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AP8012A - PWM CONTROLLER

Description

AP8012A is a high performance offline PSR power switch for low power AC/DC charger and adapter applications.

It operates in primary‐side sensing and regulation.

Consequently, opto‐coupler and A431 could be eliminated.

Features

  • Primary‐side sensing and regulation without A431 and opto‐coupler.
  • High precision constant voltage and current regulation at universal AC input.
  • Multi‐mode PWM/PFM operation for efficiency improving.
  • Integrated 2A 650V MOSFET.
  • Good dynamic response with synchronous rectifier.

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Datasheet Details

Part number AP8012A
Manufacturer AiT Semiconductor
File Size 611.56 KB
Description PWM CONTROLLER
Datasheet download datasheet AP8012A Datasheet

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Full PDF Text Transcription

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AiT Semiconductor Inc. www.ait-ic.com AP8012A PWM CONTROLLER CC/CV PRIMARY‐SIDE POWER SWITCH DESCRIPTION AP8012A is a high performance offline PSR power switch for low power AC/DC charger and adapter applications. It operates in primary‐side sensing and regulation. Consequently, opto‐coupler and A431 could be eliminated. Proprietary Constant Voltage (CV) and Constant Current (CC) control isintegrated as shown in the figure below. In CC control, the current and output power setting can be adjusted externally by the sense resistor Rs at CS pin. In CV control, multi‐mode operations are utilized to achieve high performance and high efficiency. In addition, good load regulation is achieved by the built‐in cable drop compensation.
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