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NCP347 - Positive Overvoltage Protection Controller

Datasheet Summary

Description

Pin No.

1 IN POWER Input Voltage Pin.

4 This pin is connected to the power supply.

Features

  • Overvoltage Protection up to 28 V.
  • On.
  • Chip Low RDS(on) NMOS Transistor: 65 mW.
  • Internal Charge Pump.
  • Overvoltage Lockout (OVLO).
  • Undervoltage Lockout (UVLO).
  • Internal 50 ms Startup Delay.
  • Alert FLAG Output.
  • Shutdown EN Input.
  • Compliance to IEC61000.
  • 4.
  • 2 (Level 4) 8.0 kV (Contact) 15 kV (Air).
  • ESD Ratings: Machine Model = B Human Body Model = 3.
  • 10 Lead WDFN 2.5x2 mm Package.

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Datasheet preview – NCP347

Datasheet Details

Part number NCP347
Manufacturer ON Semiconductor
File Size 478.74 KB
Description Positive Overvoltage Protection Controller
Datasheet download datasheet NCP347 Datasheet
Additional preview pages of the NCP347 datasheet.

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Full PDF Text Transcription

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NCP347 Positive Overvoltage Protection Controller with Internal Low RON NMOS FET and Status FLAG The NCP347 is able to disconnect the systems from its output pin in case wrong input operating conditions are detected. The system is positive overvoltage protected up to +28 V. Due to this device using internal NMOS, no external device is necessary, reducing the system cost and the PCB area of the application board. The NCP347 is able to instantaneously disconnect the output from the input, due to integrated Low RON Power NMOS (65 mW), if the input voltage exceeds the overvoltage threshold (OVLO) or undervoltage threshold (UVLO). At powerup (EN pin = low level), the Vout turns on 50 ms after the Vin exceeds the undervoltage threshold.
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