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TPS92640 Datasheet Synchronous Buck Controllers

Manufacturer: Texas Instruments

Overview: Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS92640, TPS92641 SNVS902A – OCTOBER 2012 – REVISED OCTOBER 2015 TPS9264x Synchronous Buck Controllers for Precision Dimming LED.

General 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 compensation while maintaining nearly constant switching frequency.

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%.
  • Input UVLO and Output OVP.
  • Low Power Shutdown Mode and Thermal Shutdown.

TPS92640 Distributor & Price

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