CAT3224 Description
The CAT3224 is a very high−current integrated flash LED driver which also supports the charging function for a dual−cell supercapacitor applications. Ideal for Li−ion battery−powered systems, it delivers up to 4 A LED flash pulses, far beyond the peak current capability of the battery. Dual−mode 1x/2x charge pump charges the stacked supercapacitor to a nominal voltage of 5.4 V, while an active balance control...
CAT3224 Key Features
- 2 Channels at 2 A Each in Flash Mode
- 2 Channels at 200 mA Each in Torch Mode
- Adjustable Charge Current Limit up to 1000 mA
- Flash/Torch Current Separate Adjustment
- Dual-mode 1x/2x Charge Pump
- Dual Cell Supercapacitor Balancing
- Flash Safety Timer and Ready Flag
- Supercapacitor Continuous Charging
- Shutdown CAP Leakage 3 mA
CAT3224 Applications
- 2 Channels at 2 A Each in Flash Mode
- 2 Channels at 200 mA Each in Torch Mode
- Adjustable Charge Current Limit up to 1000 mA