General Description

BD81A44EFV-M / BD81A44MUV-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

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