RT8543 Overview
The RT8543 is a high efficiency white LED driver. It is designed for LCD panel that employs an LED array as the lighting source. An integrated switch current mode Boost controller drives six strings in parallel and supports up to 10 pieces of LEDs per string.
RT8543 Key Features
- Wide Input Voltage : VIN 2.5V to 24V
- High Output Voltage : VOUT up to 43V
- Current Mode Boost Regulator
- Adjustable Full Channel Current from 5mA to 50mA and Matched to 2%
- Channel Current Regulation with ±3% Accuracy
- Dimming Controls Direct PWM Dimming up to 20kHz and Minimum On-Time to 500ns PWM to Analog Dimming up to 20kHz with
- Built-In Soft-Start to Prevent Inrush Current without External Capacitor
- Disconnects LED in Shutdown
- Protection Strings Open Detection Current Limit Protection Adjustable Over-Voltage Protection Over-Temperature P
- 20-Lead WQFN and UQFN Package