BD83A14EFV-M中文资料罗姆数据手册PDF规格书

General Description

This IC is a white LED driver for LCD backlight.

It has 4 ch current drivers for LED drive, making it ideal for

high brightness LED drive. LED pin maximum voltage is 50

V, making it suitable for driving medium LCD panels.

The dimming is controlled by the PWM signal and can be

set up to 20,000: 1@100 Hz. It also supports analog

dimming and can accommodate even higher brightness

ranges by combining with PWM dimming. DC/DC

converters can be controlled for boost applications, and the

input operating voltage range is 4.5 V to 48.0 V.

特性 Features

◼ AEC-Q100 Qualified(Note 1)

◼ Functional Safety Supportive Automotive Products

◼ Built-in 4 ch Current Driver for LED Driver

◼ Current Mode Boost DC/DC Converter

◼ Load Switch (M1) Control Pin

◼ DC Dimming Function by Pulse Input

◼ PWM Dimming

(20,000: 1@100 Hz, 100 Hz to 25 kHz)

◼ Spread Spectrum Function

◼ DC/DC Converter Oscillation Frequency External

Synchronization Function

◼ LSI Protect Functions (UVLO, OVP, TSD, OCP)

◼ LED Anode/Cathode Short Circuit Protection Function

◼ LED Open/Short Protection Function

(Note 1) Grade 1

Applications

◼ Automotive CID (Center Information Display) Panel

◼ Navigation

◼ Cluster Panel

◼ HUD (Head Up Display)

◼ Other Small and Medium Sized LCD Panel for

Automotive