White Backlight LED Driver
For Medium to Large LCD Panels
(Switching Regulator Type)
BD8119FM-M is a white LED driver with the capability
to withstand high input voltage (36V Max).
This driver has 4ch constant-current drivers integrated
in 1-chip. Each channel can draw up to 150mA max for
driving high brightness on LED. A current-mode
buck-boost DC/DC controller is also integrated to
achieve stable operation against unstable car-battery
voltage input. This also removes the constraint of the
number of LEDs in series connection. The brightness
can be controlled by either PWM or VDAC techniques.
Input Supply Voltage Range:
LED Maximum Output Current:
Operating Temperature Range:
5.0V to 30V
-40°C to +95°C
W(Typ) x D(Typ) x H(Max)
■ Integrated buck-boost current-mode DC/DC
■ Four integrated LED current driver channels
(150mA Max each channel)
■ PWM Light Modulation
(Minimum Pulse Width 25µs)
■ Built-in protection functions
(UVLO, OVP, TSD, OCP, SCP)
■ Abnormal status detection function
18.50mm x 9.90mm x 2.41mm
Backlight for car navigation, dashboard panels, etc.
〇Product structure : Silicon monolithic integrated circuit
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 14 • 001
〇This product has no designed protection against radioactive rays