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-1- a a v v 4 4 5 5 c c q q u u a a r r t t e e r r - - b b r r i i c c k k s s e e r r i i e e s s t t e e c c h h n n i i c c a a l l r r e e f f e e r r e e n n c c e e n n o o t t e e s s 1.5v 1.5v , 1.8v , 1.8v , 3.3v , 3.3v , 5v single output , 5v single output 48v input, 100w dc-dc converter 48v input, 100w dc-dc converter (rev01) usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 publishing date: 20020621
a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -2- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com introduction introduction the AV45C quarter-brick series comes in a industry standard quarter-brick package of 1.45" x 2.28" x 0.5" and footprint, and incorpo- rates the super high efficiency up to 90%(@5vout), and high power density up to 60.5w/in 3 . the input range is 36v-75v, and input is fully isolated from output and the isola- tion voltage is 1500vdc. the typical efficiencies are 90% for the 5v output, 89% for the 3.3v output, 85% for the 1.8v and 1.5v output. designed using a synchronous rectification topology, AV45C series incorporates simple structure, good electrical performance and high reliability. standard features include input lvp, output ovp, ocp, short circuit protection, and over-temperature protection. the AV45C quarter-brick series is designed to meet cispr22, fcc class a, ul, tuv, and csa certifications. design features design features high efficiency high power density low output noise input under-voltage lockout cnt function trim function remote sense output short circuit protection output current limiting output over-voltage protection overtemperature protection high input-output isolation voltage options options heat sink available for extended operation. choice of cnt logic configuration.
a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -3- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com fuse* tr i m -vo -s +vo +s -vin cnt +vin load c3 c2 vin c1* fuse*: use external fuse ( fast blow type ) for each unit. 5v output 10a (pout=100w) 3.3v output 8a (pout=66w) 1.8v output 5a (pout=36w) 1.5v output 5a (pout=30w) c1*: recommended input capacitor c1 -20 o c ~ +100 o c : 100f/100v high frequency aluminum electrolytic capacitor for 1.5vout & 1.8vout 220f/100v high frequency aluminum electrolytic capacitor for 3.3vout & 5vout -40 o c ~ +100 o c : 220f/100v high frequency aluminum electrolytic capacitor for 1.5vout & 1.8vout 470f/100v high frequency aluminum electrolytic capacitor for 3.3vout & 5vout c2*: recommended output capacitor c2 -20 o c ~ +100 o c : 1000f/10v (high frequency aluminum electrolytic capacitor) -40 o c ~ +100 o c : for this temperature, use two pieces of 1000f/10v capacitor in parallel or one 2200f high frequency aluminum electrolytic capacitor. c3: recommended 1f/10v ceramic type capacitor note: the AV45C modules can not be used in parallel mode directly!! there is no minimum load requirement for the AV45C series modules. t t ypical application ypical application
a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -4- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com block diagram block diagram ordering information ordering information AV45C-048l-050f20ha 3.3a 36-75v positive 20a 70 150 90% 4.80(0.189) AV45C-048l-050f20han 3.3a 36-75v negative 20a 70 150 90% 4.80(0.189) AV45C-048l-033f20ha 2.05a 36-75v positive 20a 70 150 89% 4.80(0.189) AV45C-048l-033f20han 2.05a 36-75v negative 20a 70 150 89% 4.80(0.189) AV45C-048l-018f20ha 1.25a 36-75v positive 20a 70 150 86% 4.80(0.189) AV45C-048l-018f20han 1.25a 36-75v negative 20a 70 150 86% 4.80(0.189) AV45C-048l-015f20ha 1.0a 36-75v positive 20a 70 150 85% 4.80(0.189) AV45C-048l-015f20han 1.0a 36-75v negative 20a 70 150 85% 4.80(0.189) +vout -vout +sense -sense trim +vin -vin cnt model input input cnt output ripple noise efficiency pin length number current voltage logic current (mv p-p) (mv p-p) typ mm(inch)
