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KA7577 - SMPS Controller

Datasheet Summary

Description

KA7577 is fixed frequency PWM controller and specially designed for SMPS to get regulated DC voltage from AC power supply.

This integrated circuit has so fast rise and fall output pulse that it can directly drive power transistor as well as power MOSFET.

Features

  • Low Stand-By Current Pulse by Pulse Current Limiting Over Voltage Protection Over Current Protection Integrated Thermal Shutdown Circuit Output Driver Current of ± 2A Totem pole Output.

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Datasheet Details

Part number KA7577
Manufacturer Fairchild
File Size 52.74 KB
Description SMPS Controller
Datasheet download datasheet KA7577 Datasheet
Additional preview pages of the KA7577 datasheet.

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Full PDF Text Transcription

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www.fairchildsemi.com KA7577 SMPS Controller Features • • • • • • • Low Stand-By Current Pulse by Pulse Current Limiting Over Voltage Protection Over Current Protection Integrated Thermal Shutdown Circuit Output Driver Current of ± 2A Totem pole Output Description KA7577 is fixed frequency PWM controller and specially designed for SMPS to get regulated DC voltage from AC power supply. This integrated circuit has so fast rise and fall output pulse that it can directly drive power transistor as well as power MOSFET. This device features high speed and high sensitive current limiting. Protection circuitry include current limiting function against short and over current at secondary side, owing to the integrated timertype-protection circuit. 16-DIP 1 20-SOP 1 Internal Block Diagram Rev.
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