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c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 1 a n p e c r e s e r v e s t h e r i g h t t o m a k e c h a n g e s t o i m p r o v e r e l i a b i l i t y o r m a n u f a c t u r a b i l i t y w i t h o u t n o t i c e , a n d a d v i s e c u s t o m e r s t o o b t a i n t h e l a t e s t v e r s i o n o f r e l e v a n t i n f o r m a t i o n t o v e r i f y b e f o r e p l a c i n g o r d e r s . 6 - c h a n n e l d c / d c c o n v e r t e r c o n t r o l i c supports for synchronous rectification (ch1, ch2 and ch5) supports for down or up-down zeta conversions (ch1 and apw7095 ch2) supports for up, flyback or up-down sepic conversions (apw7095a ch2, ch3, apw7095 ch4, ch5 and ch6) supports for inverting conversion (apw7095a ch4) low start-up voltage : 1.4v (ch6) power supply voltage range - ch1 to ch5 : 3.0v to 6.5v - ch6 : 2.4v to 6.5v 1% reference voltage accuracy wide operating frequency 100khz to 1mhz soft-start function (ch1 to 6) power good (pgood) indicator for ch1 low shutdown current output short-circuit detections lead free available (rohs compliant) t h e a p w 7 0 9 5 / a i s a 6 - c h a n n e l , f r e q u e n c y - s e t t a b l e , v o l t a g e - m o d e , d c / d c c o n t r o l i c p r o v i d i n g a c o m p l e t e p o w e r s u p p l y s o l u t i o n f o r h i g h - p e r f o r m a n c e p o r t a b l e d i g i t a l c a m e r a s . t h e a p w 7 0 9 5 / a u s e s p u l s e - w i d t h - m o d u l a t i o n ( p w m ) a n d s y n c h r o n o u s r e c t i f i c a t i o n f o r h i g h e f f i c i e n c y s t e p - u p , s t e p - d o w n , u p - d o w n a n d i n - v e r t i n g c o n v e r t e r s w i t h f r e e i n p u t a n d o u t p u t s e t t i n g s i n 2 o r 4 - c e l l a a , 1 - c e l l l i t h i u m - i o n ( l i + ) , a n d d u a l - b a t t e r y d e s i g n s . t h e a p w 7 0 9 5 / a i n c o r p o r a t e s e r r o r a m p l i f i e r s , o u t p u t s h o r t - c i r c u i t d e t e c t i o n , u n d e r - v o l t - a g e l o c k o u t , s o f t - s t a r t a n d o u t p u t s w i t c h c o n t r o l i n t o a c h i p . t h e a p 7 0 9 5 / a i m p r o v e s p e r f o r m a n c e , c o m p o - n e n t c o u n t , a n d s i z e c o m p a r e d t o c o n v e n t i o n a l m u l t i - c h a n n e l c o n t r o l l e r s . t h e a p w 7 0 9 5 / a h a s a p o w e r - g o o d i n d i c a t o r ( p g o o d ) t h a t s i g n a l s w h e n c h 1 o u t p u t i s w i t h i n 1 0 % o f t h e s e t v o l t a g e b y m o n i t o r i n g i n 1 p i n . t h e a p w 7 0 9 5 / a i s a v a i l a b l e i n c o m p a c t 4 8 - p i n p l a s - t i c l q f p a n d t q f n p a c k a g e s . f e a t u r e s g e n e r a l d e s c r i p t i o n a p p l i c a t i o n s digital camera camcorder hand-held instrument
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 2 apw7095/a package code qd : lqfp-48 qb : tqfn-48 operating ambient temp. range e : -30 to 85 c handling code ty : tray lead free code l : lead free device blank : original device handling code temp. range package code xxxxx - date code apw7095 qd/qb : apw7095 xxxxx apw7095a qd/qb : apw7095a xxxxx xxxxx - date code lead free code o r d e r i n g a n d m a r k i n g i n f o r m a t i o n p i n o u t s 35 34 33 32 31 30 29 28 27 26 25 48 47 46 45 44 43 42 41 40 39 38 37 13 14 15 16 17 18 19 20 21 22 23 24 apw7095/a 1 2 3 4 5 6 7 8 9 10 11 12 36 swout cin6 out1-1 out1-2 out2-1 out2-2 out3 pvcc out4 pgnd out5-1 out5-2 out6 pgood fb2 dtc2 in1 fb1 dtc1 rt ct vb in3 fb3 dtc3 in2 ctl5 ctl4 ctl3 ctl1,2 ctl vcc cscp gnd vref cs dtc4 ins4 swin fb6 in6 dtc5 fb5 in5 ina4 outa4 fb4 in4 ic apw7095 apw7095a ch1 synchronous step - down synchronous step - down ch2 synchronous up - down synchronous step - up ch3 step - up step - up ch4 step - up inverting ch5 synchronous step - up synchronous step - up ch6 step - up step - up n o t e : a n p e c l e a d - f r e e p r o d u c t s c o n t a i n m o l d i n g c o m p o u n d s / d i e a t t a c h m a t e r i a l s a n d 1 0 0 % m a t t e t i n p l a t e t e r m i n a t i o n f i n i s h ; w h i c h a r e f u l l y c o m p l i a n t w i t h r o h s a n d c o m p a t i b l e w i t h b o t h s n p b a n d l e a d - f r e e s o l d i e r i n g o p e r a t i o n s . a n p e c l e a d - f r e e p r o d u c t s m e e t o r e x c e e d t h e l e a d - f r e e r e q u i r e m e n t s o f i p c / j e d e c j s t d - 0 2 0 c f o r m s l c l a s s i f i c a t i o n a t l e a d - f r e e p e a k r e f l o w t e m p e r a t u r e .
