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type package type package tle 4263 gs pg-dso-8-16 tle 4263 gm pg-dso-14-30 tle 4263 g pg-dso-20-35 5-v low drop voltage regulator tle 4263 ^ p-dso-14-3, -8, -9, -11, 14 p-dso-20-1, -6, -7, -9, -14, -15, -17, - p /pg -dso-8-3, -6, -7, -8, -9, data sheet 1 rev. 2.8, 2007-03-20 features ? output voltage tolerance 2% 200 ma output cu rrent capability low-drop voltage very low standby cu rrent consumption overtemperature protection reverse polarity protection short-circuit proof adjustable reset threshold watchdog wide temperature range suitable for use in automotive electronics green product (rohs compliant) aec qualified functional description tle 4263 is a 5-v low drop voltage regulator in a smd package pg-dso-14-30, pg-dso-20-35, or pg-dso-8-16. the maximum in put voltage is 45 v. the maximum output current is more than 200 ma. the ic is short-circuit proof and in corporates temperature protection which turns off the ic at overtemperature. the ic regulates an input voltage v i in the range of 6 v < v i < 45 v to v q,nom = 5.0 v. a reset signal is generated for an output voltage of v q,rt < 4.5 v. this voltage threshold can be decreased to 3.5 v by external connection of a voltage divider. the reset delay can be set externally by a capacitor. the integrated watchdog logic supervises the c onnected microcontroller. the ic can be switched off via the inhibit input, which causes the current consumpti on to drop from 900 a to typical 0 a.
data sheet 2 rev. 2.8, 2007-03-20 tle 4263 choosing external components the input capacitor c i is necessary for compensation of line influences. using a resistor of approx. 1 ? in series with c i , the oscillating circuit consis ting of input inductivity and input capacitance can be damped . the output capacitor is ne cessary for the stability of the regulating circuit. stability is guaranteed at values 22 f and an esr of 3 ? within the operating temperat ure range. for small toleranc es of the reset delay the spread of the capacitance of the delay capacitor and its temperature coefficient should be noted. figure 1 pin configuration (top view) 10 9 i 1 2 3 4 5 6 7 14 13 12 11 aep03067 8 gnd gnd gnd w n.c. gnd gnd gnd d radj ro q inh tle 4263 gm tle 4263 gs tle 4263 g d radj w gnd 5 6 7 ro 8 4 3 2 1 aep01668_4263 q inh i 1 4 3 2 5 6 7 8 9 10 20 17 18 19 16 15 14 13 12 11 inh gnd v i n.c. gnd gnd gnd n.c. v q w n.c. gnd ro n.c. gnd gnd gnd n.c. d radj aep01099_4263
tle 4263 data sheet 3 rev. 2.8, 2007-03-20 table 1 pin definitions and functions pin pg-dso-14 -30 pin pg-dso-20- 35 pin pg-dso-8 -16 symbol function 13 3ro reset output; open-collector output connected to the output via a resistor of 30 k ? . 2 1, 2, 19, 13 ? n.c. not connected 3 - 5, 10 - 12 4-7, 14-17 4 gnd ground 69 5d reset delay; connected to ground with a capacitor. 7 10 6 radj reset threshold; to adjust the switching threshold connect a voltage divider (output to gnd) to the pin. if this in put is connected to gnd, reset is triggered at an output voltage of 4.5 v. 8117w watchdog; rising edge triggered input for monitoring a microcontroller. 9128q 5-v output voltage; block to ground with a capacitor, c 22 f, esr 3 ? at 10 khz 13 18 1 i input voltage; block to ground directly at the ic with a ceramic capacitor. 14 20 2 inh inhibit; ttl-compatible, low-active input.
