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automotive data sheet rev. 1.0, 2010-03-26 TLD1211SJ high side current source 1 channel typical 85ma load current, up to 2.5a load current us ing external transistors infineon ? basic led driver
pg-dso-8-16 type package marking TLD1211SJ pg-dso-8-16 TLD1211SJ data sheet 2 rev. 1.0, 2010-03-26 basic led driver TLD1211SJ TLD1211SJ 1overview features ? adjustable constant output current up to 85 ma ? led current of 2.5 a possible by using external power transistors ? voltage drop across sense resistor typ. 0.15 v ? internal bandgap voltage reference enables high output current accuracy ? en input for pwm brightness control ? overvoltage protection ? temperature dependent output current reduction ? very low standby current ? maximum operating voltage 28 v ? small smd package ? green product (rohs compliant) ? aec qualified applications ? led controller for automotive applications, low- and high-power led ? universal constant current source ? interior and exterior lighting ? instrument backlighting ? illumination description the TLD1211SJ is an integrated adjustable constant curren t source realized in a bipolar ic technology. the ic is designed to supply leds under the severe conditions of automotive applications resu lting in constant brightness and extended led lifetime. the TLD1211SJ is capable to dr ive high current, high brightness leds up to 2.5 a by using additional external output stages as ?booster? transistors. for led curr ents up to 85ma the ic can be used as a stand alone device and requires only one voltage sense resistor as an external component. protection circuits prevent damage to the device in case of overload, short circuit, over voltage, and overtemperature. furthermore, the temperature dependent current reduction is able to protect leds which are thermally coupled to the ic. the integrated en input of the TLD1211SJ enab les led brightness control by pulse width modulation.
TLD1211SJ basic led driver block diagram data sheet 3 rev. 1.0, 2010-03-26 2 block diagram figure 1 block diagram 2.1 closed loop test setup figure 2 closed loop test setup tld1211 _block diagram.vsd 3 2 1 nc vs vsense out nc en 4 gnd 6 7 8 5 nc vref op output stage bandgap based voltage reference TLD1211SJ r 1 r 2 tld1211 _test circuit.vsd = vref v s v sense out en gnd + - vout
data sheet 4 rev. 1.0, 2010-03-26 TLD1211SJ basic led driver pin configuration 3 pin configuration 3.1 pin assignment figure 3 pin configuration 3.2 pin definition and functions pin symbol function 1 nc not connected 2 v s supply voltage 3 v sense sense input 4 gnd ic ground, connect with pin 2 on pcb 5 nc not connected 6 en enable (pwm input) 7outoutput 8 nc not connected pg-dso- 8-16.vsd nc out en nc vs vsense gnd nc 1 3 2 8 7 6 45
TLD1211SJ basic led driver electrical characteristics data sheet 5 rev. 1.0, 2010-03-26 4 electrical characteristics 4.1 absolute maximum ratings 4.2 thermal resistance table 1 absolute maximum ratings 1) 40 c < t j < 150 c; all voltages with respect to ground; positive current defined flowing into pin; unless otherwise specified 1) not subject to production test, specified by design pos. parameter symbol limit values unit remark min. max. 4.1.1 supply voltage v s -0.3 45 v 4.1.2 sense voltage v sense -0.3 7 v 4.1.3 en voltage v en -0.3 7 v 4.1.4 output current i out ? ? ma internally limited 4.1.5 power dissipation p tot 0500mw 4.1.6 junction temperature t j -40 150 c 4.1.7 storage temperature range t stg -55 150 c 4.1.8 esd resistivity v esd_hbm -4000 4000 v hbm 2) 2) esd susceptibility hbm according to eia/jesd 22-a 114b table 2 thermal resistance pos. parameter symbol limit values unit conditions min. typ. max. 4.2.1 junction to ambient 1) 2) 1) not subject to production test, specified by design 2) package was simulated on a fr4 pcb, 80 x 80 x 1.5 mm; 35 m cu r thja ? 155 ? k/w footprint only ? 96 ? k/w 300 mm 2 pcb heatsink area ? 86 ? k/w 600 mm 2 pcb heatsink area
