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TLE4250-2 low dropout voltage tracking regulator data sheet, rev. 1.0, july 2007 automotive power
pg-sct595-5 type package marking TLE4250-2g pg-sct595-5 52 data sheet 2 rev. 1.0, 2007-07-24 low dropout voltage tracki ng regulator TLE4250-2 1overview features ? 50 ma output current capability ? tiny smd-package pg -sct595-5 with lowest thermal resistance ? low output tracking tolerance ? stable with small ceramic output capacitor ? low dropout voltage ? combined reference / enable input ? low current consumption in stand-by mode ? maximum input voltage -42 v v i +45 v ? reverse polarity protection ? output short circuit proof to ground and supply ? overtemperature protection ? temperature range -40 c t j 150 c ? green product (rohs compliant) ? aec qualified functional description the TLE4250-2 is a monolithic integrated low dropout vo ltage tracker in a tiny smd package pg-sct595-5 with excellent thermal resist ance. it is designed to supply off-board loads (e.g. sensors) in automotive environment. the ic protects itself in case of over load, overtemperature, reverse polarity as well as output short circuit to battery and ground. supply voltages up to v i = 45 v are regulated to a reference voltage applied at the adjust input ?adj? with high accuracy. the output ?q? is able to drive loads up to 50 ma. in order to reduce the quiescent current to a minimum, the TLE4250-2 can be switched to stand-by mode by setting the adjust/enable input ?adj/en? to ?low?.
data sheet 3 rev. 1.0, 2007-07-24 TLE4250-2 block diagram 2 block diagram figure 1 block diagram and simplified typical application 3 pin configuration 3.1 pin assignment figure 2 pin configuration package pg-sct595-5 3.2 pin definitions and functions pin symbol function 1adj/en adjust / enable. connect the reference to this pin. a low signal disables the ic; a high signal switches it on. the reference voltage can be connected directly or by a voltage divider for lower output voltages. for compensating line influences, a capacitor close to the ic pins is recommended. 2gnd ground reference. internally connected to pin 5. connect to heatsink area. 3i input. ic supply. for compensating line influences, a capacitor close to the ic pins is recommended. 4q tracker output. block to gnd with a capacitor close to the ic terminals, respecting capacitance and esr requirements given in the table ?functional range?. 5gnd ground reference. internally connected to pin 2. connect to heatsink area. gnd q i b lockdiagram.vsd saturation control current limitation temp. protection c q off-board load supply c i regulated output voltage adj/en internal supply reference tle 4250-2 adj/en voltage divider optional pinout.vsd gnd 1 i 5 q 2 4 3 gnd adj/en
TLE4250-2 general product characteristics data sheet 4 rev. 1.0, 2007-07-24 4 general product characteristics 4.1 absolute maximum ratings note: stresses above the ones listed here may cause perm anent damage to the device. exposure to absolute maximum rating conditions for extended periods may affect device reliability. note: integrated protection functions are designed to prevent ic destruction under fault conditions described in the data sheet. fault conditions are considered as ?outside? normal operating range. protection functions are not designed for continuous repetitive operation. absolute maximum ratings 1) -40 c t j 150 c; all voltages with respect to ground (unless otherwise specified). 1) not subject to production test, specified by design. pos. parameter symbol limit values unit conditions min. max. voltages 4.1.1 input voltage v i -42 45 v ? 4.1.2 output voltage v q -1 40 v ? 4.1.3 adjust / enable input v adj/en -0.3 40 v ? temperatures 4.1.4 junction temperature t j -40 150 c? 4.1.5 storage temperature t stg -50 150 c? esd susceptibility 4.1.6 esd resistivity v esd,hbm -3 3 kv hbm 2) 2) esd susceptibility, human body model ?hbm? according to eia/jesd 22-a114b 4.1.7 v esd,cdm -2 2 kv cdm 3) 3) esd susceptibility, charged device model ?cdm? according to eia/jesd22-c101 or esda stm5.3.1