data sheet 4 rev. 2.8, 2007-03-20 tle 4263 circuit description the control amplifier compares a reference voltage, which is ke pt highly accurate by resistance adjustment, to a voltage that is proportional to the output voltage and drives the base of the series transist or via a buffer. satu ration control as a function of the load current prevents any over-saturation of the pow er element. if the ex ternally scaled down output voltage at the reset th reshold input drops below 1.35 v, the external reset delay capacitor is discharged by th e reset generator. when t he voltage of the capacitor reaches the lower threshold v drl , a reset signal occurs at the reset output and is held until the upper threshold v du is exceeded. if the reset threshold input is connected to gnd, reset is triggered at an output voltage of typ. 4.65 v. a connected microcontroller will be monitored through the watchdog logic. in case of missing pulses at pin w, the reset output is set to low. the pulse sequenc e time can be set in a wide range with the reset delay capacitor. the ic can be switched at the ttl-compatible, low-active inhibit input. the ic also incorporat es a number of internal circ uits for protection against: overload overtemperature reverse polarity figure 2 block diagram input aeb03068 inh gnd output d ro radj reset delay reset output reset threshold watchdog w temperature sensor generator reset reference bandgap adjustment buffer control amplifier saturation control and protection circuit inhibit q gnd
tle 4263 data sheet 5 rev. 2.8, 2007-03-20 table 2 absolute maximum ratings parameter symbol limit values unit remarks min. max. input i input voltage input current v i i i -42 ? 45 ? v ? ? internally limited reset output ro voltage current v r i r -0.3 ? 42 ? v ? ? internally limited reset threshold radj voltage v radj -0.3 6 v ? reset delay d voltage current v d i d -0.3 ? 42 ? v ? ? internally limited output q voltage current v q i q -0.3 ? 7 ? v ? ? internally limited inhibit inh voltage v inh -42 45 v ? watchdog w voltage v w -0.3 6 v ? ground gnd current i gnd -0.5 ? a ? temperature junction temperature storage temperature t j t stg ? -50 150 150 c c ? ? operating range input voltage v i ?45v? junction temperature t j -40 150 c?
data sheet 6 rev. 2.8, 2007-03-20 tle 4263 thermal resistance junction-ambient r thj-a ? ? ? ? 112 92 185 164 k/w k/w k/w k/w pg-dso-14-30 1) ; footprint only pg-dso-14-30 1) ; 300 mm 2 heat sink pg-dso-8-16 1) ; footprint only pg-dso-8-16 1) ; 300 mm 2 heat sink junction-pin r thj-p ? 32 k/w pg-dso-14-30 2) 1) worst case; package mounted on pcb 80 80 1.5 mm 3 ; 35 cu; 5 sn; zero airflow. 2) measured to pin 4. table 2 absolute maximum ratings (cont?d) parameter symbol limit values unit remarks min. max.
tle 4263 data sheet 7 rev. 2.8, 2007-03-20 table 3 characteristics v i = 13.5 v; -40 c < t j < 125 c; v inh > 3.5 v; (unless specified otherwise) parameter symbol limit values unit test condition min. typ. max. normal operation output voltage v q 4.90 5.00 5.10 v 5 ma i q 150 ma; 6 v v i 28 v output voltage v q 4.90 5.00 5.10 v 6 v v i 32 v; i q = 100 ma; t j = 100 c output current i q 200 250 400 ma 1) current consumption; i q = i i - i q i q i q i q i q ? ? ? ? 0 900 10 15 50 1300 18 23 a a ma ma v inh = 0 i q = 0 ma i q = 150 ma i q = 150 ma; v i = 4.5 v drop voltage v dr ? 0.350.50v i q = 150 ma 1) load regulation ? v q,lo ??25mv i q = 5 ma to 150 ma line regulation ? v q.li ?325mv v i = 6 v to 28 v; i q = 150 ma power supply ripple rejection psrr ?54?db f r = 100 hz; v r = 0.5 vpp reset generator switching threshold v q,rt 4.5 4.65 4.8 v v radj = 0 v reset adjust threshold v radj,th 1.26 1.35 1.44 v v q > 3.5 v reset low voltage v ro,l ? 0.100.40v i ro = 1 ma saturation voltage v d,sat ? 50 100 mv v q < v r,th upper timing threshold v du 1.45 1.70 2.05 v ? lower reset timing threshold v drl 0.20 0.35 0.55 v ? charge current i d,ch 40 60 85 a? reset delay time t rd 1.3 2.8 4.1 ms c d = 100 nf reset reaction time t rr 0.5 1.2 4 s c d = 100 nf
data sheet 8 rev. 2.8, 2007-03-20 tle 4263 note: the reset output is low within the range v q = 1 v to v q,rt . watchdog discharge current i d,wd 4.40 6.25 9.10 a v d = 1.0 v upper timing threshold v du 1.45 1.70 2.05 v ? lower timing threshold v dwl 0.20 0.35 0.55 v ? watchdog trigger time t wi,tr 16 22.5 27 ms c d = 100 nf inhibit switching voltage v inh,on 3.6 ? ? v ic turned on turn-off voltage v inh,off ? ? 0.8 v ic turned off input current i inh 51025 a v inh = 5 v 1) drop voltage = v i - v q (measured when the output voltage has dropped 100 mv from the nominal value obtained at 6 v input). table 3 characteristics (cont?d) v i = 13.5 v; -40 c < t j < 125 c; v inh > 3.5 v; (unless specified otherwise) parameter symbol limit values unit test condition min. typ. max.
