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HM2741 - High Performance Low Cost Off-line PWM Power Switch

This page provides the datasheet information for the HM2741, a member of the HM2740 High Performance Low Cost Off-line PWM Power Switch family.

Description

HM274X family is a high performance Switch Mode Power Supply Switcher for low power off-line application with minimum components in typical buck solution.

This family has built-in high break down voltage MOSFET to withstand high surge input.

Features

  • Integrated with 650V Pow er MOSFET and HV Startup Circuit.
  • Multi Mode Control with Audio Noise Free Operation.
  • Supports Buck and Buck-Boost Topologies.
  • Default 12V Output with FB floated.
  • Less than 50mW Standby Power.
  • Green Mode Operation for High Efficiency.
  • Good Line and Load Regulation.
  • Built-in Soft Start.
  • Build in Protections:.
  • Over Load Protection (OLP).
  • Cycle-by-Cycle Current Limiting (OCP).
  • Output OVP.
  • VDD OVP, UVLO & Clam.

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Datasheet preview – HM2741

Datasheet Details

Part number HM2741
Manufacturer H&M semi
File Size 411.94 KB
Description High Performance Low Cost Off-line PWM Power Switch
Datasheet download datasheet HM2741 Datasheet
Additional preview pages of the HM2741 datasheet.

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Full PDF Text Transcription

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HM2740/HM2741 High Performance Low Cost Off-line PWM Power Switch FEATURES  Integrated with 650V Pow er MOSFET and HV Startup Circuit  Multi Mode Control with Audio Noise Free Operation  Supports Buck and Buck-Boost Topologies  Default 12V Output with FB floated  Less than 50mW Standby Power  Green Mode Operation for High Efficiency  Good Line and Load Regulation  Built-in Soft Start  Build in Protections:  Over Load Protection (OLP)  Cycle-by-Cycle Current Limiting (OCP)  Output OVP  VDD OVP, UVLO & Clamp  Available with SOP-8 Package APPLICATIONS  Small Home Appliance  Industry Controls TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION HM274X family is a high performance Switch Mode Power Supply Switcher for low power off-line application with minimum components in typica
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