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 3 p i n d e s c r i p t i o n pin no. name i/o description 1 swout o output switch control circuit output pin. 2 swin i output switch control circuit input pin. 3 fb6 o ch6 error amplifier output pin. 4 in6 i ch6 inverted input pin of error amplifier. 5 cin6 i ch6 soft - start ca pacitor connection pin. leave this pin ?open? to disable the soft - start function. 6 dtc5 i ch5 dead time control pin. connect this pin to vref directly when the dead - time control is not used. 7 fb5 o ch5 error amplifier output pin. 8 in5 i ch5 inverted input pin of error amplifier. 9 ina4 i ch4 inverting amplifier input pin. 10 outa4 o ch4 inverting amplifier output pin. connect this pin to ina4 when the inverting amplifier is not used. 11 fb4 o ch4 error amplifier output pin. 12 in4 i ch4 inverted i nput pin of error amplifier. 13 ins4 i ch4 inverted input pin of short detection comparator. 14 dtc4 i ch4 dead time control pin. connect this pin to vref directly when the dead - time control is not used. 15 cs - ch1 to ch5 soft - start capacitor connectio n pin. leave this pin ?open? to disable the soft - start function. 16 vref o reference voltage output pin. 17 gnd p reference voltage and control circuit ground pin. 18 cscp - short - circuit detection capacitor connection pin. connect this pin to gnd with the shortest distance to disable the timer - latch short - circuit protection circuit. 19 vcc p reference voltage and control circuit power supply pin. 20 ctl i power supply and ch6 control pin. ?h? level: operation mode. ?l? level: standby mode 21 ctl1,2 i ch1 and ch2 control pin. ?h? level: operation mode. ?l? level: off mode 22 ctl3 i ch3 control pin. ?h? level: operation mode. ?l? level: off mode 23 ctl4 i ch4 control pin. ?h? level: operation mode. ?l? level: off mode 24 ctl5 i ch5 control pin. ?h? level: operation mode. ?l? level: off mode
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 4 p i n d e s c r i p t i o n ( c o n t . ) pin no. name i/o description 25 rt - oscillator frequency setting resistor connection pin. 26 ct - oscillator frequency setting capacitor connection pin. 27 vb o triangular wave oscillator regulator output pin. 28 in3 i ch3 inverted input pin of err or amplifier. 29 fb3 o ch3 error amplifier output pin. 30 dtc3 i ch3 dead time control pin. connect this pin to vref directly when the dead - time control is not used. 31 in2 i ch2 inverted input pin of error amplifier. 32 fb2 o ch2 error amplifier outpu t pin. 33 dtc2 i ch2 dead time control pin. connect this pin to vref directly when the dead - time control is not used. 34 in1 i ch1 inverted input pin of error amplifier. 35 fb1 o ch1 error amplifier output pin. 36 dtc1 i ch1 dead time control pin. conn ect this pin to vref directly when the dead - time control is not used. 37 out1 - 1 o ch1 main - side mosfet drive pin. connect out1 - 1 to the main mosfet. 38 out1 - 2 o ch1 mosfet drive pin for synchronous rectifier. 39 out2 - 1 o ch2 main - side mosfet drive pin. apw7095: drive a p - channel mosfet for a step - down converter. apw7095a: drive an n - channel mosfet for a step - up converter. 40 out2 - 2 o ch2 mosfet drive pin for synchronous rectifier 41 out3 o ch3 mosfet drive pin. 42 pvcc p drive circuit power supply pin . 43 out4 o ch4 mosfet drive pin. apw7095: drive an n - channel mosfet for a step - up converter. apw7095a: drive a p - channel mosfet for a inverting step - up/down converter. 44 pgnd p drive circuit ground pin. 45 out5 - 1 o ch5 main - side mosfet drive pin. co nnect out5 - 1 to the main mosfet. 46 out5 - 2 o ch5 mosfet drive pin for synchronous rectifier. 47 out6 o ch6 mosfet drive pin. 48 pgood o indicator output pin. this pin is an open - drain output used to indicate status of the ch1 output voltage.
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 5 b l o c k d i a g r a m drive 2-1 drive 1-1 drive 1-2 ch1 pwm controller cs ctl logic osc scp uvlo 2v cs vb rt ct cscp vref gnd 2.49v 1.25v 1.0v 1.25v 1.0v 1.0v 1.25v 1.0v 1.0v 0.9v vb:2v 0.9v 1.25v x1.1 1.25v x0.9 comp. error amp. scp comp. error amp. scp comp. error amp. scp comp. error amp. scp comp. inv amp. 1.25v error amp. scp comp. 1.25v error amp. scp comp. ref power on/off ctl 37.5k 62.5k ct2 ct1 ct ct2 ct2 ct2 ct1 ct1 ct dtc1 fb1 dtc2 fb2 dtc3 fb3 dtc4 fb4 dtc5 fb5 fb6 in1 scp control soft-start ctl1,2 ctl1,2 ctl3 ctl4 ctl5 uvlo ch2 pwm controller ch3 pwm controller ch4 pwm controller ch5 pwm controller ch6 pwm controller (max. duty=80%) driver 1-1 driver 1-2 driver 2-1 driver 2-2 driver 3 driver 4 driver 5-1 driver 5-2 driver 6 fb1 in1 dtc1 fb2 in2 dtc2 fb3 in3 dtc3 ina4 outa4 fb4 in4 ins4 dtc4 fb5 in5 dtc5 fb6 in6 ctl1,2 ctl3 ctl4 ctl5 cin6 out1-1 pvcc out1-2 out2-1 out2-2 out3 out4 out5-1 out5-2 out6 pgnd swin vcc ctl swout pgood 0.8v 0.3v 1.8v 1.1v 1.8v 1.1v power comp.
