G5904
G5904 is Four Channel High Efficiency White LED Driver manufactured by Global Mixed-mode Technology.
Global Mixed-mode Technology Inc.
Four Channel High Efficiency White LED Driver
Features
- Dynamic 1x/2x Charge Pump Switching
- Up to 80m A (20m A/LED) Drive Capability
- 90% Average Efficiency
- 0.5% (TYP) LED Current Matching
- Wide Current Range per LED [0.1m A ~ 20m A]
- Single Wire EN/Brightness Control
- 2.7V to 5.5V Supply Voltage Range
- < 1µA Shutdown Current
- Output Over-voltage Protection
- Open/Short LED Protection
- Thermal Shutdown Protection
- TDFN2.5X2.5-10 and TQFN3X3-16 Package
Applications
- Mobile Phones
- White LED Backlighting
- Camera Flash LED Lighting
General Description
The G5904 charge pump drives up to four white LEDs with regulated constant current for uniform intensity. By utilizing dynamic 1x/2x charge-pump modes and ultra-low-dropout current regulators, it achieves high efficiency over the 1-cell lithium battery input voltage range. The 250k Hz fixed frequency switching allows for tiny external ponents, and the regulation...
