BD81A44EFV-M集成电路（IC）的LED驱动器规格书PDF中文资料

BD81A44EFV-M属于集成电路（IC）的LED驱动器。由罗姆半导体集团制造生产的BD81A44EFV-MLED 驱动器器件属于 LED 驱动器电源管理集成电路 (PMIC) 系列，可通过标称固定电压的电源为负载（通常为发光二极管）提供电流，并且电流可控。它与用于电压调节的类似产品的主要区别在于，这类器件提供较低的反馈电压（以提高系统能效），而且通常可对器件工作点进行外部控制，可在照明应用中用于实现调光功能。

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.

特性 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