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 6 a b s o l u t e m a x i m u m r a t i n g s symbol parameter rating unit v cc vcc supply voltage (vcc to gnd) - 0.3 ~ 7 v v pvcc pvcc supply voltage (pvcc to gnd) - 0.3 ~ 7 v in1~6, ina4, ins4, dtc1~5 input voltages - 0.3 ~ v cc +0.3 v ctl, ctl1~5, swin input voltages - 0.3 ~ 7 v pgood pull hi gh voltage - 0.3 ~ 7 v maximum junction temperature 150 o c t stg storage temperature - 65 ~ 150 o c t sdr maximum soldering temperature, 10 seconds 300 o c t h e r m a l c h a r a c t e r i s t i c s symbol parameter value unit q ja junction - to - ambient resistance in free air 48 - pin plastic qfp qfn 80 o c/w r e c o m m e n d e d o p e r a t i n g c o n d i t i o n s apw7095/a symbol parameter condition min. typ. max. unit v cc start - up power supply voltage ch6 1.4 - 6.5 v ch6 2.4 5.0 6.5 v cc operating voltage ch1 to ch5 3.0 5.0 6.5 v i ref reference voltage output current vref pin - 1 - 0 ma i b vb output cu rrent vb pin - 0.5 - 0 ma in1 to in5, ina4, ins4 pins 0 - v cc v in input voltage in6 pin 0 - v cc v v ctl control voltage ctl pin 0 - 6.5 v out pin (ch1 to ch5) - 2 15 out pin (ch6) - 2 15 i o output current swout pin - 1 4 ma f osc oscillator fr equency 100 500 1000 khz c t timing capacitor 47 100 560 pf r t timing resistor 8.2 18 100 k w c s ch1 to ch5 - 0.02 7 1.0 c cin6 soft - start capacitor ch6 - 0.47 1.0 m f c scp short detection capacitor - 0.1 1.0 m f c vb vb pin capacitor 0.08 2 0.1 - m f t a operating ambient temperature - 30 25 85 o c
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 7 e l e c t r i c a l c h a r a c t e r i s t i c s apw7095/a symbol parameter test condition min. typ. max. unit i ccs vcc standby current ctl = 0v - - 10 i pvcc pvcc standby current ctl = 0v - - 10 m a i cc vcc nominal supply current ctl, ctl1 to ctl5 = 5v - 1.8 5 ma under voltage lockout v th threshold voltage rising v cc 2.5 2.7 2.9 v h hysteresis width - 0.2 - v rst ch1 t o ch5 reset voltage falling v cc 1.2 1.3 1.4 v th ch6 threshold voltage rising v cc 1.25 1.4 1.55 v reference voltage v ref reference voltage i ref = 0ma 2.46 2.49 2.51 v d v r ef / v ref output voltage temperature stability t a = - 30c to 85c - 0.5 - % line input stability v cc = 3.0v to 6.5v - 10 - 10 mv load load stability i ref = 0ma to ? 1ma - 10 - 10 mv i os short - circuit output current v ref = 2v - 25 - 18 - 1 ma soft - start v stb input standby voltage - 50 100 mv i cs soft - start charge current - 1.4 - 1.0 - 0.6 m a short - circuit detection v th threshold voltage 0.65 0.70 0.75 v v stb input standby voltage - 50 100 mv v i input latch voltage - 50 100 mv i cscp input source curre nt - 1.4 - 1.0 - 0.6 m a triangular wave oscillator f osc oscillator frequency ct=100pf, rt=18 k w ,vb=2v 450 500 550 khz d f/fdv frequency stability for voltage vcc = 3v to 6.5v - 1 10 % d f/fdt frequency stability for temperature t a = - 30c to 85c - 1 - % error amplifier (ch1 to ch5) v th threshold voltage fb = 1.45v 1.23 1.25 1.27 v d v t / v t v t temperature stability t a = - 30c to 85c - 0.5 - % i b input bias current in = 0v (ch1 to ch5) - 50 - - na a v voltage gain dc 60 100 - db bw frequency bandwidth a v = 0db - 1.0 - mhz v oh maximum output voltage 4.9 4.99 - v v ol minimum output voltage - 3 50 mv i source output source current fb = 1.45v - - 25 - 10 ma i sink output sink current fb = 1.45v 5 16 - ma r e f e r t o t h e t y p i c a l a p p l i c a t i o n c i r c u i t . t h e s e s p e c i f i c a t i o n s a p p l y o v e r , v c c = 5 v a n d t a = - 3 0 t o 8 5 c , u n l e s s o t h e r w i s e s p e c i f i e d . t y p i c a l v a l u e s r e f e r t o t a = 2 5 c .
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 8 e l e c t r i c a l c h a r a c t e r i s t i c s ( c o n t . ) apw7095/a symbol parameter test condition min. typ. max. unit error amplifier (ch6) v th threshold voltage fb = 0.55v 1.24 1.26 1.28 v d v th / v th v th temperature stability t a = - 30c to 85c - 0.5 - % i b input bias current in6 = 0v - 50 - - na a v v oltage gain dc 60 75 - db bw frequency bandwidth a v = 0db - 1.0 - mhz v oh maximum output voltage 4.9 4.99 - v v ol minimum output voltage - 3 50 mv i source output source current fb = 0.55v - - 50 - 10 ma i sink output sink current fb = 0.55v 60 120 - m a inverted amplifier (ch4) v io input offset voltage out = 1.25v - 10 0 10 mv i b input bias current in = 0v - 50 - - na a v voltage gain dc 60 100 - db bw frequency bandwidth a v = 0db - 1.0 - mhz v oh maximum output voltage 4.9 4.99 - v v ol minimum out put voltage - 3 50 mv i source output source current out = 1.25v - - 26 - 1.0 ma i sink output sink current out = 1.25v 5 16 - ma short detect comparator (ch1 to ch5) v th threshold voltage ch1 to ch5 0.97 1.00 1.03 v in = 0v (ch1 to ch3, ch5) - 50 - - i b input bias current ins4 = 0v (ch4) - 50 - - na short detect comparator (ch6) v th threshold voltage 0.8 0.9 1.0 v pwm comparator (ch1 to ch5) v t0 duty = 0% 1.0 1.1 - v t100 threshold voltage duty = 100% - 1.8 1.9 v i dtc input current dtc = 0.4v ( ch1 to ch5) - 50 - - na pwm comparator (ch6) v t0 duty = 0% 0.2 0.3 - v tmax threshold voltage duty = max. - 0.74 0.84 v d tr maximum duty cycle ct = 100pf, rt = 18k w 70 80 90 % pwm controller driver for p - mos (ch1, ch2, ch5) i source output source curr ent duty 5%, out = 0v - - 130 - 80 i sink output sink current duty 5%, out = 5v 100 160 - ma r oh out = - 15ma - 18 30 r ol output on resistance out = 15ma - 10 20 w r e f e r t o t h e t y p i c a l a p p l i c a t i o n c i r c u i t . t h e s e s p e c i f i c a t i o n s a p p l y o v e r , v c c = 5 v a n d t a = - 3 0 t o 8 5 c , u n l e s s o t h e r - w i s e s p e c i f i e d . t y p i c a l v a l u e s r e f e r t o t a = 2 5 c .
