Datasheet > NCP391

NCP391

更新时间： 2024-09-20 12:22:47

品牌	Logo	应用领域
安森美 - ONSEMI		控制器
页数	文件大小	规格书
12页	305K
描述
Positive Overvoltage Protection Controller with Internal Low RON NMOS FET

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NCP391 数据手册

NCP391

Positive Overvoltage

Protection Controller with

Internal Low R_ONNMOS FET

The NCP391 is able to disconnect the systems from its output pin

when wrong input operating conditions are detected. The system is

positive overvoltage protected up to +28 V.

This device uses an internal NMOS and therefore, no external

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

application board.

http://onsemi.com

MARKING

DIAGRAM

The NCP391 is able to instantaneously disconnect the output from

WLCSP6

FC SUFFIX

CASE 499BP

XXXXG

the input, due to integrated Low R

Power NMOS, if the input

AYWW

voltage exceeds the overvoltage threshold (OVLO) or falls below the

undervoltage threshold (UVLO).

XXXX = Specific Device Code

At powerup (EN pin = low level), the V turns on t time after

out

= Assembly Location

= Year

the V exceeds the undervoltage threshold.

The NCP391 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.

WW = Work Week

= Pb−Free Package

PIN CONNECTIONS

Features

• Overvoltage Protection up to 28 V

• On−Chip Low R

NMOS Transistor

DS(on)

• Internal Charge Pump

GND

• Overvoltage Lockout (OVLO)

• Undervoltage Lockout (UVLO)

• Soft−Start

OUT

FLAG

OUT

FLAG

• Alert FLAG Output

• Shutdown EN Input

(Top View)

• Compliance to IEC61000−4−2 (Level 4)

8.0 kV (Contact)

15 kV (Air)

ORDERING INFORMATION

See detailed ordering, marking and shipping information in the

package dimensions section on page 11 of this data sheet.

• ESD Ratings: Machine Model = B

Human Body Model = 2

• WLCSP6 1.31x1.04 mm Package

• This is a Pb−Free Device

Applications

• Cell Phones

• Camera Phones

• Digital Still Cameras

• Personal Digital Applications

• MP3 Players

Semiconductor Components Industries, LLC, 2011

Publication Order Number:

August, 2011 − Rev. 1

NCP391/D

12 3 4 5 6 7...12

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