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FP131 - Over Current Protection IC

General Description

FP131 is a current detection and over current protection IC.

It includes a current shunt comparator and shutdown comparator with a precision shunt regulator like FP431.

The rail current detection gain can be adjusted with three external resistors.

Key Features

  • Wide Operating Voltage Range: +2.7V~ +28V.
  • Comparator Reference Voltage: 1.25V (2%).
  • Independent Shunt and Supply Voltages.
  • Adjustable Sense Gain.
  • Low Input Offset Voltage.
  • Output Sink Current Capability up to 16mA.
  • Package: SOP-8L Typical.

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Datasheet Details

Part number FP131
Manufacturer Feeling Technology
File Size 446.76 KB
Description Over Current Protection IC
Datasheet download datasheet FP131 Datasheet

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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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Over Current Protection IC FP131 General Description FP131 is a current detection and over current protection IC. It includes a current shunt comparator and shutdown comparator with a precision shunt regulator like FP431. The rail current detection gain can be adjusted with three external resistors. The regulator output CSO pin is connected to a shutdown comparator for driving a protection circuit like a photo-coupler to shutdown the converter’s primary side PWM IC when over current occurs. The voltage shunt regulator has a 1.25V reference for switching power supply secondary output voltage feedback. FP131 can be used for OCP and output voltage feedback function with few external parts.