T6313A
FEATURES
- 4 Current Source Outputs
- 20m A Full Scale Current for each LED ..
- Power efficency up to 93%
- 32 levels for brightness
- 2 wires interface
- Low Noise Constant Frequency Operation
- High Accuracy Brightness Matching
- White LED Backlighting
- 0.5% LED current matching
- Automatic Soft-Start
- No External Inductors, Schottky, or Zener Diode and Resistor Required
- 500KHz Switching Frequency (1MHz optional)
- 2.7V to 5.5V supply voltage
- Shutdown current is less 1u A
- Temperature Range -40 to 85°C
- 16-Pin QFN
GRNERAL DESCRIPTION
The T6313A is a charge pump DC/DC converter driving a constant current up to 20m A for each LED of total four LEDs. It is a high efficiency device that is up to 93%, and it would be a suitable driving device for LED back light application. The T6313A operates in a 1.5x charge pump mode based on input voltage from 2.7v to 5.5v. Operation frequency is at fixed high frequencies either 500KHz or 1MHz typically. It can drive 4 white LEDs connected in...
