Datasheet Summary
High-Voltage Step-Up LED Driver with UVLO and Open Load Protection
Features
- 36V, 800 m Integrated Switch
- Up to 92% Efficiency
- Drive LED Strings in Constant Current
- 1.3A Peak Input Current Limit:
- ILED up to 200 mA @ 5.0V VIN, 4 White LEDs
- ILED up to 125 mA @ 3.3V VIN, 4 White LEDs
- ILED up to 100 mA @ 4.2V VIN, 8 White LEDs
- Input Voltage Range: 2.4V to 5.5V
- Feedback Voltage Reference: VFB = 300 mV
- Undervoltage Lockout (UVLO):
- UVLO @ VIN Rising: 2.3V, typical
- UVLO @ VIN Falling: 1.85V, typical
- Sleep Mode with 20 nA Typical Quiescent Current
- PWM Operation: 500 kHz Switching Frequency
- Cycle-by-Cycle Current Limiting
- Internal pensation
- Open Load...