tle 4263 data sheet 9 rev. 2.8, 2007-03-20 figure 3 application circuit figure 4 test circuit aes03069 22 f gnd d ro 470 nf inh 100 nf output kl 15 to mc input reset tle 4263g w watchdog from mc q radj 6 v...45 v 100 k ? 56 k ? aes03070_4263 22 f q rd v radj ? 5.6 k d ro inh e 1000 f 470 nf v e d c v c gnd d, ch v ro q v v tle 4263g gnd w v w radj 100 nf q v r + psrr = 20 log v r q, r v ?
data sheet 10 rev. 2.8, 2007-03-20 tle 4263 reset timing the power-on reset delay time is defined by the char ging time of an external capacitor c d which can be calculated as follows: c d = ( t rd i d,ch )/ ? v (1) definitions: c d = delay capacitor t rd = reset delay time i d,ch = charge current, typical 60 a ? v = v du , typical 1.70 v v du = upper delay swit ching threshold at c d for reset delay time figure 5 time response, watchdo g with high-fre quency clock aet03066 i v v q q, rt v v d du v v drl ro v rd t t rr < rr t v d t d = d, ch i d c power-on reset over- temperature at input voltage drop under- voltage spike secondary bounce load t t t t
tle 4263 data sheet 11 rev. 2.8, 2007-03-20 reset switching threshold the present default value is typ. 4.65 v. when using the tle 426 3 the reset threshold can be set to 3.5 v < v q,rt < 4.6 v by connecting an exter nal voltage divider to pin radj. the calculation can be easily done since the reset adjust input current can be neglected. if this feature is not needed, th e pin has to be co nnected to gnd. v q,rt = (1 + r 1 / r 2 ) v radj,th (2) definitions: v q,rt = reset threshold v radj,th = comparator reference voltage, typical 1.35 v watchdog timing the frequency of the watc hdog pulses has to be higher than the minimum pulse sequence which is set by the ex ternal reset delay capacitor c d . calculation can be done according to the formula given in figure 6 . figure 6 timing of the watchdog function reset aed03099_4263 w v v v q d v v ro wd, l t wd, p t wi, tr t t = v v ( du - dwl ) d, wd du v v dwl wi, tr d c t t t t t
data sheet 12 rev. 2.8, 2007-03-20 tle 4263 reset switching th reshold versus output voltage reset switching th reshold versus temperature timing threshold voltage v du and v drl versus temperature current consumption of inhibit versus temperature 0.8 0.4 0.6 0.2 1 0 2 0 1.6 1.2 1.4 1.0 radj v v v 4 3 5 v q aed01098_4263 v = 13.5 v aed01088 -40 04080 120 ?c 160 0 j t radj v 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 v aed03062 -40 0 i v = 13.5 v 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 v 04080 120 160 ?c v t j v drl du v aed03063 v inh = 5 v a inh i 80 -40 4 2 0 6 8 40 0 10 12 14 16 160 ?c 120 t j
data sheet 13 rev. 2.8, 2007-03-20 tle 4263 drop voltage versus output current current consumption versus input voltage current consumption versus output current output voltage versus input voltage aed03060_4263 0 0 q i 50 100 150 200 300 ma 100 200 300 400 500 600 700 800 mv v dr j t = 125 ?c 25 ?c 15 10 5 20 010 0 20 ma 30 25 q = 25 r l 50 v 30 40 v aed01096 ? aed03061 0 0 q i q i 50 100 150 200 300 i v = 13.5 v ma 4 8 12 16 20 24 28 32 ma r 6 4 2 0 4 0 2 8 12 10 q v v 10 v 68 v aed01097 = 25 l ?
