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NCP349 - ON Semiconductor
Manufacturer:
ON Semiconductor
ManyChip's Part#:
MC1242959930
Datasheet:
Datasheet 3D Model
Description:
Positive Overvoltage Protection Controller With Internal Low Ron Nmos Fet
Stock Locations:
Availability:
272 pcs In Stock
MOQ:
1 pcs
Unit Price:
$ 0

Updated at 17/06/2025 10:30:15(UTC+8)

Certifications

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Description

The NCP349 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 necesary, reducing the system cost and the PCB area of the application board.The NCP349 is able to instantaneously disconnect the output from the input, due to integrated Low R Power NMOS (65 mΩ, if the input voltage exceeds the overvoltage threshold (OVLO) or undervoltage threshold(UVLO).At powerup (EN(BAR) pin = low level), the V exceeds the undervoltage threshold.The NCP349 provides a negative going flag(FLAG(BAR)) output, which alerts the system that a fault has occurred.In addition, the device has ESD-protected input (15 kV Air) when bypassed with a 1.0 µF or larger capacitor.
Features
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Overvoltage Protection up to 28 V
On-Chip Low RDS(on) NMOS Transistor: 65 m
Overvoltage Lockout (OVLO)
Undervoltage Lockout (UVLO)
Internal Soft start
Alert FLAG(BAR) Output
Shutdown EN(BAR) Input
Compliance to IEC61000-4-2 (Level 4), 8.0 kV (Contact), and 15 kV (Air)
ESD Ratings: Machine Model = B, Human Body Model = 3
This is a Pb-Free Device
Package DFN 1.6 x 2.0 mm

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