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iT6801 - SELF-OSCILLATING HALF-BRIDGE DRIVER

Description

iT6801 is a half-bridge driver with programmable oscillator within a SOP-8L package to drive both lower MOSFET and floating upper MOSFET.

It is suitable for electronic ballast of fluorescent lamp.

It is equipped with internal clamp of 17.2 V zener diode, so the VCC voltage is easily regulated.

Features

  • Built in preheat function Lamp open or End-Of-Life detection Micro power start-up Integrated 600 V half-bridge gate driver Increased under-voltage lockout Hysteresis Lower power level-shifting circuit Constant LO, HO pulse widths at startup Lower di / dt gate driver for better noise immunity z Excellent latch immunity on all inputs and outputs z z z z z z z z 3.

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Datasheet Details

Part number iT6801
Manufacturer inerhy
File Size 346.53 KB
Description SELF-OSCILLATING HALF-BRIDGE DRIVER
Datasheet download datasheet iT6801 Datasheet
Additional preview pages of the iT6801 datasheet.

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    Full PDF Text Transcription

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    iT6801 SELF-OSCILLATING HALF-BRIDGE DRIVER 1. Description iT6801 is a half-bridge driver with programmable oscillator within a SOP-8L package to drive both lower MOSFET and floating upper MOSFET. It is suitable for electronic ballast of fluorescent lamp. It is equipped with internal clamp of 17.2 V zener diode, so the VCC voltage is easily regulated. For proper operation assurance and low power startup, it is designed with internal under voltage lockout (UVLO), so it takes little current for supply capacitor voltage to builds up. Oscillator frequency is controlled by the current drawn out from RT, which acts as minimum base frequency. The same current is duplicated internally to double base frequency for preheat. 2.
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