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BCR430U low drop voltage led driver ic feature list ? supply voltage from 6 v to 42 v ? controls up to 100 ma led current ? typ. 135 mv saturation voltage at 50 ma ? led current precision 5 % at 95ma ? smart over temperature protection function advantages with respect to discrete solutions ? low bom count ? lower assembly cost ? smaller form factor ? higher reliability due to less parts and soldering joints potential applications ? led strips ? led displays and channel letters ? architectural and landscape lighting ? retail lighting product validation ? qualified for industrial applications according to the relevant tests of jedec47/20/22 product name package marking BCR430U pg-sot23-6-1 43 description BCR430U is a linear led controller ic in a small pg-sot23-6-1 package regulating the led current in standalone operation without any external power transistor. the ic supply voltage range is from 6 v up to 42 v. the led current level can be adjusted up to 100 ma connecting a high ohmic resistor rset to pin rs. the voltage drop at the integrated led driver stage is less than 200 mv at 50 ma improving the overall system eficiency and providing extra voltage headroom to compensate for tolerances of led forward voltage or supply voltage. the smart over temperature protection function reduces the led current when junction temperature of BCR430U is very high. datasheet please read the important notice and warnings at the end of this document 1.0 www.infineon.com 2017-10-09
table of contents feature list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 advantages with respect to discrete solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 potential applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1 application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 electrical characteristics and parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6 references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 BCR430U low drop voltage led driver ic table of contents datasheet 2 1.0 2017-10-09
1 application circuit v supply i led r set BCR430U 4 5 6 1 2 3 n.c. gnd rs vs n.c. led driver regulator current generator tsd band gap & bias generator tsd: thermal shutdown figure 1 typical application circuit of BCR430U 2 pin configuration pin no. pin name pin type function 1 n.c. - not connected 2 gnd gnd ic ground & thermal connection to heat spreader on pcb 3 rs output connection of rset resistor 4 vs input supply voltage 5 n.c. - not connected 6 led input driver pin to control the led current 6 1 2 4 3 n.c. gnd rs led vs 5 n.c. figure 2 pinout bcr430 BCR430U low drop voltage led driver ic application circuit datasheet 3 1.0 2017-10-09
3 functional description led current configuration the led current is configured by the external resistor rset at pin rs. the current flowing into pin led is proportional to the current flowing out of pin rs by a ratio of about 520:1. therefore, the led current depends on the value of rset. 20 30 40 50 60 70 80 90 100 6000 10000 15000 20000 25000 30000 i led [ma] r set [ohm] figure 3 relation between i led and r set BCR430U low drop voltage led driver ic functional description datasheet 4 1.0 2017-10-09
smart over temperature protection function BCR430U reduces the led current with increasing junction temperature by reducing the voltage at pin rs. the reduced voltage of pin rs drives less current through the external resistor rset, causing the current into pin led to reduce. the led current is never turned of fully. 30 40 50 60 70 80 90 100 -40 -20 0 20 40 60 80 100 120 140 160 i led [%] t j [degc] figure 4 relative reduction of led current versus junction temperature of BCR430U maximum permitted power dissipation to avoid damage of the ic the power dissipation of BCR430U must be reduced with increasing ambient temperature according to figure 5 . 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0 20 40 60 80 100 120 140 160 p tot [w] t a [degc] figure 5 maximum permitted total power dissipation of BCR430U on a jesd 51-7 board BCR430U low drop voltage led driver ic functional description datasheet 5 1.0 2017-10-09