a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -5- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com absolute maximum rating input voltage(continuous) -0.3 80 vdc input voltage(peak/surge) -0.3 100 vdc 100ms non-repetitive operating case temperature -40 100 c storage temperature -55 125 c input characteristics input voltage range 36 48 75 vdc input reflected current 10 15 map-p turn-off input voltage 31 33 v turn-on input voltage 34 36 v turn on time 20 35 ms cnt function logic high 3.5 15 vdc logic low -0.7 1.8 vdc control current 2 ma general specifications mtbf 2000 k hrs bellcore tr332, t case=30c isolation 1500 vdc pin solder temperature 260 c wave solder < 10 s hand soldering time 5 s iron temperature 425c weight 60 grams characteristic min typ max units notes characteristic min typ max units notes characteristic min typ max units notes characteristic min typ max units notes
AV45C-048l-050f20ha(n) output characteristics power 100 w output current 20 a output setpoint voltage 4.90 5.00 5.10 vdc vin=48v, io=20a line regulation 0.02 0.2 %vo vin=36~75v, io=20a load regulation 0.03 0.5 %vo io=0~20a, vin=48v dynamic response 50-75% load 1 %vo ta=25c, di/dt=1a/10s 100 s ta=25c, di/dt=1a/10s 50-25% load 1 %vo ta=25c, di/dt=1a/10s 100 s ta=25c, di/dt=1a/10s current limit threshold 22 28 a short circuit current 27 30 a efficiency 90 % vin=48v, io=20a trim range 80 110 %vo over voltage protection setpoint 5.7 6.8 v sense compensation 0.5 v temperature regulation 0.003 0.02 %v o/c ripple (p-p) 40 70 mv ( 0 to 20mhz bandwidth ) noise (p-p) 100 150 mv ( 0 to 20mhz bandwidth ) over temperature protection 100 115 c switching frequency 250 khz a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -6- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com characteristic min typ max units notes
AV45C-048l-033f20ha(n) output characteristics power 66 w output current 20 a output setpoint voltage 3.24 3.3 3.36 vdc vin=48v, io=20a line regulation 0.02 0.2 %vo vin=36~75v, io=20a load regulation 0.03 0.5 %vo io=0~20a, vin=48v dynamic response 50-75% load 2 %vo ta=25c, di/dt=1a/10s 100 s ta=25c, di/dt=1a/10s 50-25% load 2 %vo ta=25c, di/dt=1a/10s 100 s ta=25c, di/dt=1a/10s current limit threshold 22 28 a short circuit current 27 30 a efficiency 89 % vin=48v, io=20a trim range 80 110 %vo over voltage protection setpoint 3.9 5.0 v sense compensation 0.5 v temperature regulation 0.003 0.02 %v o/c ripple (p-p) 40 70 mv ( 0 to 20mhz bandwidth ) noise (p-p) 100 150 mv ( 0 to 20mhz bandwidth ) over temperature protection 100 115 c switching frequency 250 khz a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -7- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com characteristic min typ max units notes
usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com -8- AV45C-048l-018f20ha(n) output characteristics power 36 w output current 20 a output setpoint voltage 1.77 1.80 1.83 vdc vin=48v, io=20a line regulation 0.02 0.2 %vo vin=36~75v, io=20a load regulation 0.1 0.5 %vo io=0~20a, vin=48v dynamic response 50-75% load 3 %vo ta=25c, di/dt=1a/10s 100 s ta=25c, di/dt=1a/10s 50-25% load 3 %vo ta=25c, di/dt=1a/10s 100 s ta=25c, di/dt=1a/10s current limit threshold 22 28 a short circuit current 27 30 a efficiency 86 % vin=48v, io=20a trim range 80 110 %vo over voltage protection setpoint 2.2 2.8 v sense compensation 10 %vo temperature regulation 0.003 0.02 %v o/c ripple (p-p) 40 70 mv ( 0 to 20mhz bandwidth ) noise (p-p) 100 150 mv ( 0 to 20mhz bandwidth ) over temperature protection 100 115 c switching frequency 250 khz characteristic min typ max units notes a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 5 5 5 5 v v v v a a a a n n n n d d d d 1 1 1 1 . . . . 8 8 8 8 v v v v o o o o u u u u t t t t p p p p u u u u t t t t , , , , 1 1 1 1 0 0 0 0 0 0 0 0 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t
AV45C-048l-015f20ha(n) output characteristics power 30 w output current 20 a output setpoint voltage 1.47 1.50 1.53 vdc vin=48v, io=20a line regulation 0.02 0.2 %vo vin=36~75v, io=20a load regulation 0.1 0.5 %vo io=0~20a, vin=48v dynamic response 50-75% load 3 %vo ta=25c, di/dt=1a/10s 100 s ta=25c, di/dt=1a/10s 50-25% load 3 %vo ta=25c, di/dt=1a/10s 100 s ta=25c, di/dt=1a/10s current limit threshold 22 28 a short circuit current 27 30 a efficiency 85 % vin=48v, io=20a trim range 80 110 %vo over voltage protection setpoint 1.9 2.5 v sense compensation 10 %vo temperature regulation 0.003 0.02 %v o/c ripple (p-p) 40 70 mv ( 0 to 20mhz bandwidth ) noise (p-p) 100 150 mv ( 0 to 20mhz bandwidth ) over temperature protection 100 115 c switching frequency 250 khz a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -9- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com characteristic min typ max units notes