data sheet 14 rev. 2.8, 2007-03-20 tle 4263 charge current and discharge current versus temperature pulse time versus temperature output voltage versus temperature output current versus input voltage 40 20 30 10 0 -40 40 0 80 60 70 50 a c 120 80 160 t j aed03064 = 13.5 v = 1.5 v v v d d, ch d, dis 20 10 15 5 0 -40 40 0 40 30 35 25 wi,tr t c 120 80 160 t j aed03065_4263 ms v = 13.5 v = 100 nf c d aed01090 -40 04080 120 ?c 160 4.6 j t q v v i = 13.5 v 4.7 4.8 4.9 5.0 5.1 v 5.2 t 10 0 0 50 100 20 250 300 q ma 200 150 v 40 30 v 50 = 25 c j aed01091
tle 4263 data sheet 15 rev. 2.8, 2007-03-20 package outlines figure 7 pg-dso-14-30 (plastic dual small outline) green product (rohs compliant) to meet the world-wi de customer requirements for envi ronmentally friendly products and to be compliant with government regula tions the device is available as a green product. green products are ro hs-compliant (i.e pb-free fi nish on leads and suitable for pb-free soldering according to ipc/jedec j-std-020). 1) does not include plastic or metal protrusion of 0.15 max. per side 2) lead width can be 0.61 max. in dambar area -0.2 8.75 1) 0.64 0.19 +0.06 index marking 1.27 +0.10 0.41 0.1 1 14 2) 7 14x 8 0.175 (1.47) 0.07 0.2 6 0.35 x 45? -0.2 1.75 max. 4 1) 0.25 8?max. -0.06 0.2 m ab m 0.2 c c b a gps01230 you can find all of our packages, sorts of packing and others in our infineon internet page ?products?: http://www.infineon.com/products . dimensions in mm smd = surface mounted device
data sheet 16 rev. 2.8, 2007-03-20 tle 4263 figure 8 pg-dso-20-35 (plastic dual small outline) green product (rohs compliant) to meet the world-wi de customer requirements for envi ronmentally friendly products and to be compliant with government regula tions the device is available as a green product. green products are ro hs-compliant (i.e pb-free fi nish on leads and suitable for pb-free soldering according to ipc/jedec j-std-020). -0.2 index marking 1 10 +0.15 0.35 0.2 0.2 20 2) 11 20x 2.45 2.65 max. 0.1 10.3 -0.1 -0.2 7.6 0.3 1) does not include plastic or metal protrusion of 0.15 max. per side 2) 1) does not include dambar protrusion of 0.05 max. per side 1.27 0.23 +0.09 max. 8? 0.35 x 45? +0.8 0.4 12.8 -0.2 1) gps05094 you can find all of our packages, sorts of packing and others in our infineon internet page ?products?: http://www.infineon.com/products . dimensions in mm smd = surface mounted device
tle 4263 data sheet 17 rev. 2.8, 2007-03-20 figure 9 pg-dso-8-16 (plastic dual small outline) green product (rohs compliant) to meet the world-wi de customer requirements for envi ronmentally friendly products and to be compliant with government regula tions the device is available as a green product. green products are ro hs-compliant (i.e pb-free fi nish on leads and suitable for pb-free soldering according to ipc/jedec j-std-020). 1) does not include plastic or metal protrusion of 0.15 max. per side -0.06 -0.2 +0.1 5 0.41 8x 1 1) 4 8 1.27 5 a 0.1 0.2 m a (1.45) 0.175 1.75 max. b b 6 0.2 0.64 4 -0.2 0.19 +0.06 0.35 x 45 1) 0.25 max. 8 index marking 0.07 2) lead width can be 0.61 max. in dambar area gps01229 you can find all of our packages, sorts of packing and others in our infineon internet page ?products?: http://www.infineon.com/products . dimensions in mm smd = surface mounted device
tle 4263 revision history data sheet 18 rev. 2.8, 2007-03-20 version date changes rev. 2.8 2007-03-20 initial version of rohs-compliant derivate of tle 4263 page 1 : aec certified statement added page 1 and page 15 ff:rohs compliance statement and green product feature added page 1 and page 15 ff: package changed to rohs compliant version legal disclaimer updated
edition 2007-03-20 published by infineon technologies ag 81726 munich, germany ? 2007 infineon technologies ag all rights reserved. legal disclaimer the information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. with respect to any examples or hints given herein, any typical valu es stated herein and/or any information regarding the application of the device, infineon technologies her eby disclaims any and all warranties and liabilities of any kind, including wi thout limitation, warranties of non-infrin gement of intellectual property rights of any third party. information for further information on technology, delivery terms an d conditions and prices, please contact the nearest infineon technologies office ( www.infineon.com ). warnings due to technical requirements, components may contain dangerous substances. for information on the types in question, please contact the near est infineon technologies office. infineon technologies components may be used in life-supp ort devices or systems only with the express written approval of infineon technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safe ty or effectiveness of that device or system. life support devices or systems are intended to be implanted in the hu man body or to support and/or maintain and sustain and/or protect human life. if they fail, it is reasonable to assume that the health of the user or other persons may be endangered.

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