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 9 e l e c t r i c a l c h a r a c t e r i s t i c s ( c o n t . ) r e f e r t o t h e t y p i c a l a p p l i c a t i o n c i r c u i t . t h e s e s p e c i f i c a t i o n s a p p l y o v e r , v c c = 5 v a n d t a = - 3 0 t o 8 5 c , u n l e s s o t h e r - w i s e s p e c i f i e d . t y p i c a l v a l u e s r e f e r t o t a = 2 5 c . apw7095/a symbol parameter test condition min. typ. max. unit pwm controller driver for n - mos (ch1, ch2, ch5, ch6) i source output source current duty 5%, out = 0v - - 130 - 80 i sink output sink current duty 5%, out = 5v 100 160 - ma r oh out = - 15ma - 18 30 r ol output on resistance out = 15ma - 10 20 w pwm controller driver for p - mos (ch3, ch4) i source output source current duty 5%, out = 0v - - 290 - 180 i sink output sink current duty 5%, out = 5v 300 470 - ma r oh out = - 15ma - 7 15 r ol output on resistance out = 15ma - 4 10 w output switch control ( sw ) v ih swout = ?l? level 1.2 - 6.5 v il sw input voltage swout = ?h? level 0 - 0.5 v i swin input current swin = 5v - 2.5 20 m a i source output source current swout = 0v - - 7 - ma i sink output sink current swout = 5v - 19 - ma r oh out = - 4ma - 325 400 r ol output on resistance out = 4ma - 85 150 w power good v th in1 upper threshold voltage rising in1 - 110 - % v th in1 lower threshold voltage rising in1 - 94 - % upper/lower hysteresis - 2 - % v pgood pgood output voltage i pgood = 4ma - 0.17 0.8 v control block (ctl, ct1 to ct5) v ih active mode 1.5 - 6.5 v il ctl input voltage standby mode 0 - 0.5 v i ctl input current ctl = 5v - 2.6 20 m a
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 1 0 2.44 2.46 2.48 2.50 2.52 2.54 2.56 -40 -20 0 20 40 60 80 100 0 1 2 3 4 5 0 1 2 3 4 5 6 7 8 t y p i c a l c h a r a c t e r i s t i c s 0 1 2 3 4 5 0 1 2 3 4 5 6 7 8 0 1 2 3 4 5 0 1 2 3 4 5 r e f e r e n c e v o l t a g e v s . a m b i e n t t e m p e r a t u r e reference voltage, v ref (v) a m b i e n t t e m p e r a t u r e , t a ( c ) r e f e r e n c e v o l t a g e v s . c o n t r o l v o l t a g e p o w e r s u p p l y c u r r e n t v s . p o w e r s u p p l y v o l t a g e r e f e r e n c e v o l t a g e c u r r e n t v s . p o w e r s u p p l y v o l t a g e p o w e r s u p p l y v o l t a g e , v c c ( v ) p o w e r s u p p l y v o l t a g e , v c c ( v ) c o n t r o l v o l t a g e , v c t l ( v ) reference voltage, v ref (v) reference voltage, v ref (v) power supply current, i cc (ma) v c c = 5 v t a = 2 5 c v c c = 5 v t a = 2 5 c i r e f = 0 m a t a = 2 5 c v c c = 5 v t a = 2 5 c i r e f = 0 m a c t l = c t l 1 , 2 = c t l 3 = c t l 4 = c t l 5 = 5 v c t l = c t l 1 , 2 = c t l 3 = c t l 4 = c t l 5 = 5 v c t l = c t l 1 , 2 = c t l 3 = c t l 4 = c t l 5 = 5 v i r e f = 0 m a
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 1 1 0 1 2 3 4 5 0 1 2 3 4 5 6 7 8 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0 200 400 600 800 1000 1200 10 100 1000 10000 10 100 1000 10000 10 100 1000 10000 1 10 100 1000 t y p i c a l c h a r a c t e r i s t i c s ( c o n t . ) o s c i l l a t o r f r e q u e n c y v s . t i m i n g c a p a c i t o r oscillator frequency, fosc(khz) t i m i n g c a p a c i t o r , c t ( p f ) oscillator frequency, fosc(khz) o s c i l l a t o r f r e q u e n c y v s . t i m i n g r e s i s t o r c o n t r o l c u r r e n t v s . c o n t r o l v o l t a g e t r i a n g u l a r w a v e u p p e r & l o w e r t h r e s h o l d v o l t a g e s v s . o s c i l l a t o r f r e q u e n c y control current, i ctl ( m a) upper & lower threshold voltage, v ct (v) t i m i n g r e s i s t o r , r t ( k w ) c o n t r o l v o l t a g e , v c t l ( v ) o s c i l l a t o r f r e q u e n c y , f o s c ( k h z ) v c c = 5 v t a = 2 5 c v c c = 5 v t a = 2 5 c r t = 4 . 3 k w r t = 1 8 k w r t = 1 0 0 k w c t = 4 7 p f c t = 1 0 0 p f c t = 2 2 0 p f c t = 4 7 0 p f c t = 1 0 0 0 p f v c c = 5 v t a = 2 5 c r t = 1 8 k w v c c = 5 v t a = 2 5 c v t l , c t l 1 , 2 ~ c t l 5 u p p e r l o w e r
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 1 2 440 460 480 500 520 540 560 -40 -20 0 20 40 60 80 100 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 -40 -20 0 20 40 60 80 100 o s c i l l a t o r f r e q u e n c y v s . a m b i e n t t e m p e r a t u r e t y p i c a l c h a r a c t e r i s t i c s ( c o n t . ) oscillator frequency, fosc(khz) a m b i e n t t e m p e r a t u r e , t a ( c ) v c c = 5 v upper & lower threshold voltage, v ct (v) t r i a n g u l a r w a v e u p p e r & l o w e r t h r e s h o l d v o l t a g e s v s . a m b i e n t t e m p e r a t u r e a m b i e n t t e m p e r a t u r e , t a ( c ) u p p e r l o w e r c t l = c t l 1 , 2 = c t l 3 = c t l 4 = c t l 5 = 5 v r t = 1 8 k w c t = 1 0 0 p f v c c = 5 v r t = 1 8 k w c t = 1 0 0 p f
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 1 3 v v v 1 . v b a t = 2 . 7 v ~ 6 v ( 4 - c e l l b a t t e r y o r 1 - c e l l l i - i o n ) f o r 2 b u c k a n d 4 b o o s t c o n v e r t e r ( u s i n g a p w 7 0 9 5 ) driver apm2301a apm2300a ch1 buck controller 1.25v vref q1 q2 driver ch2 buck controller 1.25v vref driver ch3 boost controller 1.25v vref driver ch4 boost controller 1.25v vref driver ch5 boost controller 1.25v vref driver ch6 boost controller 1.26v vref 1.8v/300ma out1-1 out1-2 in1 fb1 apm2301a apm2300a q3 q4 3.3v/300ma out2-1 out2-2 in2 fb2 apm2300a q5 15v/20ma out3 -10v/20ma fb3 in3 swout fb6 in6 out6 fb5 in5 out5-2 fb4 in4 out4 5v 5v/300ma dtc1 dtc2 dtc3 cin6 outa4 ina4 ins4 dtc4 dtc5 apw7095 vcc 7.5v/20ma p g n d vref vref vref vref vref ctl ctl1,2 ctl3 ctl4 ctl5 swin pgood c s v b r t c t c s c p g n d v r e f vref vbat vbat 5v vbat vbat vbat c1 r1 d1 c2 r2 r3 c3 r4 r5 c4 l1 l2 c5 l3 c6 r6 r7 r8 r9 r10 d2 c7 c8 c9 c10 c11 c12 t1 d3 d4 r11 r12 r13 r14 r15 r16 c13 c14 c15 c16 c17 c18 c21 c20 c19 q6 d5 r17 r18 r19 q7 r21 r20 r23 r22 r24 c22 c23 c24 c25 l4 l5 q8 q9 q10 d6 r25 r26 r27 r28 r31 r29 l6 c26 c28 c27 q11 d7 out5-1 pvcc apm2312 apm2301a apm2300a apm2301a apm2301a apm2300a ss0520 ss12 ss12 ss12 ss12 ss12 ss12 22uf 100uf 22uh 0.1uf 1k 6.8k 15k 24k 47k 22uf 10uf 22uh 22uh 100uf 0.1uf 24k 1k 15k 18k 47k 22uf 22uf 22uf 4700pf 0.1uf 1k 165k 15k 18k 47k 0.22uf 100pf 30k 0.1uf 0.1uf 0.33uf 1k 100k 309k 0.1uf 22uh 22uf 22uf 22uf 24k 47k 100k 1k 300k 0.1uf 22uf 22uf 22uf 22uh 24k 47k 22uf 22uf 22uh 0 15k 75k 0.1uf 1k t y p i c a l a p p l i c a t i o n s