a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -10- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com characteristic curves characteristic curves (at 25 (at 25 c) c) typical efficiency AV45C-048l-050f20han 2 4 6 8 10 12 14 16 18 20 output current, io(a) 60 65 70 75 80 85 90 95 efficiency (%) 75vin 48vin 36vin typical efficiency AV45C-048l-033f20han 2 4 6 8 10 12 14 16 18 20 output current, io(a) 50 55 60 65 70 75 80 85 90 efficiency (%) 75vin 48vin 32vin typical efficiency AV45C-048l-018f20han typical efficiency AV45C-048l-015f20han 0 0 4 4 8 8 1 1 2 2 1 1 6 6 2 2 0 0 output current(a) 5 5 0 0 6 6 0 0 7 7 0 0 8 8 0 0 9 9 0 0 efficiency(%) 7 7 5 5 v v i i n n 4 4 8 8 v v i i n n 3 3 6 6 v v i i n n 0 0 4 4 8 8 1 1 2 2 1 1 6 6 2 2 0 0 output current(a) 5 5 0 0 5 5 5 5 6 6 0 0 6 6 5 5 7 7 0 0 7 7 5 5 8 8 0 0 8 8 5 5 9 9 0 0 efficiency(%) 7 7 5 5 v v i i n n 4 4 8 8 v v i i n n 3 3 6 6 v v i i n n
characteristic curves characteristic curves (at 25 (at 25 c) c) a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -11- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com typical output overcurrent characteristics AV45C-048l-050f20han typical output overcurrent characteristics AV45C-048l-018f20han output voltage (volts) output curent (amps) 1.5 2 2.5 3 3.5 4 4.5 5 5.5 0 5 10 15 20 25 30 vin=36v vin=48v vin=72v output voltage (volts) output curent (amps) 1.4 1.5 1.6 1.7 1.8 1.9 0 5 10 15 20 25 vin=36v vin=48v vin=72v
t t ransient response ransient response (48v rated input voltage, full load, at 25 c) (48v rated input voltage, full load, at 25 c) a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -12- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com typical transient response to step load change from 50%-75%-50%iomax,AV45C-048l-050f20han typical transient response to step load change from 75%-50%iomax, AV45C-048l-050f20han typical transient response to step load change from 50%-75%iomax, AV45C-048l-050f20han typical transient response to step load change from 50%-75%-50%iomax, AV45C-048l-018f20han typical transient response to step load change from 75%-50%iomax, AV45C-048l-018f20han typical transient response to step load change from 50%-75%iomax, AV45C-048l-018f20han
characteristic curves characteristic curves (48v rated input voltage, full load, at 25 c) (48v rated input voltage, full load, at 25 c) a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -13- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com typical start-up from power on AV45C-048l-050f20han typical start-up from power on AV45C-048l-018f20han typical shut-down from power off AV45C-048l-050f20han typical shut-down from power off AV45C-048l-018f20han
characteristic curves characteristic curves (48v rated input voltage, full load, at 25 c) (48v rated input voltage, full load, at 25 c) a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -14- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com typical start-up transient with cnt AV45C-048l-050f20han typical start-up transient with cnt AV45C-048l-018f20han typical shut-down transient with cnt AV45C-048l-050f20han typical shut-down transient with cnt AV45C-048l-018f20han
characteristic curves characteristic curves (48v rated input voltage, full load, at 25 c) (48v rated input voltage, full load, at 25 c) a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -15- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com typical output ripple voltage AV45C-048l-050f20han typical output ripple voltage AV45C-048l-018f20han overvoltage protection AV45C-048l-050f20han overvoltage protection AV45C-048l-018f20han
