LP8550
Description
The LP8550 is a white-LED driver with integrated boost converter.
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 to 5x Cell Li-Ion Batteries
- Programmable PWM Resolution - 8 to 13 True Bits (Steady State) - Additional 1 to 3 Bits Using Dithering During Brightness Changes
- I2C and PWM Brightness Control
- Automatic PWM & Current Dimming for Improved Efficiency
- PWM output frequency and LED Current set through Resistors
- Optional Synchronization to Display VSYNC Signal
- Six LED Outputs with LED Fault (Short/Open) Detection
- Low Input Voltage, Overtemperature, Overcurrent Detection, and Shutdown