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 1 4 t y p i c a l a p p l i c a t i o n s ( c o n t . ) 2 . v b a t = 1 . 4 v ~ 3 v ( 2 - c e l l b a t t e r y ) f o r 1 b u c k , 1 i n v e r t i n g a n d 4 b o o s t c o n v e r t e r s ( u s i n g a p w 7 0 9 5 a ) driver apm2301a apm2300a ch1 buck controller 1.25v vref q1 q2 driver ch2 boost controller 1.25v vref driver ch3 boost controller 1.25v vref driver ch4 inverting controller 1.25v vref driver ch5 boost controller 1.25v vref driver ch6 boost controller 1.26v vref 1.8v/300ma apm2300a q4 4v/300ma apm2300a q5 15v/20ma 18v/3ma 5v 3.3v/300ma -7.5v/20ma vref vref vref vref vref ctl ctl1,2 ctl3 ctl4 ctl5 swin pgood vref 3.3v ( from ch5 ) vbat 5v vbat vbat vbat c1 r1 d1 c2 r2 r3 c3 r4 r5 c4 l1 l2 c6 r6 r7 r8 r9 r10 d2 c7 c8 c9 c10 c11 c12 d3 d4 r11 r12 r13 r14 r15 r16 c13 c14 c15 c16 c17 c18 c21 c20 c19 q6 d5 r17 r18 r19 q7 r21 r20 r23 r22 r24 c22 c23 c24 c25 l3 l4 q8 q9 q10 d6 r25 r26 r27 r28 r30 r31 r29 l5 c26 c28 c27 q11 d7 apm2312 apm2301a apm2300a apm2301a apm2301a apm2301a ss0520 ss12 ss0520 ss12 ss12 ss12 ss12 22uf 100uf 22uh 0.1uf 1k 6.8k 15k 24k 47k 22uf 22uh 100uf 0.1uf 33k 1k 15k 18k 47k 22uf 22uf 22uf 1uf 0.1uf 1k 165k 15k 18k 47k 0.22uf 100pf 30k 0.1uf 0.1uf 0.33uf 1k 100k 309k 0.1uf 22uh 22uf 22uf 22uf 24k 47k 15k 1k 24k 0.1uf 22uf 22uf 22uf 22uh 24k 47k 22uf 22uf 22uh 0 10k 10k 60k 0.1uf 1k apm2301a q3 c5 1uf l6 22uh 3.3v d8 ss0520 apw7095a out1-1 out1-2 in1 fb1 out2-1 out2-2 in2 fb2 out3 fb3 in3 swout fb6 in6 out6 fb5 in5 out5-2 fb4 out4 dtc1 dtc2 dtc3 cin6 outa4 ina4 ins4 dtc4 dtc5 vcc pgnd cs vb rt ct cscp gnd vref out5-1 pvcc in4
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 1 5 f u n c t i o n d e s c r i p t i o n s g e n e r a l t h e a p w 7 0 9 5 / a p r o v i d e s v o l t a g e - m o d e f e e d b a c k c o n - t r o l s f o r s i x d c / d c p w m c o n v e r t e r s ( c h 1 t o c h 6 ) . e a c h c h a n n e l o p e r a t e s w i t h a n e r r o r a m p l i f i e r , p w m c o m p a r a t o r , s h o r t - c i r c u i t c o m p a r a t o r , o n / o f f c o n - t r o l a n d o u t p u t d r i v e r . a n i n t e r n a l t e m p e r a t u r e - c o m - p e n s a t e d v o l t a g e p r o v i d e s r e f e r e n c e v o l t a g e s f o r e a c h c h a n n e l . a n t r i a n g u l a r - w a v e o s c i l l a t o r ( c t ) w i t h a t i m - i n g r e s i s t o r a n d c a p a c i t o r g e n e r a t e s t r i a n g u l a r w a v e s t o e a c h c h a n n e l . a i n v e r t i n g a m p l i f i e r ( c h 4 ) c o o p e r - a t e s w i t h t h e e r r o r a m p l i f i e r f o r a n i n v e r t i n g c o n v e r t e r ( w i t h n e g a t i v e o u t p u t v o l t a g e ) . r e f e r e n c e v o l t a g e t h e a p w 7 0 9 5 o u t p u t s a t e m p e r a t u r e - c o m p e n s a t e d r e f e r e n c e v o l t a g e ( 2 . 4 9 v ) a t v r e f p i n . i t i s r e g u l a t e d f r o m t h e v o l t a g e a t v c c p i n a n d c a n s o u r c e c u r r e n t o f m a x . 1 m a t o e x t e r n a l l o a d s . i t a l s o s u p p l i e s b i a s f o r t h e i c ? s i n t e r n a l c i r c u i t r y . t r i a n g u l a r - w a v e o s c i l l a t o r t h e t r i a n g u l a r - w a v e o s c i l l a t o r i s d e s i g n e d t o g e n e r - a t e s a t r i a n g u l a r o s c i l l a t i o n s i g n a l ( c t ) w i t h a m p l i t u d e o f 0 . 3 v ~ 0 . 8 v a t c t p i n , p r o v i d i n g s i g n a l t o c h 6 . t h e o s c i l l a t o r f r e q u e n c y i s s e t t a b l e f r o m 1 0 0 k h z t o 1 m h z a n d s e t b y a t i m i n g r e s i s t o r a n d a t i m i n g c a p a c i t o r c o n n e c t e d r e s p e c t i v e l y f r o m r t a n d c t p i n s t o g r o u n d . a d d i t i o n a l t w o t r i a n g u l a r o s c i l l a t i o n s i g n a l s ( c t 1 a n d c t 2 ) a r e a l s o i n t e r n a l l y g e n e r a t e d w i t h a m p l i t u d e o f 1 . 1 v ~ 1 . 8 v . t h e c t 1 i s i n p h a s e w i t h t h e c t t o t h e p w m c o m p a r a t o r s o f c h 2 a n d c h 4 ; t h e c t 2 i s o u t o f p h a s e w i t h t h e c t t o t h e p w m c o m p a r a t o r s o f c h 1 , c h 3 a n d c h 5 . e r r o r a m p l i f i e r t h e e r r o r a m p l i f i e r i s d e s i g n e d w i t h u n i t - g a i n - b a n d w i d t h o f 1 m h z a n d t o s a t i s f y w i d e a p p l i c a t i o n r e q u i r e m e n t s . i t w o r k s w i t h e n t e r n a l r e s i s t o r - c a p a c i t o r n e t w o r k f o r e a c h c o n v e r t e r ? s f e e d b a c k c o m p e n s a t i o n . t h e l o o p g a i n c a n b e s e t b y c o n n e c t i n g a f e e d b a c k r e s i s t o r a n d c a p a c i t o r f r o m t h e o u t p u t p i n ( f b ) t o i n v e r t e d i n p u t p i n o f t h e e r r o r a m p l i f i e r f o r s t a b l e o p e r a t i o n s . i n v e r t i n g a m p l i f i e r ( i n v a m p ) t h e i n v e r t i n g a m p l i f i e r d e t e c t s t h e i n v e r t i n g d c / d c c o n - v e r t e r o u t p u t v o l t a g e ( a s a n e g a t i v e v o l t a g e ) a n d o u t - p u t s a c o n t r o l s i g n a l t o t h e e r r o r a m p . c h a n n e l c o n t r o l f u n c t i o n t h e c h a n n e l c o n t r o l f u n c t i o n t u r n s o n / o f f o n e o r m o r e c h a n