a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -16- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com pin location pin location the +vin and -vin input connection pins are located as shown in figure 1. AV45C series converters have a 2:1 input voltage range and can accept 36-75 vdc input. care should be taken to avoid applying reverse polarity to the input which can dam- age the converter. input characteristic input characteristic fusing fusing the AV45C power module has no internal fuse. an external fuse must always be employed! to meet international safety requirements, a 250 volt rated fuse should be used. if one of the input lines is connected to chassis ground, then the fuse must be placed in the other input line. standard safety agency regulations require input fusing. recommended fuse ratings for the AV45C quarter-brick are shown in table 1. note: the fuse is normal blow type. input reverse v input reverse v oltage protection oltage protection under installation and cabling conditions where reverse polarity across the input may occur, reverse polarity protection is recommended. protection can easily be provided as shown in figure 2. in both cases the diode rating is deter- mined by the power of the converter. placing the diode across the inputs rather than in-line with the input offers an advan- tage in that the diode only conducts in a reverse polarity condition, which increases circuit efficiency and thermal performance. input undervoltage protection input undervoltage protection the AV45C quarter-brick series is protected against undervoltage on the input. if the input voltage drops below the acceptable range, the converter will shut down. it will automatically restart when the undervoltage condition is removed. input filter input filter input filters are included in the converters to help achieve standard system emissions certifi- cations. some users however, may find that additional input filtering is necessary. the AV45C quarter-brick series has an internal switching frequency of 250 khz so a high fre- quency capacitor mounted close to the input terminals produces the best results. to reduce reflected noise, a capacitor can be added across the input as shown in figure 3, forming -vin cnt +vin -vo -sense trim +sense +vo fig.1 pins location ( pin-side view ) t t able 1 able 1 series fuse rating(48vin) AV45C 5vout 10a (pout=100w) AV45C 3.3vout 8a (pout=66w) AV45C 1.8vout 5a (pout=36w) AV45C 1.5vout 5a (pout=30w) +vin -vin +vin -vin fig.2 reverse polarity protection circuits
a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -17- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com a filter. the recommended value of the capac- itor c1 can refer to the t t ypical application ypical application on page 3. also when a filter inductor is connected in series with the power converter input or when the input wiring is long (since the wiring can act as an inductor), an input capacitor c 1 should be added. failure to use an input capacitor under these conditions can produce large input volt- age spikes and an unstable output. for conditions where emi is a concern, figure 4 shows an input filter designed to reduce emi effects. cnt function cnt function two cnt logic options are available. the cnt logic, cnt voltage and the module working state is as the following table 2. n--- means ?negative logic? p--- means ?positive logic? l--- means ?low voltage?, -0.7v [ l [ 1.8v h--- means ?high voltage?, 3.5v [ h [ 15v on--- means ?module is on? off--- means ?module is off? open--- means ? cnt pin is left open ? note: the v cnt [ 15v the following figure 5 to 8 are a few simple cnt circuits. safety consideration safety consideration for safety-agency approval of the system in which the power module is used, the power +vin -vin c1 fig.3 ripple rejection input filter +vin -vin +vo -vo c6 100 c3 2200p c10 2200p c4 2200p c11 2200p l1 2.5mh c7 100 c5 2200p c12 2200p c8 1000 c9 4700p c1 2200p c2 2200p c13 2200p c14 2200p fig.4 emi reduction input filter -v in cnt -v in cnt -v in cnt -v in cnt fig.8 relay cnt control fig.5 simple cnt control fig.6 transistor cnt control fig.7 isolated cnt control t t able 2 able 2 l h open n on on off off off off p off off on on on on
