BD8372HFP-M

Power Management ICs for Automotive Body Control LED Drivers for Automotive Light BD8372HFP-M,BD8372EFJ-M No.11039EAT13 ●Description BD8372HFP-M and BD8372EFJ-M are a LED source driver with the capability of withstanding high input voltage (50V MAX). The fixed current output can change in the H/L current, and it is the best for automotive LED drive. It is built into LED open/short protection, external resistance open/short protection and overvoltage overheating protection and high reliability can be achieved. When driving two or more LED by using two or more IC, it can be done to control LED all together turning off even if LED causes short/open in a certain row. ●Features 1) Input voltage range 5.5～40V 2) Changeable type fixed current source driver(200 mA max), Current accuracy ±3%(VIN=13 V, Ta=25℃) 3) H/L Current setting switch control 4) Built-in LED open/short protection circuit 5) Built-in ISET open/short protection circuit 6) Built-in overvoltage overheating protection and temperature protection circuit 7) Error state output detection function (PBUS) 8) HRP7/HTSOP-J8 package ●Applications For automotive (Lear lamp, Interior light, etc.) ●Absolute maximum ratings (Ta=25℃) Parameter Power supply voltage STOP, IOUT, PBUS terminal ISETH, ISETL terminal Power Consumption Operating temperature range Storage temperature range Joint part temperature IOUT output maximum current *1 HRP7 Symbol VVIN VSTOP, VIOUT, VPBUS VISETH, VISETL Pd Topr Tstg Tjmax IIOUT Ratings 50 50 7 2.3(HRP7) -40～125 -55～150 150 200 *1 Unit V V V W ℃ ℃ ℃ mA 1.1(HTSOP-J8)*2 IC mounted on glass epoxy 2 layer board, area 15mmx15mm of the back copper foil, measuring 70mm×70mm×1.6mm less than copper foil share 3%, power dissipated at a rate of 18.4mw/℃ at temperatures above 25℃. *2 HTSOP-J8 IC mounted on glass epoxy 2 layer board, area 15mmx15mm of the back copper foil, measuring 70mm×70mm×1.6mm less than copper foil share 3%, power dissipated at a rate of 88mw/℃ at temperatures above 25℃. ●Operating conditions (Ta=-40～+125℃) 〔Please set after considering power consumption for the power-supply voltage.〕 Ratings Parameter Symbol Min. Typ. Max. Power supply voltage Current setting resistance VIN RISETH RISETL 5.5 10k 10k 13 40 100k 100k Unit V Ω Ω Conditions STOP=H STOP=L www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 1/16 2011.04 - Rev.A BD8372HFP-M,BD8372EFJ-M Technical Note ●Electrical characteristics (unless otherwise specified, Ta=-40 ～ 125 ℃ , VIN=13V, R I S ET L =R I S ET H =40k Ω , PBUS=10k Ω ) Parameter Circuit current IOUT output current different width H Symbol IVIN Limits Min. 48.5 Typ. 2.9 50 50 5 5 0.7 0.5 0.8 5.1k 400k Max. 5 51.5 54 5.15 5.4 1.2 0.7 1 40 7.5k - Unit mA mA mA mA mA V V µA µA µA V V V V V V µA V V V µA V V Conditions IOUT_H 46 4.85 IOUT_L 4.6 VDRH_IOUT VDRL_IOUT IIOUT_OFF IIOUT_SHORT IISET VISET_SHORT VISET_OPEN VIOUT_OPEN VIOUT_SHORT VIH_STOP VIL_STOP VIN_STOP VIH_PBUS VIL_PBUS VOL_PBUS IIN_PBUS 125k IOUT output current different width L IOUT drop voltage H IOUT drop voltage L IOUT OFF current IOUT current at GND short ISET current ISET short detection ISET open detection IOUT LED OPEN detection IOUT LED short detection STOP input voltage H STOP input voltage L STOP input current PBUS input voltage H PBUS input voltage L PBUS Low voltage PBUS input current 50mA setting (ISET=40kΩ) STOP=High, Ta=25℃ 50mA setting (ISET=40kΩ) STOP=High, Ta=-40～125℃ 5mA setting (ISET=40kΩ) STOP=Low, Ta=25℃ 5mA setting (ISET=40kΩ) STOP=Low, Ta=-40～125℃ 200mA setting(ISET=10kΩ) STOP=High 20mA setting(ISET=10kΩ) STOP=Low VIOUT=2V, PBUS=L, Ta=25℃ VIOUT=0V ISETH, ISETL ISETH, ISETL ISETH, ISETL VIN-0.3 VIN-0.2 VIN-0.1 0.2 4.0 GND 4.0 GND 7.5 16 0.6 40 38 8.0 19 1.0 VIN+0.2 1.0 100 VIN+0.2 2.0 1.5 100 8.5 24 STOP=13V IPBUS=20mA PBUS=13V VIN Reduce voltage open mask VUVLO_IOPEN VIN Over voltage mute current VIN_OVPMUTE 200mA setting (ISET=10kΩ) STOP=High ※This product is not designed for use in radioactive environments. www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 2/16 2011.04 - Rev.A BD8372HFP-M,BD8372EFJ-M ●Package outline Technical Note HRP7(Unit：mm） HTSOP-J8(Unit：mm） www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 3/16 2011.04 - Rev.A BD8372HFP-M,BD8372EFJ-M ●Block diagram VIN Technical Note IOUT VREF H/L MODE SET VREF Current CONTROL LED OPEN DET VIN mode VIN-0.2V 0.6V LED GND SHORT DET STOP PBUS PROTECT VREF led open led short B+ led off Iref_l Iref_h Iref_l 0.8V 0.8V Iref_h GND ISETL RISETL ISETH RISETH ●Pin description HRP7 No. 1 2 3 4 5 6 7 Symbol STOP PBUS ISETL GND ISETH VIN IOUT Description Brake light input terminal Error detection I/O terminal Current setting terminal(L mode) GND Current setting terminal(H mode) Lighting signal Current output terminal HTSOP-J8 No. 1 2 3 4 5 6 7 8 Symbol VIN IOUT GND GND STOP PBUS ISETL ISETH Description Lighting signal Current output terminal GND GND Brake light input terminal Error detection I/O terminal Current setting terminal(L mode) Current setting terminal(H mode) www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 4/16 2011.04 - Rev.A BD8372HFP-M,BD8372EFJ-M ●Electrical characteristic curves HRP7 Pd[W] 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 25 50 75 100 2.3W 1.6W 4.16W (2 layer copper foil 50mm×50mm) θja = 30℃/W Technical Note (2 layer copper foil 15mm×15mm) θja = 54.4℃/W (1 layer) θja = 78.1℃/W 125 150 Ta[℃] The value of Power consumption:in glass epoxy board measuring70mm x 70mm x 1.6mmt HTSOP-J8 Pd[W] 1.8 1.6 1.4 1.2 1.0 0.82W 0.8 0.6 0.4 0.2 0.0 0 25 50 75 100 125 150 Ta[℃] 1.1W (2 layer copper foil 15mm×15mm) θja = 113.6℃/W (1 layer)θja = 153.2℃/W The value of Power consumption:in glass epoxy board measuring70mm x 70mm x 1.6mmt www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 5/16 2011.04 - Rev.A BD8372HFP-M,BD8372EFJ-M ●Equivalent-circuit diagram of the terminals Pin No. Pin name Equivalent-circuit diagram of the terminals Technical Note VIN (6pin) STOP (1pin) 5V 1 STOP 300kΩ 100kΩ GND (4pin) VIN (6pin) 200kΩ PBUS (28pin) 5V GND (4pin) 5V 2 PBUS 5V VIN (6pin) 5V 3 ISETL ISETL (3pin) GND (4pin) 4 GND - www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 6/16 2011.04 - Rev.A BD8372HFP-M,BD8372EFJ-M Technical Note Pin No. Pin name Equivalent-circuit diagram of the terminals 5V VIN (6pin) 5V 5 ISETH ISETH (5pin) GND (4pin) 6 VIN - VIN (6pin) 5V 7 IOUT IOUT (7pin) GND (4pin) www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 7/16 2011.04 - Rev.A BD8372HFP-M,BD8372EFJ-M Technical Note ●Function description (Unless otherwise specified, VIN=13V, RISETL=RISETH=40kΩ, The numerical value in the table has described the TYP value.) Table for operation STIOP L H L/H L/H L H L H VIOUT 2.V