n e l s d e p e n d i n g o n t h e s t a t e s ( ? h ? o r ? l ? l e v e l ) a t c t l , c t l 1 , 2 t o c t l 5 p i n s . t h e o n / o f f c o n t r o l l o g i c i s s h o w n a s t h e f o l l o w i n g t a b l e : voltage level at ctl pin channel on/off state ctl ctl1,2 ctl3 ctl4 ctl5 power /ch6 ch1 /ch2 ch3 ch4 ch6 l x x x x off(standby state) l off l h off on l off l h h off on on l off l h off on l off l h h h off on on on l off l h off on l off l h h off on on l off l h off on l off h h h h h on on on on on channel on/off setting table voltage level at ctl pin channel on/off state ctl ctl1,2 ctl3 ctl4 ctl5 power /ch6 ch1 /ch2 ch3 ch4 ch6 l x x x x off(standby state) l off l h off on l off l h h off on on l off l h off on l off l h h h off on on on l off l h off on l off l h h off on on l off l h off on l off h h h h h on on on on on channel on/off setting table m o s f e t d r i v e c i r c u i t s a p w 7 0 9 5 / a u s e s p u s h - p u l l c o n f i g u r a t i o n a t o u t p u t o f e a c h m o s f e t d r i v e r f o r p r o v i d i n g l a r g e d r i v e c u r r e n t t o m o s f e t g a t e . t h e f o l l o w i n g t a b l e s h o w s t h e m o s f e t s c o n n e c t e d t o t h e d r i v e r s : ic apw7095 apw7095a ch1 out1 - 1 : pmos out1 - 2 : nmos out1 - 1 : pmos out1 - 2 : nmos ch2 out2 - 1 : pmos out2 - 2 : nmos out2 - 1 : nmos out2 - 2 : pmos ch3 out3 : nmos out3 : nmos ch4 out4 : nmos out4 : pmos ch5 out5 - 1 : nmos out5 - 2 : pmos out5 - 1 : nmos out5 - 2 : pmos ch6 out6 : nmos out6 : nmos
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 1 6 (1) to (2) : ch6 soft-start interval (3) : vref output start (4) to (5) : ch1 to ch3 soft-start interval (6) to (7) : ch4, ch5 soft-start interval (6)' to (7)' : ch4(ch5) soft start interval as ctl4 (ctl5) go "h" from "l" during ch1 to ch3 soft start interval (1) (3) (2) (4) 2v ctl input vb output cin6 ch6 output voltage (vo6) vref cs ch1 to ch3 output voltages (vo1 to vo3) 0.9v 2.49v 1.25v ctl1,2 ctl3 ctl4 ctl5 1.25v t ch4 to ch5 output voltages (vo4 to vo5) (5) (6) (7) (6)' (7)' f u n c t i o n d e s c r i p t i o n s ( c o n t . ) t i m e r - l a t c h s h o r t - c i r c u i t p r o t e c t i o n c i r c u i t t h e s h o r t - c i r c u i t p r o t e c t i o n c o m p a r a t o r i n e a c h c h a n - n e l ( c h 1 t o c h 5 ) m o n i t o r s c o n v e r t e r ? s o u t p u t v o l t a g e v i a i n p u t p i n o f e r r o r a m p l i f i e r . i n c h 6 , t h e s h o r t - c i r c u i t c o m p a r a t o r d e t e c t s t h e v o l t a g e a t o u t p u t o f e r r o r a m p l i f i e r . a s a n y d e t e c t e d v o l t a g e s o f c h 1 t o c h 5 f a l l s b e l o w 1 . 0 v o r t h e d e t e c t e d v o l t a g e o f c h 6 i s l a r g e r t h a n 0 . 9 v , t h e t i m e r c i r c u i t s i s a c t u a t e d t o s t a r t c h a r g - i n g t h e e x t e r n a l c a p a c i t o r c s c p c o n n e c t e d f r o m c s c p p i n t o g r o u n d . w h e n t h e r i s i n g v o l t a g e o f c s c p r e a c h e s 0 . 7 v , t h e i c t u r n s o f f a l l e x t e r n a l m o s f e t s a n d p u l l s u p t h e v o l t a g e a t s w o u t p i n . t h e n t h e i c i s l a t c h e d . a p p l y i n g a s i g n a l f r o m ? l ? t o ? h ? t o c t l p i n e n a b l e s o p e r a t i o n a g a i n . t h e s h o r t - c i r c u i t d e t e c t i o n f u n c t i o n r e m a i n s w o r k i n g d u r i n g s o f t s t a r t o p e r a t i o n o n c h 1 t o c h 5 . u n d e r - v o l t a g e l o c k o u t ( u v l o ) c i r c u i t t h e u n d e r - v o l t a g e l o c k o u t c i r c u i t m o n i t o r s t h e s u p p l y v o l t a g e a t v c c p i n t o p r e v e n t w r o n g l o g i c c o n t r o l . t h e i c s t a r t s o p e r a t i o n a f t e r t h e s u p p l y v o l t a g e r i s e s a b o v e i t ? s r i s i n g t h r e s h o l d . a s t h e s u p p l y v o l t a g e f a l l s b e l o w i t ? s f a l l i n g t h r e s h o l d , t h e i c t u r n s o f f t h e e x t e r n a l m o s f e t s a n d p u l l s u p t h e v o l t a g e a t s w o u t p i n . s o f t - s t a r t o p e r a t i o n t h e s o f t - s t a r t f u n c t i o n c o n t r o l s t h e o u t p u t v o l t a g e r a t e o f r i s e t o l i m i t t h e c u r r e n t s u r g e a t s t a r t - u p . f o r c h 1 t o c h 5 , t h e s o f t - s t a r t i n t e r v a l i s p r o g r a m m e d b y t h e s o f t - s t a r t c a p a c i t o r , c s c o n n e c t e d f r o m c s p i n t o g r o u n d a n d c h a r g e d b y a n i n t e r n a l 1 m a c u r r e n t s o u r c e . f o r c h 6 , a s o u c i n g c u r r e n t f r o m t h e i n t e r n a l r e s i s t o r - d i v i d e r c h a r g e s t h e c a p a c i t o r , c c i n 6 c o n n e c t e d f r o m c i n 6 p i n t o g r o u n d , p r o v i d i n g s o f t - s t a r t c o n t r o l . f i g u r e 1 a n d 2 s h o w t h e s o f t - s t a r t p r o c e s s e s . i n f i g u r e 1 , w h e n a l l c o n t r o l p i n s ( c t l , c t l 1 , 2 t o c t l 5 ) a r e d r i v e n h i g h ( ? h ? l e v e l ) a t t h e s a m e t i m e , t h e v o l t a g e a t c i n 6 p i n s t a r t s t o r i s e u p b y c h a r g i n g t h e c a p a c i t o r c c i n 6 , s t a r t i n g a s o f t - s t a r t o p e r a t i o n o n c h 6 . a f t e r t h e r i s i n g v o l t a g e a t c i n 6 r e a c h e s 0 . 