IS31BL3228A Overview
The IS31BL3228A (IS31BL3228B) is a low noise, constant frequency charge pump DC/DC converter for white LED applications. The IS31BL3228A (IS31BL3228B) is capable of driving up to four (six) channels of LEDs at preset 20mA per channel from a 2.8V to 5.5V input. The current sinks may be operated individually or in parallel for driving higher current LEDs.
IS31BL3228A Key Features
- VCC range: 2.8V to 5.5V
- Fully programmable current with single wire
- 14 current levels
- Drives up to four (IS31BL3228A)/six
- No inductors, low noise operation
- Built-in thermal protection
- Automatic soft start
- Low shutdown current: ISD< 3μA
- UTQFN-12 (2mm×2mm) package
- RoHS & Halogen-Free pliance