data sheet 5 rev. 1.0, 2007-07-24 TLE4250-2 general product characteristics 4.2 functional range note: within the functional range the ic operates as de scribed in the circuit description. the electrical characteristics are specifi ed within the conditions given in the re lated electrical ch aracteristics table. 4.3 thermal resistance pos. parameter symbol limit values unit conditions min. max. 4.2.1 input voltage v i 440 v? 4.2.1 adjust / enable input voltage (voltage tracking range) v adj/en 2.5 36 v ? 4.2.2 junction temperature t j -40 150 c? 4.2.3 output capaci tor requirements c q 1? f? 1) 1) the minimum output capacitance requ irement is applicable for a worst case capacitance tolerance of 30% 4.2.4 esr cq ?3 ? ? 2) 2) relevant esr value at f = 10 khz pos. parameter symbol limit value unit conditions min. typ. max. 4.3.5 junction to ambient r thja ? 81 ? k/w 2s2p board 1) 1) specified r thja value is according to jesd51-2,-5,-7 at na tural convection on fr4 2s2p board; the product (chip+package) was simulated on a 76.2 x 114.3 x 1.5 mm board wi th 2 inner copper layers (2 x 70m cu, 2 x 35m cu). where applicable a thermal via array under the package contacted the first inner copper layer. 4.3.1 ? 217 ? k/w footprint only 2) 2) package mounted on pcb fr4; 80 x 80 x 1.5 mm; 35 m cu, 5 m sn; horizontal position; zero airflow. not subject to production test; specified by design. 4.3.2 ? 117 ? k/w 300 mm 2 pcb heatsink area 2) 4.3.3 ? 103 ? k/w 600 mm 2 pcb heatsink area 2) 4.3.4 junction to soldering point r thjsp ? 30 ? k/w pins 2, 5 fixed to t a
TLE4250-2 electrical characteristics data sheet 6 rev. 1.0, 2007-07-24 5 electrical characteristics 5.1 tracking regulator the output voltage v q is controlled by comparing it to the voltage applied at pin adj/en and driving a pnp pass transistor accordingly. th e control loop stability depe nds on the outpu t capacitor c q , the load current, the chip temperature and the poles/zeros introduced by the integrated circuit. to ensure stable operation, the output capacitor?s capacitance and its equival ent series resistor esr requirements given in the table ?functional range? have to be maintained. for details see also the typi cal performance graph ?output capacitor series resistor esr cq vs. output current i q ?. also, the output capacitor shall be sized to buffer load transients. an input capacitor c i is recommended to buffer line influences. connec t the capacitors close to the ic terminals. protection circuitry prevent the ic as well as the application fr om destruction in case of catastrophic events. these safeguards contain output curr ent limitation, reverse polarity protection as well as thermal shutdown in case of overtemperature. in order to avoid excessive power dissipation that coul d never be handled by the pass element and the package, the maximum output current is de creased at high input voltages. the overtemperature protection circuit prevents the ic from immediate destruction under fault conditions (e. g. output continuously short-circuited) by reducing the output current. a thermal balance below 200 c junction temperature is established. please note that a junction temperature above 150 c is outside the maximum ratings and reduces the ic lifetime. the TLE4250-2 allows a negative supply voltage. however, several small currents ar e flowing into the ic. for details see electrical charac teristics table and typical pe rformance graphs. the therma l protection circuit is not operating during reverse polarity condition. table 1 electrical characteristics tracking regulator v i = 13.5 v; v adj/en 2.5 v; -40 c t j 150 c; all voltages with respect to ground (unless otherwise specified). pos. parameter symbol limit values unit conditions min. typ. max. 5.1.1 output voltage tracking accuracy ? v q -5 ? 5 mv 1 ma i q 10 ma; 6 v v i 16 v 5.1.2 -25 ? 25 mv 1 ma i q 50 ma; 6 v v i 28 v 5.1.3 -25 ? 25 mv 1 ma i q 10 ma; 6 v v i 40v 5.1.4 load regulation steady-state |d v q,load |? ? 15 mv i q = 1 ma to 30 ma; 5.1.5 line regulation steady-state |d v q,line |? ? 10 mv v i = 6 v to 40 v; i q = 10 ma 5.1.6 power supply ripple rejection psrr ?48? db f ripple = 100 hz; v ripple = 1 vpp 1) 5.1.7 dropout voltage v dr = v i - v q v dr ? 100 300 mv i q = 10 ma v adj 4 v 2) 5.1.8 output current limitation i q,max 51 85 120 ma v q = ( v adj - 0.1 v)
data sheet 7 rev. 1.0, 2007-07-24 TLE4250-2 electrical characteristics 5.1.9 reverse current i q -5 -1 ? ma v i = 0 v; v q = 16 v; v adj = 5 v 5.1.10 reverse current at negative input voltage i i -10 -2 ? ma v i = -16 v; v q = 0 v; v adj = 5 v overtemperature protection: 5.1.11 junction temperature equilibrium t j,eq 151 ? 200 c t j increasing due to power dissipation generated by the ic 1) 1) parameter not subject to produ ction test; specified by design. 2) measured when the output voltage v q has dropped 100 mv from its nominal value. table 1 electrical characteristics tracking regulator v i = 13.5 v; v adj/en 2.5 v; -40 c t j 150 c; all voltages with respect to ground (unless otherwise specified). pos. parameter symbol limit values unit conditions min. typ. max.
