A8435 Description
The A8435 high efficiency charge pump IC offers a simple, low-cost white LED driver solution for portable electronics display applications. Using a proprietary control scheme (1×, 1.5×), the A8435 can output well-matched currents for up to 4 LEDs, while maintaining the highest efficiency over most of the Li-ion battery lifetime. The A8435 accepts an input range of 2.7 to 5.5 V and delivers up to 30 mA for each of...
A8435 Key Features
- Proprietary adaptive control scheme (1×, 1.5×)
- Maximum efficiency, over 92%
- 0.5% LED current matching
- 1 MHz operating frequency
- Flexible dimming control
- Drives up to 4 white LEDs
- 30 mA per LED
- 120 mA total continuous output
- Low input ripple and EMI
- Soft-start limits inrush current
A8435 Applications
- White LED backlights for cellular phones, PDAs