a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -18- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com module must be installed in compliance with the spacing and separation requirements of the end-use safety agency standard, i.e., ul1950, csa c22.2 no. 950-95, and en60950. the input-to-output 1500vdc isolation is an opera- tional insulation. the dc/dc power module should be installed in end-use equipment, in compliance with the requirements of the ulti- mate application, and is intended to be supplied by an isolated secondary circuit. when the sup- ply to the dc/dc power module meets all the requirements for selv(<60vdc), the output is considered to remain within selv limits (level 3). if connected to a 60vdc power system, dou- ble or reinforced insulation must be provided in the power supply that isolates the input from any hazardous voltages, including the ac mains. one input pin and one output pin are to be grounded or both the input and output pins are to be kept floating. single fault testing in the power supply must be performed in combi- nation with the dc/dc power module to demonstrate that the output meets the require- ment for selv. the input pins of the module are not operator accessible. note : do not ground either of the input pins of the module, without grounding one of the output pins. this may allow a non-selv voltage to appear between the output pin and ground. output characteristics output characteristics minimum load requirement minimum load requirement there is no minimum load requirement for the AV45C quarter-brick series modules. remote sensing remote sensing the AV45C quarter-brick series can remotely sense both lines of its output which moves the effective output voltage regulation point from the output terminals of the unit to the point of connection of the remote sense pins. this fea- ture automatically adjusts the real output volt- age of the AV45C series in order to compen- sate for voltage drops in distribution and main- tain a regulated voltage at the point of load. when the converter is supporting loads far away, or is used with undersized cabling, sig- nificant voltage drop can occur at the load. the best defense against such drops is to locate the load close to the converter and to ensure ade- quately sized cabling is used. when this is not possible, the converter can compensate for a drop of up to 10%vo, through use of the sense leads. when used, the + and - sense leads should be connected from the converter to the point of load as shown in figure 9 using twisted pair wire. the converter will then regulate its output voltage at the point where the leads are con- nected. care should be taken not to reverse the sense leads. if reversed, the converter will trig- ger ovp protection and turn off. when not used, the +sense lead must be connected with +vo, and -sense with -vo. also note that the output voltage and the remote sense voltage offset must be less than the minimum overvolt- age trip point. note that at elevated output voltages the maxi- mum power rating of the module remains the same, and the output current capability will decrease correspondingly. +v out -v out load +sense -sense twisted pair +s -s fig.9 sense connections
a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -19- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com output t output t rimming rimming users can increase or decrease the output volt- age set point of a module by connecting an external resistor between the trim pin and either the sense (+ ) or sense ( - ) pins. the trim resistor should be positioned close to the module. if not using the trim feature, leave the trim pin open. trimming up by more than 10% of the nominal output may damage the converter or trig the ovp protection. trimming down more than 20% can cause the converter to regulate improperly. trim down and trim up circuits and the corresponding configuration are shown in figure 10 to figure 14. note that at elevated output voltages the maximum power rating of the module remains the same, and the output current capability will decrease correspondingly. % change in output voltage (y) adjustment resistor value (k ? ) 0 200 400 600 800 1000 1200 1400 1600 024 681012 5.1vo(100+y) r adj-up = 510 1.225y y - v i (+) v i (?) cnt v o (+) v o (?) sense(+) trim sense(?) r adj-up r load where y is the adjusting percentage of the voltage. 