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HR1211 - LLC Controller

General Description

The HR1211 is a multi-mode PFC and current mode LLC combo controller that is configurable via UART interface.

Power-saving technology helps achieve optimized efficiency across the full operating range.

Key Features

  • General System Features: o HV Current Source for Start-Up o Smart X-Capacitor Discharge during AC Dropout, Approved by IEC62368 and IEC60950 o UART Interface for Configurations o User-Friendly GUI for Digital PFC.
  • PFC Controller: o CCM/DCM Multi-Mode PFC Control with High Efficiency across All Loads o Operating Frequency Up to 250kHz o High PF due to Input Capacitor Current Compensation o Configurable Frequency Jittering o Configurable Soft Start and Burst On o Configurable AC Input.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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HR1211 Multi-Mode PFC and Current Mode LLC Controller with Configurable Audible Noise Reduction Control DESCRIPTION The HR1211 is a multi-mode PFC and current mode LLC combo controller that is configurable via UART interface. Power-saving technology helps achieve optimized efficiency across the full operating range. The PFC controller employs a patented, digital average current control scheme to achieve hybrid CCM/DCM operation. Under heavy loads, CCM reduces the peak MOSFET current so the controller can be used across a wider load range. Under light loads, DCM reduces the switching frequency for better efficiency. Burst mode has configurable, digital soft switching to improve both light-load efficiency and audible noise.