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type package marking tle 6365 g pg-dso-8 6365g step down voltage regulator with reset tle 6365 p /pg -dso-8-3, -6, -7, -8, -9 data sheet 1 rev. 1.9, 2007-07-30 features ? step down converter supply over- and un der-voltage-lockout low output voltage tolerance output overvoltage lockout output under-voltage-reset with delay overtemperature shutdown wide ambient oper ation range -40 c to 125 c wide supply voltage operation range very low current consumption very small pg-dso-8 smd package green product (rohs compliant) aec qualified functional description the tle 6365 g is a power supply circuit es pecially designed for automotive applications. the device is based on infi neon?s power technology spt ? which allows bipolar and cmos control circuitry to be integrat ed with dmos power devices on the same monolithic circuitry. the tle 6365 g contains a buck converter and a powe r on reset featur e to start up the system the very small pg-dso-8 smd package meets the application requirements. it delivers a precise 5 v fully shor t circuit protected output voltage. furthermore, the build-in feat ures like under- and overvolt age lockout for supply- and output-voltage and the overtem perature shutdown feature incr ease the reliabi lity of the tle 6365 g supply system.
data sheet 2 rev. 1.9, 2007-07-30 tle 6365 pin configuration figure 1 pin configuration (top view) table 1 pin definitions and functions pin no. symbol function 1r reference input; an external resistor from this pin to gnd determines the reference current and so the o scillator / switching frequency. 2ro reset output; open drain output from re set comparator with an internal pull-up resistor 3buc buck-converter compensation input; output of internal error amplifier; for loop-compensation an d therefore stability connect an external r - c -series combination to gnd. 4gnd ground; analog si gnal ground 5 v cc output voltage input; feedback input (with integrated resistor divider) and logic supply input; external blocking capacitor necessary 7buo buck converter output; source of the in tegrated power-dmos 6bds buck driver supply input; voltage to drive the buck converter powerstage 8 v s supply voltage input; buck converter input voltage; external blocking capacitor necessary. a e p03319 .v s d 1 r 2 ro 3 buc 4 gnd 8 7 6 5 v s buo bds v cc tle 6365 g
tle 6365 data sheet 3 rev. 1.9, 2007-07-30 block diagram figure 2 block diagram aea03315.vsd tle 6365 g biasing and v ref gnd 4 8 5 v cc buck converter 7 buo buc 3 6 bds v internal reference current generator and oscillator undervoltage reset generator 2 ro r 1 v s
data sheet 4 rev. 1.9, 2007-07-30 tle 6365 note: stresses above those lis ted here may cause permanen t damage to the device. exposure to absolute maximu m rating conditions for ex tended periods may affect device reliability. table 2 absolute maximum ratings parameter symbol limit values unit remarks min. max. voltages supply voltage v s -0.3 46 v ? buck output voltage v buo -1 46 v ? buck driver supply voltage v bds -0.3 48 v 0c t j 150c -0.3 47 v -40c t j < 0c buck compensation input voltage v buc -0.3 6.8 v ? logic supply voltage v cc -0.3 6.8 v ? reset output voltage v ro -0.3 6.8 v ? current reference voltage v r -0.3 6.8 v ? esd-protection (human body model; r = 1.5 k ? ; c = 100 pf) all pins to gnd v hbm -2 2 kv ? temperatures junction temperature t j -40 150 c? storage temperature t stg -50 150 c?
tle 6365 data sheet 5 rev. 1.9, 2007-07-30 table 3 operating range parameter symbol limit values unit remarks min. max. supply voltage v s -0.3 40 v ? supply voltage v s 535v v s increasing supply voltage v s 4.5 36 v v s decreasing supply voltage v s -0.3 4.5 v buck-converter off buck output voltage v buo -0.6 40 v ? buck driver supply voltage v bds -0.3 48 v 0c t j 150c -0.3 47 v -40c t j < 0c buck compensation input voltage v buc 03.0v? logic supply voltage v cc 4.0 6.2 v ? reset output voltage v ro -0.3 v cc + 0.3 v ? current reference voltage v cref 01.23v? junction temperature t j -40 150 c? thermal resistance junction ambient r thj-a ? 180 k/w ?
