TPS92641 Description
The TPS92640 and TPS92641 devices are highvoltage, synchronous NFET controllers for buckcurrent regulators. Output current regulation is based on valley current-mode operation using a controlled on-time architecture. This control method eases the design of loop pensation while maintaining nearly constant switching frequency.
TPS92641 Key Features
- 1 VIN Range from 7 V to 85 V
- Wide Dimming Range
- 500:1 Analog Dimming
- 2500:1 Standard PWM Dimming
- 20000:1 Shunt FET PWM Dimming
- Adjustable LED Current Sense Voltage
- 2-Ω, 1-Apeak MOSFET Gate Drivers
- Shunt Dimming MOSFET Gate Driver (TPS92641)
- Programmable Switching Frequency
- Precision Voltage Reference 3 V ±2%