9 v , t h e r e f e r e n c e v o l t - a g e s t a r t s t o r e g u l a t e a n d t h e i n t e r n a l s o u r c e c u r r e n t s t a r t s t o c h a r g e t h e c s , s t a r t i n g a s o f t - s t a r t o p e r a t i o n o n c h 1 t o c h 5 . d u r i n g s o f t - s t a r t i n t e r v a l , t h e e r r o r a m p l i f i e r s c o m p a r e s t h e c h 1 t o c h 5 o u t p u t v o l t a g e t o t h e v o l t a g e a t t h e c s p i n . w h e n a n y c o n t r o l p i n s ( c h 1 , 2 t o c h 5 ) g o ? h ? f r o m ? l ? d u r i n g t h e s o f t - s t a r t i n t e r v a l ( c h 1 t o c h 5 ) , t h e o u t p u t r i s e s r a p i d l y t o f o l l o w t h e r i s i n g v o l t a g e a t c s p i n . f i g u r e 1 s o f t - s t a r t w a v e f o r m s f i g u r e 2 s o f t - s t a r t w a v e f o r m s (1) (3) t (2) (4) 2v ctl ctl1,2 ctl3 ctl4 ctl5 input vb output cin6 ch6 output voltage (vo6) vref cs ch1 to ch5 output voltages (vo1 to vo5) 0.9v 2.49v 1.25v (1) to (2) : ch6 soft-start interval (3) : vref output start (3) to (4) : ch1 to ch5 soft-start interval
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 1 7 f u n c t i o n d e s c r i p t i o n s ( c o n t . ) o u t p u t s w i t c h c o n t r o l c i r c u i t t h e o u t p u t s w i t c h c o n t r o l c i r c u i t o u t p u t s a s i g n a l t o c o n t r o l e x t e r n a l p - c h a n n e l m o s f e t s f o r p r e v e n t i n g r e a c t i v e c u r r e n t f l o w t o e x t e r n a l s t e p - u p c i r c u i t s o n c h 5 a n d c h 6 . w h e n a ? h ? l e v e l s i g n a l i s a p p l i e d t o s w i n p i n a f t e r r e l e a s i n g t h e u v l o a n d t h e v o l t a g e a t c i n 6 p i n r i s e s a b o v e 0 . 9 v ( t y p i c a l ) , t h e i c p u l l s l o w t h e v o l t a g e a t s w o u t p i n , t u r n i n g o n t h e e x t e r n a l p - c h a n n e l m o s f e t s t o g e n e r a t e o u t p u t v o l t a g e s . a p p l i c a t i o n i n f o r m a t i o n s o f t - s t a r t i n t e r v a l s e t t i n g s t h e c h 6 s o f t - s t a r t t i m e d e p e n d s o n t h e c a p a c i t o r c c i n 6 a n d i s d e t e r m i n e d a s t h e f o l l o w i n g e q u a t i o n : ? ? ? ? ? w w w - = (v) 1.26 (v) v 1 ln ) (k 100 (k 62.5 ) (k 37.5 (f) c - (s) ts ) cin6 cin6 c cin6 cin6 v cin6 vb(2v) error amp. 6 37.5k 62.5k f) ( c 0.07 (s) ts cin6 m ? t h e s o f t - s t a r t t i m e u n t i l c h 6 o u t p u t v o l t a g e r e a c h e s 9 5 % o f t h e s e t v o l t a g e i s d e t e r m i n e d a s t h e f o l l o w i n g e q u a t i o n : o n c h 1 t o c h 5 , t h e s o f t - s t a r t t i m e d e p e n d i n g o n t h e c a p a c i t o r c s d e t e r m i n e d a s t h e f o l l o w i n g e q u a t i o n : t r i a n g u l a r o s c i l l a t o r f r e q u e n c y s e t t i n g t h e t r i a n g u l a r o s c i l l a t o r f r e q u e n c y s e t b y t h e t i m i n g c a p a c i t o r ( c t ) c o n n e c t e d t o t h e c t p i n a n d t h e t i m i n g r e s i s t o r ( r t ) c o n n e c t e d t o t h e r t p i n d e t e r m i n e d a s t h e f o l l o w i n g e q u a t i o n : f) ( c 1.25 (s) ts s m ? (pf) ct ) (k rt 900000 (khz) f osc ? w o u t p u t v o l t a g e s e t t i n g s t h e o u t p u t v o l t a g e i s s e t b y t h e e x t e r n a l r e s i s t o r - d i - v i d e r c o n n e c t e d w i t h c o n v e r t e r o u t p u t , e r r o r a m p l i f i e r i n p u t , a n d g r o u n d . ( 1 ) c h 1 t o c h 3 , c h 5 in1 v o error amp. 1 1.25v r1 r2 ? ? ? ? + = r2 r1 1 1.25v (v) vo (2) c h 4 r2 r1 1.25v - (v) vo = in4 v o error amp. 4 1.25v r1 r2 inv amp. 4 r3 outa4 ina4 ( 3 ) c h 6 ? ? ? ? + = r2 r1 1 1.26v (v) vo cin6 vb(2v) error amp. 6 37.5k 62.5k in6 v o r1 r2 t i m e c o n s t a n t s e t t i n g f o r t i m e r - l a t c h s h o r t - c i r - c u i t p r o t e c t i o n c i r c u i t t h e t i m e c o n s t a n t f o r t i m e r - l a t c h s h o r t - c i r c u i t p r o t e c - t i o n i s s e t b y t h e c a p a c i t o r c s c p a n d d e t e r m i n e d a s t h e f o l l o w i n g e q u a t i o n : f) ( c 0.70 (s) t scp pe m =
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 1 8 a p p l i c a t i o n i n f o r m a t i o n ( c o n t . ) d e a d - t i m e s e t t i n g t h e d e a d - t i m e c o n t r o l p i n ( d t c ) i s d e s i g n e d t o s e t t h e m a x i m u m o n d u t y o f t h e m a i n - s i d e m o s f e t . w h e n t h e d e v i c e i s s e t f o r s t e p - u p i n v e r t e d o u t p u t b a s e d o n t h e s t e p - u p o r s t e p - u p / d o w n z e t a m e t h o d o r f l y b a c k m e t h o d , t h e f b p i n v o l t a g e m a y r e a c h a n d e x c e e d t h e t r i a n g u l a r w a v e v o l t a g e d u e t o l o a d f l u c t u a t i o n . i f t h i s i s t h e c a s e , t h e o u t p u t m o s f e t i s f i x e d t o a o n d u t y o f 1 0 0 % . t o p r e v e n t t h i s , s e t t h e m a x i m u m d u t y o f t h e o u t p u t m o s f e t . c o n n e c t i n g a r e s i s t o r - d i v i d e r b e t w e e n v r e f , d t c a n d g n d p i n s p r o v i d e s a v o l t - a g e v d t c t o d t c p i n . w h e n t h e t h e v o l t a g e a t t h e d t c p i n i s h i g h e r t h a n t h e t r i a n g u l a r w a v e v o l t a g e ( c t 1 / 2 ) , t h e o u t p u t t r a n s i s t o r i s t u r n e d o n . t h e m a x i m u m d u t y i s c a l c u l a t e d a s t h e f o l l o w i n g e q u a t i o n : dtc1 vref r1 r2 v dtc (%) 100 v 0.7 v 1.1 - v duty on dtc (max) = ref dtc v r2 r1 r2 (v) v + = w h e r e v r e f i s t h e o u t p u t o f t h e r e f e r e n c e v o l t a g e ( 2 . 4 9 v t y p i c a l ) a t v r e f p i n . t h e a m p l i t u d e o f t h e t r i a n - g u l a r w a v e s c t 1 a n d c t 2 a r e t y p i c a l l y 0 . 7 v f r o m 1 . 1 v t o 1 . 8 v .
