Secondary Side Controllers | NCP4350

Supervisory IC for Desktop Power Supply

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Overview

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.

  • ATX Computers

  • Individual Overvoltage and Undervoltage Monitoring for +3.3V,+5V, +12VA, +12VB Outputs and Lockout
  • Individual Overcurrent Monitoring for +3.3V, +5V, +12VA, +12VB Outputs and Lockout
  • Fault Output with 5 mA of Sink Capability
  • Remote On/Off
  • Power Good Output Signal with 5 mA of Sink Capability
  • Built-in Delays for OVP, UVP, and Overload to avoid False Tripping
  • Low Power Consumption 10 mW at VCC = 5V Typical
  • Overtemperature Input
  • Wide Power Supply Range (4 V - 16 V)

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