data sheet 6 rev. 1.9, 2007-07-30 tle 6365 table 4 electrical characteristics 8 v < v s < 35 v; 4.75 v < v cc < 5.25 v; -40 c < t j < 150 c; r r = 47 k ? ; all voltages with respect to ground; positive current def ined flowing into the pin; unless otherwise specified parameter symbol limit values unit test condition min. typ. max. current consumption current consumption; see figure 6 i s ? 1.5 4 ma i cc = 0 ma current consumption; see figure 6 i s ? 510ma i cc = 400 ma under- and over-voltage lockout at v s uv on voltage; buck conv. on v suvon 4.0 4.5 5.0 v v s increasing uv off voltage; buck conv. off v suvoff 3.5 4.0 4.5 v v s decreasing uv hysteresis voltage v suvhy 0.2 0.5 1.0 v hy = on - off ov off voltage; buck conv. off v sovoff 34 37 40 v v s increasing ov on voltage; buck conv. on v sovon 30 33 36 v v s decreasing ov hysteresis voltage v suvhy 1.5 4 10 v hy = off - on over-voltage lockout at v cc ov off voltage; buck conv. off v ccovoff 5.5 6.0 6.5 v v cc increasing ov on voltage; buck conv. on v ccovon 5.25 5.75 6.25 v v cc decreasing ov hysteresis voltage v ccovhy 0.10 0.25 0.50 v hy = off - on
tle 6365 data sheet 7 rev. 1.9, 2007-07-30 buck-converter; buo, bds, buc and v cc logic supply voltage v cc 4.9 ? 5.1 v 1 ma < i cc < 400 ma; see figure 6 efficiency; see figure 6 ?85? % i cc = 400 ma; v s = 14 v power-stage on resistance r buon ?0.380.5 ? t j = 25 c; i buo = 0.6 a power-stage on resistance r buon ?? 1.0 ? i buo = 0.6 a buck overcurrent threshold i buoc 0.7 0.9 1.2 a ? input current on pin v cc i cc ?? 500 a v cc = 5 v buck gate supply voltage; v bgs = v s - v bds v bgs 57.210v? reference input; r (oscillator; time base for buck-converter and reset) voltage on pin r v r ?1.4? v r r = 100 k ? oscillator frequency f osc 85 95 105 khz t j = 25 c oscillator frequency f osc 75 ? 115 khz ? cycle time for reset timing t cyl ?1 ? ms t cyl = 100 / f osc table 4 electrical characteristics (cont?d) 8 v < v s < 35 v; 4.75 v < v cc < 5.25 v; -40 c < t j < 150 c; r r = 47 k ? ; all voltages with respect to ground; positive current def ined flowing into the pin; unless otherwise specified parameter symbol limit values unit test condition min. typ. max.
data sheet 8 rev. 1.9, 2007-07-30 tle 6365 reset generator; ro reset threshold; v cc decreasing v rt 4.50 4.65 4.75 v v ro h to l or l to h transition; v ro remains low down to v cc > 1 v reset low voltage v rol ?0.20.4v i rol = 1 ma; 2.5 v < v cc < v rt reset low voltage v rol ?0.20.4v i rol = 0.2 ma; 1v < v cc < v rt reset high voltage v roh v cc - 0.1 ? v cc + 0.1 v i roh = 0 ma reset pull-up current i ro ?240? a 0 v < v ro < 4 v reset reaction time t rr 10 40 90 s v cc < v rt power-up reset delay time t rd ?128? t cyl v cc 4.8 v thermal shutdown (boost and buck-converter off) thermal shutdown junction temperature t jsd 150 175 200 c? thermal switch-on junction temperature t jso 120 ? 170 c? temperature hysteresis ? t ?30? k? table 4 electrical characteristics (cont?d) 8 v < v s < 35 v; 4.75 v < v cc < 5.25 v; -40 c < t j < 150 c; r r = 47 k ? ; all voltages with respect to ground; positive current def ined flowing into the pin; unless otherwise specified parameter symbol limit values unit test condition min. typ. max.
