LP8555 Overview
The LP8555 is a high efficiency LED driver with integrated dual DC-DC boost converters. It has 12 high-precision current sinks that can be controlled by a PWM input signal, an I2C master, or both. Dual-boost configuration of LP8555 shares the load to two inductors and allows thinner overall solution size and better efficiency pared to single-boost solutions.
LP8555 Key Features
- 1 Dual High-Efficiency DC/DC Boost Converters
- 2.7-V to 20-V VDD Range
- LED String Count Auto-Detection
- Phase-Shifted PWM Mode for Reduced Audible
- PWM Input Duty-Cycle and/or I2C-Register
- Hybrid PWM and Current Dimming for Higher LED
- Flexible CABC Support
- Improved Boost EMI Performance with Slew-Rate
- Extensive Fault Detection Schemes