TLE4250-2 electrical characteristics data sheet 8 rev. 1.0, 2007-07-24 typical performance characteristics tracking regulator v adj/en = 5 v (unless otherwise noted) output voltage v q vs. adjust voltage v adj output voltage v q vs. input voltage v i maximum output current i q vs. input voltage v i line regulation d v q,line vs. input voltage change d v i ) v q [v] vq-vadj.vsd 3 2 1 4 v i = 13.5 v 234 1 v adj [v] t j = 150 c t j = -40 c v q [v] v q-v i.vsd 3 2 1 4 v i = 13.5 v 57 3 v i [v] t j = 150 c t j = -40 c 1 v dr 0 v i [v] 20 30 i q [ma] soa.vsd 60 40 20 80 10 40 120 t j = 25 c v adj = 5 v t j = 125 c 0 ? v i [v] 5 1520 3035 ? v q [mv] dv q-dv i.vsd 0.2 0.1 0 10 25 steady-state condition v i,initial = 6 v v adj = 5 v i q = 5 ma 40 0.3
data sheet 9 rev. 1.0, 2007-07-24 TLE4250-2 electrical characteristics typical performance characteristics tracking regulator v adj/en = 5 v (unless otherwise noted) load regulation d v q,line vs. output current change d i q output capacitor series resistor esr cq vs. output current i q line transient response load transient response 0 ? q [ma] 24 36 48 ? v q [mv] dv q-diq.vsd -4 -6 -8 -2 12 t j = 125 c t j = 25 c steady-state condition i q , init ial = 1 ma v adj = 5 v esr- iq.vsd 1 0.1 0.01 esr cq [ ? ] 0 i q [ma] 20 30 10 40 10 stable region 50 v i < 28 v -40 c < t j < 150 c c q = 1 f c q = 2.2 f 0 t [s] 40 60 ? v q [mv] dv i-reponse.vsd 16 9 0 20 80 v i [v] i q = 5 ma c q = 2.2 f ceramic -40 -20 0 t [s] 40 60 ? v q [mv] diqresponse.vsd 30 5 0 20 80 q [ma] v i = 13.5 v v adj = 5 v c q = 2.2 f ceramic -50
TLE4250-2 electrical characteristics data sheet 10 rev. 1.0, 2007-07-24 typical performance characteristics tracking regulator v adj/en = 5 v (unless otherwise noted) tracking accuracy ? v q vs. junction temperature t j dropout voltage v dr vs. output current i q dropout voltage v dr vs. junction temperature t j output current limitation i q,max vs. output voltage v q -40 t j [c] -20 20 40 80 100 ? v q [mv] dv q-tj.vsd 4 0 -4 8 0 60 140 120 i q = 1 ma i q = 50 ma i q [ma] 110 v dr-iq_l og.vsd 100 10 50 v dr [mv] t j = 25 c t j = 150 c -40 t j [c] -20 20 40 80 100 v dr [mv] v dr-tj .vsd 200 150 100 250 0 60 140 120 i q = 10 ma 40 v q [v] 80 100 i q [ma] iqmax-vq.vsd 3 2 1 60 0 5 v i = 13.5 v v adj = 5 v 20 t j = 125c t j = 25c
data sheet 11 rev. 1.0, 2007-07-24 TLE4250-2 electrical characteristics typical performance characteristics tracking regulator v adj/en = 5 v (unless otherwise noted) reverse output current i q vs. output voltage v q reverse current i i vs. input voltage v i power supply ripple rejection psrr 0 v q [v] 16 24 i q [ma] iq-v q.vsd -1 -1.5 -2 -0.5 832 +0.5 v i = 0 v v adj = 5 v t j = 150 c t j = -40 c -32 v i [v] -16 -8 i i [ma] ii-v i.vsd -1 -1.5 -2 -0.5 -24 0 +0.5 t j = 150 c t j = -40 c v q = 0 v v adj = 5 v 0.01 f [khz] 10 psrr [db] psrr.vsd 40 30 0.1 1 100 60 10 20 i q = 5 ma v ripple = 1 v v in = 13.5 v c q = 2.2 f ceramic t j = 25 c
TLE4250-2 electrical characteristics data sheet 12 rev. 1.0, 2007-07-24 5.2 current consumption typical performance characteristics current consumption v adj/en = 5 v (unless otherwise noted) table 2 electrical characteristics current consumption v i = 13.5 v; v adj/en 2.5 v; -40 c t j 150 c; all voltages with respect to ground (unless otherwise specified). pos. parameter symbol limit values unit conditions min. typ. max. 5.2.1 quiescent current stand-by mode i q1 ?1020a v adj/en 0.4 v; t j 85 c 5.2.2 current consumption i q = i i - i q i q2 ? 140 200 a i q 1 ma; 5.2.3 ? 3 5 ma i q 30 ma; 5.2.4 current consumption dropout region; i q = i i - i q i q3 ?12ma v adj = v i = 5 v; i q = 0 ma current consumption i q1 , i q2 vs. junction temperature t j current consumption i q2 vs. output current i q iq-tj.vsd 0.1 1 i q2 [ma] -40 t j [c] -20 20 40 80 100 060 140 120 12 i q1 [a] 16 v i = 13.5v v en/adj = 0 v v i = 13.5v v en/adj = 5 v i q = 1 ma i q = 30 ma i q [ma] 110 iq-iq.vsd 1 0.1 i q [ma] 50 v en/adj = 5 v v i = 9 v v i = 32 v v i = 13.5 v v i = 32 v