tle 6365 data sheet 9 rev. 1.9, 2007-07-30 circuit description below some importan t sections of the tle 6365 are described in more detail. power on reset in order to avoid any system failure, a sequence of several conditions has to be passed. in case of v cc power down ( v cc < v rt for t > t rr ) a logic low signal is generated at the pin ro to reset an external micr ocontroller. when the level of v cc reaches the reset threshold v rt , the signal at ro remains low for the po wer-up reset delay time t rd before switching to high. if v cc drops below the reset threshold v rt for a time extending the reset reaction time t rr , the reset circuit is activat ed and a power down sequence of period t rd is initiated. the reset reaction time t rr avoids wrong triggeri ng caused by short ?glitches? on the v cc -line. figure 3 reset function aet03325.vsd invalid invalid start up invalid v cc t v pg v rt typ. 4.70 v typ. 4.65 v 1 v < t rr < t rd t ro on delay h l started on delay stopped t rd t rr t rd on delay power start-up normal failed n failed normal
data sheet 10 rev. 1.9, 2007-07-30 tle 6365 buck converter a stabilized logic supply volt age (typ. 5 v) for general purpose is realized in the system by a buck converter. an external buck-inductance l bu is pwm switched by a high side dmos power transistor with t he programmed frequency (pin r). the buck converter uses the temperature co mpensated bandgap refe rence voltage (typ. 2.8 v) for its regulation loop. this reference voltage is connected to the non-inverting input of th e error amplifier and an internal voltage divider supplies the inverting input. therefore the ou tput voltage v cc is fixed due to the internal resistor ratio to typ. 5.0 v. the output of the error amplif ier goes to the inverting in put of the pwm comparator as well as to the buck co mpensation output buc. when the error amplifie r output voltage exce eds the sawtooth voltag e the output power mos-transistor is switched on. so the duration of the output transistor conduction phase depends on the v cc level. a logic signal pwm with variable pul se width is generated. external loop compensation is required for converter stability, and is formed by connecting a compensation resist or-capacitor series-network ( r buc , c buc ) between pin buc and gnd. in the case of overload or short-circuit at v cc (the output curre nt exceeds the buck overcurrent threshold i buoc ) the dmos output transisto r is switched off by the overcurrent comparator immediately. in order to protect the v cc input as well as the external load against catastrophic failures, an overvoltage protection is provided which sw itches off the output transistor as soon as the voltage at pin v cc exceeds the internal fi xed overvoltage threshold v ccovoff = typ. 6.0 v. also a battery underv oltage protection is implemented in the tle 6365 to avoid wrong operation of the following supp lied devices, the typical th reshold when decreasing the battery voltage is at v suvoff = typ. 4.0 v.