0 < y < 10 r adj-up is in k ? . - 10.2 fig.12 resistor selection for 5vout trimming up fig.10 circuit configuration and equation to trim up output voltage % change in output voltage (y) adjustment resistor value (k ? ) 0 25 50 75 100 125 150 175 200 225 250 024681012 r adj-down = 0 < y < 20 where y is the adjusting percentage of the voltage. radj-up is in k ? . v i (+) v i ( ? ) cnt v o (+) v o ( ? ) sense(+) trim sense( ? ) r adj-down r load 510 y - 10.2 fig.14 resistor selection for trimming down output fig.11 circuit configuration and equation to trim down output voltage fig.13 resistor selection for 1.8vout trimming up % change in output voltage (y) adjustment resistor value (k ? ) 0 50 100 150 200 250 300 350 400 450 500 0 5 10 15 20 25
a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -20- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com output over-current protection output over-current protection AV45C quarter-brick series dc/dc converters feature foldback current limiting as part of their overcurrent protection (ocp) circuits. when output current exceeds 110 to 140% of rated current, such as during a short circuit condition, the output will shutdown immediately, and can tolerate short circuit conditions indefinitely. when the overcurrent condition is removed, the converter will automatically restart. output filters output filters when the load is sensitive to ripple and noise, an output filter can be added to minimize the effects. a simple output filter to reduce output ripple and noise can be made by connecting a capacitor across the output as shown in figure 15. the recommended value for the output capacitor c1 is 2200 f/10v (refer to page 3). extra care should be taken when long leads or traces are used to provide power to the load. long lead lengths increase the chance for noise to appear on the lines. under these con- ditions c2 can be added across the load as shown in figure 16. the recommended compo- nent for c2 is 2200 f/10v capacitor and con- necting a 0.1 f ceramic capacitor c1 in paral- lel generally. decoupling decoupling noise on the power distribution system is not always created by the converter. high speed analog or digital loads with dynamic power demands can cause noise to cross the power inductor back onto the input lines. noise can be reduced by decoupling the load. in most cases, connecting a 10 f tantalum capacitor in paral- lel with a 0.1 f ceramic capacitor across the load will decouple it. the capacitors should be connected as close to the load as possible. ground loops ground loops ground loops occur when different circuits are given multiple paths to common or earth ground, as shown in figure 17. multiple ground points can slightly different potential and cause current flow through the circuit from one point to another. this can result in additional noise in all the circuits. to eliminate the problem, circuits should be designed with a single ground con- nection as shown in figure 18. +v out -v out load c 1 c 2 fig.16 output ripple filter for a distant load +v out -v out load c 1 fig.15 output ripple filter +vout -vout load load r line r line r line r line r line r line ground loop fig.17 ground loops fig.18 single point ground +vout -vout load load r line r line r line r line r line
a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -21- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com output over-v output over-v oltage protection oltage protection the over-voltage protection has a separate feedback loop which activates when the output voltage is between 5.7~6.8v (for 5vout) and 2.2~2.8v (for 1.8vout). when an over-voltage condition occurs, an internal ? turn off ? signal shut off the module. the module will restart after power on again. parallel power distribution parallel power distribution figure 19 shows a typical parallel power distri- bution design. such designs, sometimes called daisy chains, can be used for very low output currents, but are not normally recommended. the voltage across