NCP372(2009) 데이터 시트보기 (PDF) - ON Semiconductor

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NCP372
(Rev.:2009)

Positive and Negative Overvoltage Protection Controller with Internal Low Ron NMOS FETs and Status FLAG

ON Semiconductor 

NCP372

Positive and Negative

Overvoltage Protection

Controller with Internal

Low Ron NMOS FETs and

Status FLAG

The NCP372 is able to disconnect systems from its output pin

when wrong operating conditions are detected at it’s input. The

system is both positive and negative overvoltage protected up to

±28 V.

This device uses internal NMOS, and therefore, no external device

is necessary, reducing the system cost and the PCB area of the

application board.

The NCP372 is able to instantaneously disconnect the output from

the input, due to integrated Low Ron Power NMOS, if the input

voltage exceeds the overvoltage threshold (OVLO) or undervoltage

threshold (UVLO).

At powerup (EN pin = low level), the Vout turns on 30 ms after the

Vin exceeds the undervoltage threshold.

The NCP372 provides a negative going flag (FLAG) 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 mF or larger capacitor.

Features

• Overvoltage Protection up to 28 V

• Negative Voltage Protection down to −28 V

• Reverse Current Blocking

• On−Chip Low RDS(on) NMOS Transistor: Typical 130 mW

• Overvoltage Lockout (OVLO)

• Undervoltage Lockout (UVLO)

• Soft−Start

• 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 = 2

• 12 Lead LLGA 3x3 mm Package

• This is a Pb−Free and Halogen−Free Device

Applications

• Cell Phones

• Camera Phones

• Digital Still Cameras

• Personal Digital Assistant

• MP3 Players

• GPS

© Semiconductor Components Industries, LLC, 2009

1

April, 2009 − Rev. 0

http://onsemi.com

MARKING

DIAGRAM

1

12 PIN LLGA

MU SUFFIX

CASE 513AK

NCAI

372

ALYWG

G

A

= Assembly Location

L

= Wafer Lot

Y

= Year

W

= Work Week

G

= Pb−Free Package

(Note: Microdot may be in either location)

PIN CONNECTIONS

IN 1

12 OUT

IN 2

11 OUT

GND 3

RES 4

NCP372

10 FLAG

9 EN

RES 5

8 NC

RES 6

(Top View)

7 GND

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 11 of this data sheet.

Publication Order Number:

NCP372/D

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