LP8552 Overview
The LP8552 is a white LED driver with integrated boost converter. It has six adjustable current sinks which can be controlled by PWM input or with I2Cpatible serial interface. The boost converter has adaptive output voltage control based on the LED driver voltages.
LP8552 Key Features
- 1 High-Voltage DC/DC Boost Converter with Integrated FET with Four Switching Frequency Options: 156/312/625/1250 kHz
- 2.7-V to 22-V 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-patible and PWM Brightness Control
- Automatic PWM & Current Dimming for Improved
- PWM Output Frequency and LED Current set
- Optional Synchronization to Display VSYNC Signal
- 6 LED Outputs with LED Fault (Short/Open)