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IRS2540PBF - (IRS254xxPBF) LED BUCK REGULATOR CONTROL IC

General Description

The IRS254(0,1) are high voltage, high frequency buck control ICs for constant LED current regulation.

They incorporate a continuous mode time-delayed hysteretic buck regulator to directly control the average load current, using an accurate on-chip bandgap voltage reference.

The application is inherently protected against short circuit conditions, with the ability to easily add opencircuit protection.

Overview

Data Sheet No.

PD60293 IRS254(0,1)(S)PbF LED BUCK REGULATOR CONTROL.

Key Features

  • 200 V (IRS2540) and 600 V (IRS2541) half bridge driver.
  • Micropower startup (.