Description
RT4831A Four-Channel LCD Backlight Driver with Integrated Bias Power General .
The RT4831A is an integrated four-channel backlight WLED driver with LCD bias supply for portable device.
Features
* System
* Hardware Enable Pin
* I2C Controlled Interface
* Over-Temperature Protection
Backlight WLED Driver
* 2.7V to 5V Input Voltage Range
* Drives Up to 4P8S WLED Configuration (29V
Maximum Output Voltage)
* External PWM Input and I2C Brightness Control
* 11 Bit Expone
Applications
* LCD Panels with up to 32 LEDs
* Smartphone
* Tablet
Copyright © 2020 Richtek Technology Corporation. All rights reserved. DS4831A-05 July 2020
is a registered trademark of Richtek Technology Corporation. www. richtek. com 1
RT4831A
Marking Information
7HW
7H : Product Code W : Date