loads far from the source can vary greatly depending on the ir drops along the leads and changes in the loads clos- er to the source. dynamic load conditions increase the potential problems. radial power distribution radial power distribution radial power distribution is the preferred method of providing power to the load. figure 20 shows how individual loads are connected directly to the power source. this arrangement requires additional power leads, but it avoids the voltage variation problems associated with the parallel power distribution technique. mixed distribution mixed distribution in the real world a combination of parallel and radial power distribution is often used. dynamic and high current loads are connected using a radial design, while static and low current loads can be connected in parallel. this combined approach minimizes the drawbacks of a parallel design when a purely radial design is not feasible . redundant operation redundant operation a common requirement in high reliability sys- tems is to provide redundant power supplies. the easiest way to do this is to place two con- verters in parallel, providing fault tolerance but not load sharing. oring diodes should be used to ensure that failure of one converter will not cause failure of the other converter. figure 22 shows such an arrangement. upon application of power, one of the converters will provide a slightly higher output voltage and will support the full load demand. the second converter will see a zero load condition and will ?idle?. if the first converter should fail, the second converter will support the most load. when designing redundant converter circuits, shottky diodes should be used to minimize the forward voltage drop. the voltage drop across the shottky diodes must also be considered when deter- mining load voltage requirements. load 1 load 2 load 3 +vout -vout r l1 r l2 r l3 r g1 r g2 r g3 r l = lead resistance r g = ground lead resistance fig.20 radial power distribution load 1 load 2 load 3 +vout -vout r l1 r l2 r l3 r g1 r g2 r g3 i 1 + i 2 + i 3 i 2 + i 3 i 3 r l = lead resistance r g = ground lead resistance fig.19 parallel power distribution load 1 load 2 load 3 +vout -vout r l1 r l2 r l3 r g1 r g2 r g3 r l = lead resistance r g = ground lead resistance load 4 r l4 r g4 fig.21 mixed power distribution +v out -v out +v out -v out load fig.22 redundant operation
a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -22- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com a a v45c quarter-brick series v45c quarter-brick series mechanical considerations mechanical considerations installation installation although AV45C quarter-brick series convert- ers can be mounted in any orientation, free air- flowing must be taken. normally power compo- nents are always put at the end of the airflow path or have the separate airflow paths. this can keep other system equipment cooler and increase component life spans. soldering soldering AV45C quarter-brick series is compatible with standard wave soldering techniques. when wave soldering, the converter pins should be preheated for 20-30 seconds at 110 c, and wave soldered at 260c for less than 10 sec- onds. when hand soldering, the iron temperature should be maintained at 4 25c and applied to the converter pins for less than 5 seconds. longer exposure can cause internal damage to the converter. cleaning can be performed with cleaning solvent ipa or with water. mtbf mtbf the mtbf, calculated in accordance with bellcore tr-nwt-000332 is 2,000,000 hours. obtaining this mtbf in practice is entirely pos- sible. mounting the modules in the well ventilat- ed conditions or with heatsink on are expected to raise the mtbf. astec can offer custom thermal solutions. please contact the factory for details. a a v45c hole pattern v45c hole pattern component-side footprint. dimensions are in millimeters and (inches). fig. 23 is mechanical chart. fig. 24 is hole pattern.
usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com pin function pin function 1 -vin 4 -vo 2 cnt 5 -sense 3 +vin 6 trim 7 +sense 8+vo fig.23 mechanical chart ( pin-side view ) fig.24 hole pattern ( base-plate side view ) a a a a v v v v 4 4 4 4 5 5 5 5 c c c c q q q q u u u u a a a a r r r r t t t t e e e e r r r r - - b b b b r r r r i i i i c c c c k k k k s s s s e e e e r r r r i i i i e e e e s s s s 1 1 1 1 0 0 0 0 0 0 0 0 w w w w p p p p o o o o w w w w e e e e r r r r c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , s s s s i i i i n n n n g g g g l l l l e e e e o o o o u u u u t t t t p p p p u u u u t t t t -23- 3.6 (0.14) 10.9 (0.43) 26.16 (1.030) 15.24 (0.600) 7.62 (0.300) 5.3 (0.21) mounting inserts m3 x 0.5 through, 4 places ? sense trim + sense cnt 5.3 (0.21) 47.2 (1.86) 15.24 (0.600) 7.62 (0.300) 11.43 (0.450) 3.81 (0.150) v o (+) v o (?) v in (?) v in (+) 50.80 (2.000) 1 2 3 4 5 6 7 8 1.450 (36.83) 0.600 (15.24) 0.43 (10.92) 0.21 (5.33) 0.21 (5.33) 2.28 (57.9) 1.86 (47.27) m3 x 0.5 mounting inserts typical 4 places 0.150 (3.81) 0.300 (7.62) 0.450 (11.43) 0.600 (15.24) 1.030 (26.16) 0.50 (12.7) 0.189 (4.8) pin ext. 0.040 (1.020) dia plated brass pins typical 6 places 0.060 (1.57) dia plated brass pins typical 2 places 0.300 7.62 2.00 (50.8) 0.140 (3.56) tolerances: inches millimeters .xx ! 0.020 .x ! 0.5 .xxx ! 0.010 .xx ! 0.25 pins >4mm ! 0.02inch ( ! 0.5mm) <4mm ! 0.01inch ( ! 0.25mm) dimensions: inches (mm) dimensions: mm(inches)
part number description ss pp c -0 iv l- xxx f yy h n - p - mx -options p = pin length omit this digit for standard 5mm 6 = 3.8mm, 7= 5.8mm iv = input voltage 8 = 2.8mm 05 = range centered on 5v 12 = range centered on 12v enable logic polarity 24 = 18 to 36(2:1), 9 to 36v(4:1) omit for positive enable logic 36 = 20 to 60v n = negative enable 46 = 18v to 75v (4:1) except: ak60c-20h, bk60c-30h 48 = typ 36 to 75v omit for negative logice p = positive logic c = pinout compatability a= astec footprint or "non lucent" footprint h = high efficiency (synch rect.) c= ind std, exact lucent drop in omit h if conventional diode (low eff) yy = output current pp = package type ie. 08 = 8 amps 40 = 1" x 2" smd 42 = 1.5" x 2" smd f = # of outputs 45 = 1.45" x 2.3" (1/4 brk) f = single output 60 = 2.4" x 2.3" (1/2 brk) d = dual output 80 = full size 4.6" x 2.4" 72= 2.35" x 3.3 (3/4 brk) xxx = output voltage format is xx.x (ie 1.8v = 018) ss = series aa = 1/2brick dual (old designator) ak = ind std sizes (1/4, 1/2, full) <150w mx = options am/bm = full size, astec pin out m1,m2 = .25" height heatsink al = half size, astec pin-out m3,m4 = .5" height heatsink bk = ind std size =>150w or feature rich m5.m6 = 1.0" height heatsink av = avansys product note: for some products, they may not conform with the part number description above absolutely. revision q attachment i page 1 of 2
new part number description acs ii v 1 v 2 v 3 v in - e t p mx output voltage a = 5.0v e = 7.5v f = 3.3v b = 12v, c = 15v g = 2.5v l = 8v , h = 24v, r = 28v d = 2.0v / 2.1v omit v2 and v3 if single output y = 1.8v omit v3 if dual output m = 1.5v ie for dual output 5 and 3.3v k = 1.2v v1 =a, v2 = f, v3 =omit j = 0.9v v1 =a, v2 = f, v3 =omit ii = output current max ie 60 = 60 amps vin = input voltage range 300 = 250v to 450v s = size 48 = 36v to 75v f = full brick 24 = 18v to 36v h = half brick 03 = 1.8v to 5.0v q = quarter brick 08 = 5.0v to 13.0v s = 1 x 2 18 pin smt pfc: power factor corrected e = 1 x 2 thru hole c = (.53x1.3x.33) smt (austin lite drop in) e = enable logic for > 15w v = conventional package (2x2.56") or ( omit this digit for positive enable a = sip n = negative logic w = convent pkg (wide 2.5x3) e = enable logic for < 15w r = 1 x 1 thru hole omit this digit for no enable option a = sip 1 = negative logic t = 1.6 x 2 4 = positive logic c = construction trim for 1w to 15w e = enhanced thermals (baseplate or adapter plate) 9 = trim added i = integrated (full featured) hong kong models l = low profile (open frame, no case - isolated) p = open frame (sip or smt) non-isolated p = pin length omit this digit for standard 5mm 6 = 3.8mm 8 = 2.8mm 7 = 5.8 mm mx - factory options customer specific note: for some products, they may not conform with the new part number description above absolutely. revision q attachment i page 2 of 2

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