4 electrical characteristics and parameters table 1 maximum ratings at t a = 25 c, unless otherwise specified parameter symbol values unit note or test condition min. typ. max. junction temperature t j -40 - 150 c supply voltage v s 0 - 45 v voltage at led pin v led 0 - 20 v driver led current i led 0 - 100 ma rs output current i rs 0 - 0.3 ma power dissipation p tot - - 600 mw jesd 51-7 test board, t a 36 c esd robustness v esd,hbm - - 1 kv hbm according to jedec js-001 attention: stresses above the max. values listed here may cause permanent damage to the device. exposure to absolute maximum rating conditions for extended periods may afect device reliability. maximum ratings are absolute ratings; exceeding only one of these values may cause irreversible damage to the integrated circuit. table 2 thermal resistance at t a = 25 c, unless otherwise specified parameter symbol values unit note or test condition min. typ. max. thermal resistance junction to ambient r thja,1s0p,0 - - 288 k/w jedec 1s0p (jesd 51-3) footprint w/o extra cooling area r thja,1s0p,300 - - 182 k/w jedec 1s0p (jesd 51-3) with 300 mm2 cooling area connected to gnd pin r thja,2s2p - - 190 k/w jedec 2s2p (jesd 51-7) thermal resistance junction to soldering pint r thjs - 70 - k/w table 3 electrical characteristics at t a = 25 c, unless otherwise specified parameter symbol values unit note or test condition min. typ. max. supply voltage v s 6 - 42 v operational voltage range supply current i s 1.2 1.7 2.2 ma i led = 50 ma, v s = 6 v 1.3 1.8 2.3 i led = 50 ma, v s = 42 v BCR430U low drop voltage led driver ic electrical characteristics and parameters datasheet 6 1.0 2017-10-09
table 3 electrical characteristics at t a = 25 c, unless otherwise specified (continued) parameter symbol values unit note or test condition min. typ. max. driver led current range i led 5 - 100 ma driver led current by r set i led 18.0 20.4 22.7 ma r set = 30 k? 45.7 49 52.3 r set = 12.7 k? 90 95 100 r set = 6.49 k? driver saturation voltage v led,sat 70 135 200 mv i led = 50 ma rs pin voltage v rs 1.16 1.20 1.24 v i rs = 0 a 1.15 1.19 1.23 i rs = 200 a BCR430U low drop voltage led driver ic electrical characteristics and parameters datasheet 7 1.0 2017-10-09
5 package dimensions 1) does not include p las tic or metal p rotrus ion of 0.15 max. p er s ide bottom view index marking all dimens ions are in units mm the drawing is in comp liance with is o 128 & p roj ection method 1 [ ] g a u g e p l a n e 1 . 1 5 0 . 1 5 1 . 2 5 0 . 2 0 . 1 0 . 0 5 0.1 c s eating p lane cop lanarity c 0.45 0.1 2.8 2.9 0 . 2 5 s t a n d o f f ( 0 . 8 5 ) 0.15 c a-b 2x 1.6 0.15 c d 2x 0.2 c 6x 0.4 0.1 6x 0.2 c a b 0.95 1) 1) d a b 0 . . 8 0 . 1 2 5 + 0 . 0 7 5 - 0 . 0 4 5 6 1 3 4 1 3 4 6 figure 6 package outline pg-sot23-6-1 BCR430U low drop voltage led driver ic package dimensions datasheet 8 1.0 2017-10-09
figure 7 footprint pg-sot23-6-1 BCR430U low drop voltage led driver ic package dimensions datasheet 9 1.0 2017-10-09
all dimens ions are in units mm the drawing is in comp liance with is o 128 & p roj ection method 1 [ ] p in 1 index marking 4 4 0.25 1.55 3.3 3 . 2 8 figure 8 tape & reel pg-sot23-6-1 6 references revision history document version date of release description of changes 1.0 2017-10-09 first version of data sheet BCR430U low drop voltage led driver ic references datasheet 10 1.0 2017-10-09
trademarks all referenced product or service names and trademarks are the property of their respective owners. edition 2017-10-09 published by infineon technologies ag 81726 munich, germany ? 2017 infineon technologies ag all rights reserved. do you have a question about any aspect of this document? email: erratum@infineon.com document reference ifx-rso1496044693434 important notice the information given in this document shall in no event be regarded as a guarantee of conditions or characteristics (beschafenheitsgarantie) . with respect to any examples, hints or any typical values stated herein and/or any information regarding the application of the product, infineon technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation warranties of non-infringement of intellectual property rights of any third party. in addition, any information given in this document is subject to customers compliance with its obligations stated in this document and any applicable legal requirements, norms and standards concerning customers products and any use of the product of infineon technologies in customers applications. the data contained in this document is exclusively intended for technically trained staf. it is the responsibility of customers technical departments to evaluate the suitability of the product for the intended application and the completeness of the product information given in this document with respect to such application. warnings due to technical requirements products may contain dangerous substances. for information on the types in question please contact your nearest infineon technologies ofice. except as otherwise explicitly approved by infineon technologies in a written document signed by authorized representatives of infineon technologies, infineon technologies products may not be used in any applications where a failure of the product or any consequences of the use thereof can reasonably be expected to result in personal injury

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