data sheet 13 rev. 1.0, 2007-07-24 TLE4250-2 electrical characteristics current consumption i q2 vs. input voltage v i 6 v i [v] 14 18 i q [ma] iq-v i.vsd 6 4 2 8 10 22 i q = 50 ma v adj = 5 v 12 24 i q = 30 ma i q = 10 ma
TLE4250-2 electrical characteristics data sheet 14 rev. 1.0, 2007-07-24 5.3 adjust / enable input in order to reduce the quiescent current to a minimum, the TLE4250-2g can be switched to stand-by mode by setting the adjust/enable input ?adj/en? to ?low?. typical performance characteristics adjust / enable input vadj/en = 5v (unless otherwise noted) table 3 electrical characteristics adjust / enable v i = 13.5 v; v adj 2.5 v; -40 c t j 150 c; all voltages with respect to ground, positive curren t flowing into pin (unless otherwise specified). pos. parameter symbol limit values unit conditions min. typ. max. 5.3.1 adjust / enable input current i adj ?0.10.5a v adj = 5 v; 5.3.2 adjust / enable low signal valid v adj,low ??0.4v v q = 0 v; 5.3.3 adjust / enable high signal valid (tracking region) v adj,high 2.5 ? 36 v | v q - v adj | < 25 mv; startup sequence 0 t [s] 20 60 80 120 140 v [v] 4250-2_startup.vsd 3 2 1 4 40 100 v adj overshoot depends on load current, c q , esr cq d v q / d t = ( i q,max - i load ) / c q
TLE4250-2 package outlines data sheet 16 rev. 1.0, 2007-07-24 5 package outlines figure 3 outline pg-sct595-5 figure 4 footprint pg-sct595-5 green product (rohs compliant) to meet the world-wide customer requirements for environmentally friendly products and to be compliant with government regulations the device is available as a green product. green products are rohs-compliant (i.e pb-free finish on leads and suitable for pb-free soldering according to ipc/jedec j-std-020). for further information on alternative packages, please visit our website: http://www.infineon.com/packages dimensions in mm gpw05997 1.1 max. 0.1 max. (2.2) (0.3) (0.4) 1) (0.23) 1) (0.13) 1) contour of slot depends on profile of gull-wing lead form 1.2 -0.05 +0.1 ?.2 2.9 b +0.2 acc. to din 6784 0.3 -0.05 +0.1 +0.1 0.6 -0.05 0.95 1.9 b m 0.25 ?.1 10? max. a 1.6 10? max. ?.1 0.25 ?.1 2.5 0.15 -0.06 +0.1 0.2 m a 3 4 5 2 1 hlg09053 2.3 1.3 2.9 1.9 0.4 0.75 0.95 hlg09090 2.3 1.3 1.6 1.3 min. 0.4 1.45 0.75 0.95 reflow soldering wave soldering
data sheet 17 rev. 1.0, 2007-07-24 TLE4250-2 revision history 6 revision history revision date changes rev. 1.0 2007-07-24 ? final datasheet initial version
edition 2007-07-24 published by infineon technologies ag 81726 munich, germany ? 2007 infineon technologies ag all rights reserved. legal disclaimer the information given in this docu ment shall in no event be regarded as a guarantee of conditions or characteristics. with respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, infine on technologies hereby disclaims any and all warranties and liabilities of any kind, including witho ut limitation, warranties of non-infrin gement of intellectua l property rights of any third party. information for further information on technology, delivery terms and 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 nearest infineon technologies office. infineon technologies compon ents may be used in life-su pport 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 de vice or system. life support devices or systems are intended to be implanted in the hu man body or to support an d/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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