IS31FL3197 Description
The IS31FL3197 is a charge pump LED driver with programmable sequence operation for automated RGBW lighting effects. It is capable of driving 4 LEDs up to 10mA (adjustable in 256 current levels and 4096 PWM levels) from a small coin size battery supply. The built−in charge pump structure will automatically toggle between 1x, 1.5x or 2x operation depending on the battery’s state of charge.
IS31FL3197 Key Features
- 2.0V to 3.3V supply voltage
- Charge pump
- 1x, 1.5x, 2x operating modes
- Highly efficient across battery state of charge
- 1MHz constant frequency
- Power saving operating
- Quiescent operating current 700µA (Typ.)
- Shutdown current 1µA (Typ.)
- Support four LEDs
- Resistor sets maximum 10mA output current per LED
IS31FL3197 Applications
- 2.0V to 3.3V supply voltage