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FP133 - Over Current Protection IC

General Description

FP133 is a main rail 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

  • Independent Power Supply Voltage: 2.7 to 28V.
  • Wide Operating Temperature Range: -20℃~ +105℃.
  • Independent Shunt and Supply Voltage.
  • Low Input Offset.

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Datasheet Details

Part number FP133
Manufacturer Feeling Technology
File Size 275.75 KB
Description Over Current Protection IC
Datasheet download datasheet FP133 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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FP133 Over Current Protection IC With Shunt Regulator General Description FP133 is a main rail 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 primary side PWM IC when over current occurs. The voltage shunt regulator has a 2.5V reference for switching power supply secondary output voltage feedback. FP133 can be used for OCP and output voltage feedback function with few external parts.