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HR1000 - Resonant Half-Bridge Controller

General Description

The HR1000 is a controller designed specifically for the resonant half-bridge topology.

It provides two drive-signal channels that output complementary signals at a 50% duty cycle.

Key Features

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  • including latched shutdown, auto-recovery, brown-out protection, and overtemperature protection.
  • improve converter design safety without engendering additional circuit complexity. The IC provide 1.5A/2A source/sink capability for both high-side and low-side gate drivers. The HR1000 is available in a SOIC-16 package.

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Full PDF Text Transcription (Reference)

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HR1000 Resonant Half-Bridge Controller DESCRIPTION The HR1000 is a controller designed specifically for the resonant half-bridge topology. It provides two drive-signal channels that output complementary signals at a 50% duty cycle. An internal fixed dead-time of 350ns between the two complementary gate signals guarantees zero-voltage switching during the transient and enables high-frequency operation. The integrated bootstrap diode simplifies the external driving circuit for the high-side switch. It can withstand up to 600V with immunity against high dV/dt noise. Modulating the switching frequency regulates the topology output voltage. A programmable oscillator can set both the maximum and minimum switching frequencies .