data sheet 6 rev. 1.0, 2010-03-26 TLD1211SJ basic led driver electrical characteristics 4.3 electrical characteristics 4.3 table 3 electrical characteristics 8v< v s <28v; - 40c< t j < 150 c, en = 5 v; r 1 , r 2 = open; all voltages with respect to ground; positive current defined flowing into pin; unless otherwise specified pos. parameter symbol values unit note / test condition min. typ. max. 4.3.1 operating current during over voltage is ov ??600 a v out =0v; v s =42v; v sense =0mv 4.3.2 operating current during open load is open load 0.5 1.4 1.7 ma v out = open; v sense =0mv 4.3.3 standby current is standby ??300naen = 0v; v sense =0mv; t j <85c 1) 4.3.4 standby current is standby,hot ? ? 30 a en = 0 v; v sense =0mv 4.3.51 output current i out,oncold 40 ? ? ma v s -v out =3v; v sense =0mv; t j =-40c 4.3.52 output current i out,on 65 85 110 ma v s -v out =3v; v sense =0mv; t j >0c 1) ; t j <135c 1) 4.3.6 output current i out,onhot 60 ? ? ma v s -v out =3v; v sense =0mv; t j =150c 4.3.7 output leakage current i out,off ??400naen = 0v; v out = 0 v 4.3.8 current of sense input i sense -5 ? 0.5 a v out =0v, v sense =200mv 4.3.9 voltage of sense input v sense 135 150 165 mv r 1 = 390 ?; r 2 =10 ? see figure 2 ; t j <115c 1) 4.3.10 over voltage protection v s, ov 28 33 ? v ? 4.3.11 drop voltage v s - v out ? ? 1.3 v i out <15ma v sense =0mv; v s =8v en input 4.3.12 current of enable input i en 60 90 130 av en = 5 v 4.3.13 high level voltage range v en,on 1 ? 5.5 v use resistors at pin to be cmos/ttl compatible; see figure 16 4.3.14 low level voltage range v en,off -0.3 ? 0.3 v use resistors at pin to be cmos/ttl compatible; see figure 16
TLD1211SJ basic led driver electrical characteristics data sheet 7 rev. 1.0, 2010-03-26 figure 4 timing diagram 4.3.15 turn on time 2) t en,on ??65 s i out100% = 15ma, see figure 4 ; r 1 =390 ?; r 2 =10 ? , see figure 2 4.3.16 turn off time 2) t en,off ??60 s i out100% = 15ma; see figure 4 ; r 1 =390 ?; r 2 =10 ? , see figure 2 1) not subject to production test, based on temperature characterization 2) when using an external boost transistor this time is reduced (see also figure 16 ) table 3 electrical characteristics (cont?d) 8v< v s <28v; - 40c< t j < 150 c, en = 5 v; r 1 , r 2 = open; all voltages with respect to ground; positive current defined flowing into pin; unless otherwise specified pos. parameter symbol values unit note / test condition min. typ. max. en iout t tld1211_power_stage.emf t 20% 80% t en , on t en ,off
data sheet 8 rev. 1.0, 2010-03-26 TLD1211SJ basic led driver characterization data 5 characterization data characterization data based on typical device. tld1 211sj has been measured in a setup with undefined high thermal resistance. 5.1 setup 1 setup according to figure 2 . r 1 = 390 ? , r 2 = 10 ? , v en = 5 v figure 5 i out vs t j =f( v s ) figure 6 i out vs v s =f( t j ) iout vs. tj =f(vs) 6 7 8 9 10 11 12 13 14 15 16 -50 -25 0 25 50 75 100 125 150 175 tj [c] iout [ma] vs = 8 v vs = 1 4 v vs = 2 4 v iout v s. vs = f(tj) 6 7 8 9 10 11 12 13 14 15 16 0 5 10 15 20 25 30 35 40 45 vs [v] iout [ma] tem p= -40c tem p= -25c tem p= 0c tem p= 25c tem p= 45c tem p= 65c tem p= 85c temp= 105c temp= 125c temp= 150c
TLD1211SJ basic led driver characterization data data sheet 9 rev. 1.0, 2010-03-26 5.2 setup 2 setup according to figure 2 . r 1 = 0 ? , r 2 = 0 ? , v out = 0 v, v sense = 0 v, v en = 5 v figure 7 i out vs t j =f( v s ) figure 8 i out vs v s =f( t j ) iout v s. tj = f(vs) vse nse =0v 6 16 26 36 46 56 66 76 86 96 -50 -25 0 25 50 75 100 125 150 175 tj [c] iout [ma] vs= 8v vs= 14v vs= 24 v iout v s. vs = f(tj) vse nse =0v 6 16 26 36 46 56 66 76 86 96 0 5 10 15 20 25 30 35 40 45 vs [v] iout [ma] temp= -40c temp= -25c temp= 0c temp= 25c temp= 45c temp= 65c temp= 85c temp= 105c temp= 125c temp= 150c
