TB62771FTG Overview
TB62771FTG is a large-current LED driver IC incorporating DC/DC controller for high-power LED systems. This IC can drive high-intensity and large-current LED connected to 4 constant current sinks. This IC is for driving backlight of white LEDs for large LCD.
TB62771FTG Key Features
- Input voltage range : 4.75 V to 40 V
- Built in current mode DC/DC controller
- Switching frequency: Set by the resistance connected to RT terminal (200 kHz to 2.0 MHz), Synchronization with external
- 4ch constant current driver: Sink current 20 mA to 150 mA Current accuracy +/- 2% (ILED = 100 mA, between channels)
- Dimming control: Input PWM range 100 Hz to 30 kHz Minimum pulse width of input PWM 330 ns
- Detection circuit: VIN under voltage lockout (UVLO(VIN)) VCC under voltage lockout (UVLO(VCC)) LED open detection LED sh
- Soft start function
- Output delay function
- Shutdown consumption current 40 µA (max)
- IC package:P-WQFN20-0404-0.50-002