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NCP4350 - Supervisory IC

Description

Description The pin is used for a power good input signal.

Ground This is an open drain output for Fault protection shutdown.

Features

  • ăIndividual Overvoltage and Undervoltage Monitoring for +3.3ĂV, +5ĂV, +12ĂVA, +12ĂVB Outputs and Lockout.
  • ăIndividual Overcurrent Monitoring for +3.3ĂV, +5ĂV, +12ĂVA, +12ĂVB Outputs and Lockout.
  • ăFault Output with 5 mA of Sink Capability.
  • ăRemote On/Off.
  • ăPower Good Output Signal with 5 mA of Sink Capability.
  • ăBuilt-in Delays for OVP, UVP, and Overload to avoid False Tripping.
  • ăLow Power Consumption 10 mW at VCC = 5ĂV Typical.
  • ăOve.

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Datasheet preview – NCP4350

Datasheet Details

Part number NCP4350
Manufacturer ON Semiconductor
File Size 130.12 KB
Description Supervisory IC
Datasheet download datasheet NCP4350 Datasheet
Additional preview pages of the NCP4350 datasheet.

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Full PDF Text Transcription

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NCP4350 Supervisory IC for Desktop Power Supply Monitoring The NCP4350 provides all the necessary functions to monitor and control a multi-output power supply providing fault protection shutdown signals, and On/Off control. The NCP4350 provides the ability to monitor the status of the +5 Vdc, +12 Vdc (A and B outputs), and +3.3 Vdc output (voltage and current). The controller has built in delay to prevent tripping during transient conditions to eliminate false shutdowns. OVP/UVP (OverVoltage/UnderVoltage Protection) monitors 3.3ĂV, 5ĂV, and dual 12ĂV to protect the power supply, FPOB output goes high when one of these supply voltages exceed their limits. OCP (OverCurrent Protection) monitors 3.3ĂV, 5ĂV, and dual 12ĂV output current.
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