data sheet 10 rev. 1.0, 2010-03-26 TLD1211SJ basic led driver characterization data 5.3 setup 3 v out = 0 v, v sense = variable, v en = 5 v figure 9 i out vs v sense =f( t j ) at v s = 8 v figure 10 i out vs v sense =f( t j ) at v s = 14 v iout vs. vsense = f(tj) vs=8v 0 10 20 30 40 50 60 70 80 90 100 100 110 120 130 140 150 160 170 180 vsense [v] iout [ma] temp= -40c temp= -25c temp= 0c temp= 25c temp= 45c temp= 65c temp= 85c temp= 105c temp= 125c temp= 150c iout v s. vse nse = f(tj) vs=14v 0 10 20 30 40 50 60 70 80 90 100 100 110 120 130 140 150 160 170 180 vsense [v] iout [ma] temp= -40c temp= -25c temp= 0c temp= 25c temp= 45c temp= 65c temp= 85c temp= 105c temp= 125c temp= 150c
TLD1211SJ basic led driver characterization data data sheet 11 rev. 1.0, 2010-03-26 figure 11 i out vs v sense =f( t j ) at v s = 24 v 5.4 setup 4 v s = 14 v, v out = 6 v, v sense = 20 mv, v en = variable figure 12 i out vs v ebn =f( t j ) at v s = 14 v iout v s. vse nse = f(tj) vs=24v 0 10 20 30 40 50 60 70 80 90 100 100 110 120 130 140 150 160 170 180 vsense [v] iout [ma] temp= -40c temp= -25c temp= 0c temp= 25c temp= 45c temp= 65c temp= 85c temp= 105c temp= 125c temp= 150c iout vs. ven = f(tj) vs=14v 0 10 20 30 40 50 60 70 80 90 100 0 0,5 1 1,5 2 2,5 ven [v] iout [ma] temp= -40c temp= -25c temp= 0c temp= 25c temp= 45c temp= 65c temp= 85c temp= 105c temp= 125c temp= 150c
data sheet 12 rev. 1.0, 2010-03-26 TLD1211SJ basic led driver characterization data 5.5 setup 5 v out = 0 v, v sense = 0 v, v en = 0 v figure 13 i s vs t j =f( v s ) figure 14 i s vs t j =f( v s ), t j < 125 c is vs. tj = f(vs) 0 2 4 6 8 10 12 14 -50 -25 0 25 50 75 100 125 150 tj [c] is [a] vs= 8v vs= 14v vs= 24 v is vs. tj = f(vs) tj < 125c 0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 -50 -25 0 25 50 75 100 125 tj [c] is [a] vs= 8v vs= 14v vs= 24 v
TLD1211SJ basic led driver characterization data data sheet 13 rev. 1.0, 2010-03-26 figure 15 i s vs v s =f( t j ) is vs. vs = f(tj) 0 5 10 15 20 25 30 35 40 45 50 0 5 10 15 20 25 30 35 40 45 vs [v] is [a] temp= -40c temp= -25c temp= 0c temp= 25c temp= 45c temp= 65c temp= 85c temp= 105c temp= 125c temp= 150c
data sheet 14 rev. 1.0, 2010-03-26 TLD1211SJ basic led driver application information 6 application information figure 16 application information with external output stage note: this is a very simplified example of an application ci rcuit. the function must be verified in the real application. rsense = 0,42 ? bcx55-16 tld1211 application diagram 2 .vsd r 1 = 820 ? vreg tle4264 gnd v bat v i v q c gnd 5v out/ pwm 10f r 2 = 100 ? 1, 8k ? bas3010a-03w 1k ? 3 2 1 nc vs vsense out nc en 4 gnd 6 7 8 5 nc vref op output stage bandgap based voltage reference TLD1211SJ 47nf
TLD1211SJ basic led driver application information data sheet 15 rev. 1.0, 2010-03-26 figure 17 application information with integrated output stage usage note: this is a very simplified example of an application ci rcuit. the function must be verified in the real application. vreg tle4264 gnd v bat v i v q c gnd 5v out/ pwm 10f 1.8k ? bas 3010a-03w 1k ? 3 2 1 nc vs vsense out nc en 4 gnd 6 7 8 5 nc vref op output stage bandgap based voltage reference TLD1211SJ 47nf
data sheet 16 rev. 1.0, 2010-03-26 TLD1211SJ basic led driver package outlines 7 package outlines figure 18 package outline; pg-dso-8-16 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). dimensions in mm for further information on alternativ e packages, please vi sit our website: http://www.infineon.com/packages .
TLD1211SJ basic led driver revision history data sheet 17 rev. 1.0, 2010-03-26 8 revision history revision date changes 1.0 2010-03-26 initial revision
edition 2010-03-26 published by infineon technologies ag 81726 munich, germany ? 2010 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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