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HF920 - flyback regulator

Description

The HF920 is a flyback regulator with a monolithic, 900V MOSFET.

The HF920 provides excellent power regulation in AC/DC applications that require high reliability, such as smart meters, large appliances, industrial controls, and products powered by poor AC grids.

Features

  • such as VCC under-voltage lockout (UVLO), overload protection (OLP), over-voltage protection (OVP), and short-circuit protection (SCP). The HF920 is designed to minimize electromagnetic interference for power line communications (PLC) in home and building automation.

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Full PDF Text Transcription

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HF920 900V, Fixed-Frequency, Offline Regulator The Future of Analog IC Technology w/ Ultra-Low Standby Power Consumption DESCRIPTION The HF920 is a flyback regulator with a monolithic, 900V MOSFET. The HF920 provides excellent power regulation in AC/DC applications that require high reliability, such as smart meters, large appliances, industrial controls, and products powered by poor AC grids. The HF920 requires a minimal number of external components. The HF920 uses peak-current-mode control to provide excellent transient response and easy loop compensation. When the output power falls below a given level, the regulator enters burst mode. The IC consumption is also specially optimized. As a result, the HF920 achieves very low power consumption during standby conditions.
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