PE23108 Overview
The PE23108 is an ultra-high efficiency DC-DC converter solution with integrated programmable current sinks that drive up to eight strings of LEDs. The PE23108 integrates all MOSFETs and their control and driver circuitry. With its proprietary architecture, the PE23108 provides the highest efficiency up to 96% possible in a pact 3.445 mm x 2.095 mm WLCSP 30-pin package.
PE23108 Key Features
- Synchronous DC-DC converter with integrated FETs
- 2- and 3-cell Li-ion battery input voltage for LED boost: 4.5V to 15V
- 2.7V to 5.5V IC input voltage
- Proprietary architecture for ultra-high LED efficiency, up to 96%
- Integrated output disconnect switch
- Up to 42V output for maximum flexibility in assignment of LEDs to strings and selection of LED forward voltage
- Up to 12-bit dimming resolution with an additional 3-bit dithering
- Linear/logarithmic analog and PWM dimming for maximum flexibility and resolution
- Phase-shifted PWM dimming among active strings to minimize audible noise
- LED brightness ramp up/down control with programmable ramp rate and linear/ logarithmic ramp profiles