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JW1551 - Active Clamp Flyback Controller

Datasheet Summary

Description

JW®1551 is an active clamp flyback controller for offline flyback converter applications.

The JW1551 can be adopted to reduce switching loss and provide high efficiency in whole load range.

JW1551 provide two control outputs, the main power switch control and the active clamp switch control.

Features

  • Boundary Mode Operation at Heavy Load.
  • DCM Operation at Light Load.
  • Burst Mode Control.
  • Built-in Soft-start Function.
  • X-cap Discharge Function.
  • Include a Boost Converter, Allow Vin Range 2.5-38V.
  • Maximum Frequency Setting with a Single External Resistor.
  • Adjustable Line Compensation.
  • High Switching Frequency up to 1.5MHz.
  • Reliable Fault Protections: VIN OVP/UVP, VS OVP/UVP, SCP, Brown-In/Out, OTP, CS Open and Short Protection.
  • QFN4X4-20 Pac.

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Datasheet preview – JW1551

Datasheet Details

Part number JW1551
Manufacturer JoulWatt
File Size 818.72 KB
Description Active Clamp Flyback Controller
Datasheet download datasheet JW1551 Datasheet
Additional preview pages of the JW1551 datasheet.

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Full PDF Text Transcription

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JW1551 Active Clamp Flyback Controller DESCRIPTION JW®1551 is an active clamp flyback controller for offline flyback converter applications. The JW1551 can be adopted to reduce switching loss and provide high efficiency in whole load range. JW1551 provide two control outputs, the main power switch control and the active clamp switch control. JW1551 also has X-cap discharge function to discharge the X-cap when the input is unplugged, which lowers standby power. The JW1551 is available in QFN4X4-20 package. Company’s Logo is Protected, “JW” and “JOULWATT” are Registered Trademarks of JoulWatt technology Inc.
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