General Description
BD81A74EFV-M / BD81A74MUV-M is a white LED
driver with the capability of withstanding high input
voltage (maximum 35 V). This driver has 4ch constantcurrent
drivers in 1-chip, where each channel can draw
up to 120 mA (Max), and it is suitable for high
illumination LED drive. Furthermore, a buck-boost
current mode DC/DC converter is also built to achieve
stable operation during power voltage fluctuation.
Light modulation (10,000:1@100 Hz dimming
function) is possible by PWM input.

Features
AEC-Q100 Qualified*1
4ch Current Driver for LED Drive
Buck-Boost Current Mode DC/DC Converter
Control DC/DC Converter Oscillation Frequency by
External Synchronized Signal
Spread Spectrum Function
LSI Protection Function (UVLO, OVP, TSD, OCP, SCP)
LED Abnormality Detection Function (Open/Short)
VOUT Discharge Function (Buck-Boost Structure
Limitation)

Applications
Automotive CID (Center Information Display) Panel
Car Navigation
Cluster Panel
HUD (Head Up Display)
Small and Medium Type LCD Panels for Automotive
Use