Power Management ICs for Automotive Body Control
White Backlight LED Drivers
for Medium to Large LCD Panels
(Switching Regulator Type)
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.
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
Backlight for display audio, small type panels, etc.
●Absolute maximum ratings (Ta=25℃)
Power supply voltage
VCC 36 V
BOOT , OUTH Voltage
SW, CS Voltage
LED output voltage
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
Operating temperature range
Storage temperature range
LED maximum output current
150 *2 *3
*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.
© 2010 ROHM Co., Ltd. All rights reserved.
2011.08 - Rev.C