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 1 9 l q f p - 4 8 p a c k a g e i n f o r m a t i o n millimeters inches dim min. max. min. max. a - 1.60 0 - 0.063 0 a1 0.05 0 0. 150 0.002 0 0.00 59 a2 1.400 0.05 0.05 51 0.0020 b 0.2 00typ 0.0 078typ c 0.1 2 7 typ 0.00 50typ d 7.000 0.100 0. 2756 0.0039 e 7.000 0.100 0. 2756 0.0039 e 0.500typ 0. 0196typ hd 9 .00 0 0.250 0. 3543 0.0098 he 9 .000 0.250 0. 3543 0.0098 l 0.600 0.150 0. 02 3 6 0. 00 6 l 1 1.000ref 0. 0 39 3ref y - 0.100 - 0. 0 039 q 0 7 0 7 he 24 1 12 48 37 36 25 hd a a2 a1 l1 l q 13 detail "e" c e e b "e" d
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 2 0 p a c k a g e i n f o r m a t i o n t q f n - 4 8 millimeters inches dim min. max. min. max. a 0.80 1.00 0.03 0.04 a1 0 0.05 0 0.002 a2 0 1.00 0 0.04 a3 0.20ref 0.008ref b 0.18 0.30 0.007 0.01 d 7bsc 0.28 bsc d2 4.15 5.25 0.09 0.21 e 7 bsc 0.28 bsc e2 4.15 5.25 0.09 0.21 e 0.50bsc 0.02bsc l 0.30 0.50 0.01 0.01 e d l b e2 d 2 2 1 47 48 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 1 8 6 5 4 3 2 7 9 10 11 12 36 29 31 32 33 34 35 30 28 27 26 25 a3 a a1 e a2
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 2 1 ( m m ) p h y s i c a l s p e c i f i c a t i o n s t 25 c to peak tp ramp-up t l ramp-down ts preheat tsmax tsmin t l t p 25 temperature time critical zone t l to t p terminal material solder - plated copper (solder material : 90/10 or 63/37 snpb) , 100%sn lead solderability meets eia specification rsi86 - 91, ansi/j - std - 002 category 3. r e f l o w c o n d i t i o n ( i r / c o n v e c t i o n o r v p r r e f l o w ) c l a s s i f i c a t i o n r e f l o w p r o f i l e s profile feature sn - pb eutectic assembly pb - free assembly average ramp - up rate (t l to t p ) 3 c/second max. 3 c/second max. preheat - temperature min (tsmin) - temperature max (tsmax) - time (min to max) (ts) 100 c 150 c 60 - 120 seconds 150 c 200 c 60 - 180 seconds time maintained above: - temperature (t l ) - time (t l ) 183 c 60 - 150 seconds 217 c 60 - 150 seconds peak /classificatioon temperature (tp) see table 1 see table 2 time within 5 c of actual peak temperature (tp) 10 - 30 seconds 20 - 40 seconds ramp - down rate 6 c/se cond max. 6 c/second max. time 25 c to peak temperature 6 minutes max. 8 minutes max. notes: all temperatures refer to topside of the package .measured on the body surface.
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 2 2 test item method description solderability mil - std - 883d - 2003 245 c, 5 sec holt mil - std - 883d - 1005.7 1000 hrs bias @125 c pct jesd - 22 - b,a102 168 hrs, 100 % rh, 121 c tst mil - std - 883d - 1011.9 - 65 c~150 c, 200 cycles esd mil - std - 883d - 3015.7 vhbm > 2kv, vmm > 200v latch - up jesd 78 10ms, 1 tr > 100ma r e l i a b i l i t y t e s t p r o g r a m table 1. snpb entectic process ? package peak reflow temperature s package thickness volume mm 3 <350 volume mm 3 3 350 <2.5 mm 240 +0/ - 5 c 225 +0/ - 5 c 3 2.5 mm 225 +0/ - 5 c 225 +0/ - 5 c table 2. pb - free process ? package classification reflow temperatures package thickness volume mm 3 <350 volume mm 3 350 - 2000 volume mm 3 >2000 <1.6 mm 260 +0 c* 260 +0 c* 260 +0 c* 1.6 mm ? 2.5 mm 260 +0 c* 250 +0 c* 245 +0 c* 3 2.5 mm 250 +0 c* 245 +0 c* 245 +0 c* *tolerance: the device manufacturer/supplier shall assure process compatibility up to and including the stated classification temperature (this means peak reflow temperature +0 c. for example 260 c+0 c) at the rated msl level. c l a s s i f i c a t i o n r e f l o w p r o f i l e s ( c o n t . ) 7 x 7 m m s h i p p i n g t r a y
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - j u l . , 2 0 0 5 a p w 7 0 9 5 / a w w w . a n p e c . c o m . t w 2 3 a n p e c e l e c t r o n i c s c o r p . h e a d o f f i c e : 5 f , n o . 2 l i - h s i n r o a d , s b i p , h s i n - c h u , t a i w a n , r . o . c . t e l : 8 8 6 - 3 - 5 6 4 2 0 0 0 f a x : 8 8 6 - 3 - 5 6 4 2 0 5 0 t a i p e i b r a n c h : 7 f , n o . 1 3 7 , l a n e 2 3 5 , p a c c h i a o r d . , h s i n t i e n c i t y , t a i p e i h s i e n , t a i w a n , r . o . c . t e l : 8 8 6 - 2 - 8 9 1 9 1 3 6 8 f a x : 8 8 6 - 2 - 8 9 1 9 1 3 6 9 c u s t o m e r s e r v i c e 7 x 7 m m s h i p p i n g t r a y ( c o n t . )

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