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IR2157 Datasheet FULLY INTEGRATED BALLAST CONTROL IC

Manufacturer: International Rectifier (now Infineon)

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General Description

• Thermal overload protection • Programmable deadtime • Integrated 600V level-shifting gate driver • Internal 15.6V zener clamp diode on VCC • True micropower startup (150uA) • Latch immunity protection on all leads • ESD protection on all leads Packages The IR2157 is a fully integrated, fully protected 600V ballast control IC designed to drive virtually all types of rapid start fluorescent lamp ballasts.

Externally programmable

Overview

ADVANCED INFORMATION Data Sheet No.

PD60108B IR2157 FULLY INTEGRATED BALLAST CONTROL.

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 (mimics a magnetic ballast).

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