tle 6365 data sheet 11 rev. 1.9, 2007-07-30 figure 4 buck converter block diagram aea03316.vsd t f t r t r t f oscillator t r t r schmitt-trigger 1 v max v min v high v low t t ramp r pin 1 & & r q s off when h q clock >1 _ error-ff l when t j > 175c r vcc2 28 ? r vcc1 22 ? error amp. gnd v ref 2.8 v v cc pin 5 v cc buc pin 3 r prot1 error-signal error-ramp pwm comp. h when error-signal < error-ramp output stage off when h nor1 gnd l when overcurrent & nand 2 & & r q s h = off q pwm-ff 1 inv h = on gate driver gate driver supply power d-mos buo pin 7 bds pin 6 oc comp. = r sense 18 m ? v thoc 18 mv v s pin 8 r vcc4 10.3 ? r vcc3 39.7 ? ov comp. = gnd v thov 1.2 v v cc gnd uv comp. = gnd v thuv 4 v 200 ? h when ov at v cc h when uv at v boost
data sheet 12 rev. 1.9, 2007-07-30 tle 6365 figure 5 most important waveforms of the buck converter circuit aed02673_6365 t o v error v and v min max v t l h oclk pwm l h t t i buo buoc i dbu i t buo v t s v cc v overcurrent threshold exceeded controlled by the load-current increasing with time; error voltage overcurrent comp controlled by the error amp
tle 6365 data sheet 13 rev. 1.9, 2007-07-30 application circuit t figure 6 application circuit aea03310.vsd tle 6365 g biasing and v ref gnd 4 8 v cc buck converter buo 3 bds v internal reference current generator and oscillator undervoltage reset generator ro r 1 r r 100 k ? r co 47 k ? c co 470 nf buc 5 7 6 2 dbu l bu 220 h + v cc reset output c bu1 100 f c bu2 220 nf v s zd1 36 v + c s 220 nf c l 10 f d1 v batt c bot 10 nf d1 device dbu l bu l bu 200 v; 1 a; sot89 remarks 220 h; 0.8 a; 0.53 ? 220 h; 0.8 a; 0.61 ? schottky; 100 v; 1 a infineon supplier - epcos coilcraft baw78c type ss14 b82476-a1224-m do3316p-224
data sheet 14 rev. 1.9, 2007-07-30 tle 6365 diagrams: oscillator and boos t/buck-converter performance in the following the behaviour of the boost/buck-converter and the oscillator is shown. efficiency buck vs. boost voltage feedback voltage vs. junction temperature oscillator frequency deviation vs. junction temperature buck overcurrent threshold vs. junction temperature aed03017 s v 65 5 15 25 v 30 70 75 80 85 90 % 95 v cc = 5 v load i = 120 ma 80 ma 40 ma aed03356.vsd 4.80 c 4.85 4.90 4.95 5.00 5.05 5.10 5.15 t j v v cc -50 -25 0 25 50 75 100 150 i buo = 400 ma aed03016 j t -15 ? f osc -10 -5 0 5 khz 10 -50 -25 0 25 50 75 100 ?c 150 j t = 25 ?c referred to f osc at aed03018 -50 j t -25 0 25 50 75 100 ?c 150 0.8 i oc 0.9 1 1.1 1.2 1.3 1.4 a (buck-converter) i buoc
data sheet 15 rev. 1.9, 2007-07-30 tle 6365 current consumption vs. junction temperature efficiency buck vs. load oscillator frequency vs. resistor between r and gnd buck on resistance vs. junction temperature aed02940 j t 0.5 1 1.5 2 2.5 ma 3 -50 -25 0 25 50 75 100 ?c 150 boost i boost on buck on bo boost i = 0 ma = 0 ma cc i aed02942 load i 50 150 250 ma 65 70 75 80 85 % 90 rt, ht ct aed02982 r 5 10 20 50 100 200 500 1000 osc f r 10 20 50 100 200 k 1000 ? j t = 25 ?c @ khz aed03355.vsd -50 t j c 0 100 300 500 700 200 400 600 800 1000 -25 0 25 50 75 100 150 r buon @ i buo = 600 ma m ? r on
data sheet 16 rev. 1.9, 2007-07-30 tle 6365 package outlines figure 7 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 6365 data sheet 17 rev. 1.9, 2007-07-30 revision history version date changes rev. 1.9 2007-07-30 initial version of rohs-compliant derivate of tle 6365 page 1 : aec certified statement added page 1 and page 16 :rohs compliance statement and green product feature added page 1 and page 16 : package changed to rohs compliant version legal disclaimer and in fineon logo updated
edition 2007-07-30 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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