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IR21571S Datasheet Fully Integrated Ballast Control Ic

Manufacturer: International Rectifier (now Infineon)

Overview: Data Sheet PD No. 60179 revM Not remended for new design: please use IRS21571D IR21571(S) & (PbF) FULLY INTEGRATED BALLAST CONTROL.

General Description

The IR21571 is a fully integrated, fully protected 600V ballast control IC designed to drive virtually all types of rapid start fluorescent lamp ballasts.

Externally programmable

Key Features

  • Programmable preheat time & frequency.
  • Programmable ignition ramp.
  • Protection from failure-to-strike.
  • Lamp filament sensing & protection.
  • Protection from operation below resonance.
  • Protection from low-line condition.
  • Automatic restart for lamp exchange.
  • Thermal overload protection.
  • Programmable deadtime.
  • Integrated 600V level-shifting gate driver.
  • Internal 15.6V zener clamp diode on VCC.

IR21571S Distributor