TPS92640 Datasheet (Texas Instruments) - Synchronous Buck Controllers

TPS92640, Synchronous Buck Controllers

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 compensation while maintaining nearly

TPS92640 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 Gat