BD8372EFJ-M ROHM [Rohm], BD8372EFJ-M Datasheet
BD8372EFJ-M
Related parts for BD8372EFJ-M
BD8372EFJ-M Summary of contents
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... BD8372HFP-M,BD8372EFJ-M ●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 built into LED open/short protection, external resistance open/short protection and overvoltage overheating protection and high reliability can be achieved ...
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... BD8372HFP-M,BD8372EFJ-M ●Electrical characteristics (unless otherwise specified, Ta=-40～ 125℃ , VIN=13V, R Parameter Circuit current IOUT output current different width H 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 ...
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... BD8372HFP-M,BD8372EFJ-M ●Package outline www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. HRP7(Unit：mm） HTSOP-J8(Unit：mm） 3/16 Technical Note 2011.04 - Rev.A ...
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... BD8372HFP-M,BD8372EFJ-M ●Block diagram VIN H/L MODE STOP PROTECT PBUS B+ ●Pin description HRP7 No. Symbol 1 STOP Brake light input terminal 2 PBUS Error detection I/O terminal 3 ISETL Current setting terminal(L mode) 4 GND GND 5 ISETH Current setting terminal(H mode) 6 VIN Lighting signal 7 IOUT Current output terminal www.rohm.com © ...
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... BD8372HFP-M,BD8372EFJ-M ●Electrical characteristic curves HRP7 HTSOP-J8 www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. Pd[W] 5.0 (2 layer copper foil 50mm×50mm) 4.5 4.16W θja = 30℃/W 4.0 3.5 (2 layer copper foil 15mm×15mm) θja = 54.4℃/W 3.0 2.3W 2.5 2.0 1.6W 1.5 1.0 0.5 0 The value of Power consumption:in glass epoxy board measuring70mm x 70mm x 1.6mmt Pd[W] 1 ...
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... BD8372HFP-M,BD8372EFJ-M ●Equivalent-circuit diagram of the terminals Pin No. Pin name 1 STOP 2 PBUS 3 ISETL 4 GND www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. Equivalent-circuit diagram of the terminals VIN (6pin) STOP (1pin) 300kΩ 100kΩ GND (4pin) VIN (6pin) 200kΩ PBUS (28pin) ...
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... BD8372HFP-M,BD8372EFJ-M Pin No. Pin name 5 ISETH 6 VIN 7 IOUT www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. Equivalent-circuit diagram of the terminals VIN (6pin) ISETH (5pin) GND (4pin) - VIN (6pin) IOUT (7pin) GND (4pin) 7/16 Technical Note 2011.04 - Rev.A ...
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... BD8372HFP-M,BD8372EFJ-M ●Function description (Unless otherwise specified, VIN=13V, R Table for operation STIOP VIOUT 10kΩV≦RISETL L 2.V<VIOUT<12.3V H 2V<VIOUT<11.8V L/H VIOUT≦0.6V L/H 12.8V≦VIOUT RISETL<7.5kΩ 125kΩ<RISETL H - 10kΩV≦RISETL L 2.V<VIOUT<12.3V H 2.V<VIOUT<11.8V Protection mode operation voltage VIN LED open 5.5V<VIN≦8V × ...
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... BD8372HFP-M,BD8372EFJ-M ●Timing chart VIN STOP PBUS VIN VIH_STOP STOP VIL_STOP IIOUTH VIOUT IIOUTL ISETL ISETH PBUS www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. VIN IOUT Current Control STOP H/Lmode switch PBUS LED SHORT LED OPEN ISETL ISETH LED OPEN ...
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... BD8372HFP-M,BD8372EFJ-M ●Method of setting current ISETL/ISETH generates a standard Voltage respectively in IC (0.8V typ). A standard current is generated by connecting resistance with ISET terminal, and the current is converted internally and it outputs. +B 1.0000 short protection 0.1000 0.0100 0.0010 1.00E+03 ・L mode(STOP=Low 250[A] IOUT R ISETL ...
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... BD8372HFP-M,BD8372EFJ-M ●Current control at output saturation When VIOUT(=VF) exceeds VIN-0.4V, the current is decreased for a set current. Therefore, because VF decreases due to IF decrease of LED, Threshold VOUT=VIN-0.2V of open detection can be prevented keeping the relation of VIOUT≦VIN-0.4V, and being exceeded. The current control must become IOUT<20µA and IF must select LED for VF not to exceed VUVLO_OPEN by 20µ ...
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... BD8372HFP-M,BD8372EFJ-M ●PROTECT BUS (PBUS) PUBS is an I/O terminal that outputs error and the terminal that detects error. When error occurs because of open/short of external parts etc. , Low is output from Hi(Hi-Z) with PBUS terminal, and it is possible to detect error from the outside. The output current can be turned off by controlling. PUBS to Hi→Low from outside. LED of all rows can control turning off even if open/short circuit of LED occurs because it connects the terminal PUBS of each CH as shown in following figure when driving two or mode LED by useing two or mode this IC ...
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... BD8372HFP-M,BD8372EFJ-M ●Protection function As for this IC, short/open protection of external parts is built into, and it is possible to detect error with the terminal PUBS. ①LED open detecting function When LED connected with the terminal IOUT is opened, open detection is done by the terminal IOUT becomes an overvoltage. ...
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... BD8372HFP-M,BD8372EFJ-M ) and Iomax (Permissible current) ●Pd( Power dissipation The relation between Pd and Iomax LED connected with IOUT is shown. VIN 13V 13.5V HRP7 HPP7 Pd [W] 2.30 0.75 0.60 0.45 0. HTSOP-J8 Pd [W] Iomax 1.10 0.75 0.60 0.45 0. www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. IOUT 8V～11V Current ...
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... BD8372HFP-M,BD8372EFJ-M ●Notes for use 1. Absolute maximum ratings We are careful enough for quality control about this IC. So, there is no problem under normal operation, excluding that it exceeds the absolute maximum ratings. However, this IC might be destroyed when the absolute maximum ratings, such as impressed voltages or the operating temperature range (Topr), is exceeded, and whether the destruction is short circuit mode or open circuit mode cannot be specified ...
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... BD8372HFP-M,BD8372EFJ-M ●Ordering part number Part No. Part No. 8372 HRP7 9.395±0.125 (MAX 9.745 include BURR) 1.905±0.1 8.82±0.1 (6. 0.8875 0.73±0.1 S 1.27 0.08 S HTSOP-J8 4.9±0.1 (MAX 5.25 include BURR) (3.2) + 6° 4° −4° 1PIN MARK ...
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