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BD8112EFV-M Datasheet(PDF) 1 Page - Rohm |
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BD8112EFV-M Datasheet(HTML) 1 Page - Rohm |
1 / 23 page 1/22 www.rohm.com 2011.08 - Rev.C © 2010 ROHM Co., Ltd. All rights reserved. Power Management ICs for Automotive Body Control White Backlight LED Drivers for Medium to Large LCD Panels (Switching Regulator Type) BD8112EFV-M ● Description BD8112EFV-M is a white LED driver with the capability of withstanding high input voltage (36V MAX). This driver has 2ch constant-current drivers integrated in 1-chip, which each channel can draw up to 150mA max, so that high brightness LED driving can be realized. Furthermore, a current-mode buck-boost DC/DC controller is also integrated to achieve stable operation against voltage input and also to remove the constraint of the number of LEDs in series connection. The brightness can be controlled by either PWM or VDAC techniques. ● Features 1) Input voltage range 5.0 -30 V 2) Integrated buck-boost current-mode DC/DC controller 3) Two integrated LED current driver channels (150 mA max. each channel) 4) PWM Light Modulation (Minimum Pulse Width 25µs) 5) Oscillation frequency accuracy ±5% 6) Built-in protection functions (UVLO, OVP, TSD, OCP, SCP) 7) LED abnormal status detection function (OPEN/ SHORT) 8) HTSSOP-B24 package ● Applications Backlight for display audio, small type panels, etc. ● Absolute maximum ratings (Ta=25℃) Parameter Symbol Ratings Unit Power supply voltage VCC 36 V BOOT , OUTH Voltage VBOOT, VOUTH 41 V SW, CS Voltage VSW, VCS 36 V BOOT-SW Voltage VBOOT-SW 7 V LED output voltage VLED1,2 36 V VREG, OVP, OUTL, FAIL1, FAIL2, LEDEN, ISET, VDAC, PWM, SS, COMP, RT, SYNC, EN voltage VVREG, VOVP, VOUTL, VFAIL1, VFAIL2, VLEDEN, VISET, VVDAC, VPWM, VSS, VCOMP, VRT, VSYNC, VEN -0.3~7 < VCC V Power Consumption Pd 1.10 *1 W Operating temperature range Topr -40~+105 ℃ Storage temperature range Tstg -55~+150 ℃ LED maximum output current ILED 150 *2 *3 mA Junction temperature Tjmax 150 ℃ *1 IC mounted on glass epoxy board measuring 70mm × 70mm × 1.6mm, power dissipated at a rate of 8.8mw/℃ at temperatures above 25℃. *2 Dispersion figures for LED maximum output current and VF are correlated. Please refer to data on separate sheet. *3 Amount of current per channel. No.11039ECT11 |
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