LP8545 Overview
Description
The LP8545 is a white LED driver with integrated boost converter. It has six adjustable current sinks which can be controlled by PWM input or with I2Ccompatible serial interface.
Key Features
- 2 High-Voltage DC/DC Boost Converter with Integrated FET with Four Switching Frequency Options: 156/312/625/1250 kHz
- Configurable for Use with External FET for Applications Needing Higher Output Voltage
- 2.7V – 22V Input Voltage Range to Support 1x…5x Cell Li-Ion Batteries
- Programmable PWM Resolution – 8 to 13 True Bit (Steady State) – Additional 1 to 3 Bits Using Dithering During Brightness Changes
- I2C and PWM Brightness Control
- PWM Output Frequency and LED Current Set Through Resistors
- Optional Synchronization to Display VSYNC Signal
- 6 LED Outputs with LED fault (Short/Open) Detection
- Low Input Voltage, Over-Temperature, Over- Current Detection and Shutdown
- Minimum Number of External Components
