NCP3712ASNT1 datasheet(1/8 Pages) ONSEMI

Part #	NCP3712ASNT1

Description	Over Voltage Protected High Side Switch

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September, 2001 – Rev. 2

1

Publication Order Number:

NCP3712ASNT1/D

NCP3712ASNT1

Over Voltage Protected

High Side Switch

This switch is primarily intended to protect loads from transients by

isolating the load from the transient energy rather than absorbing it.

Features

• Capable of Switching Loads of up to 200 mA without External

Rboost

• Switch Shuts Off in Response to an Over Voltage Input Transient

• Features Active Turn Off for Fast Input Transient Protection

• Flexible Over Voltage Protection Threshold Set with External Zener

• Automatic Recovery after Transient Decays Below Threshold

• Withstands Input Transients up to 105 V Peak

• Guaranteed Off State with Enbl Input

• ESD Resistant in Accordance with the 2000 V Human Body Model

• Extremely Low Saturation Voltage

Applications Include:

• High Voltage Transient Isolation

• Power Switching to Electronic Modules

• DC Power Distribution in Line Operated Equipment

• Buffering Sensitive Circuits from Poorly Regulated Power Supplies

• Pre–conditioning of Voltage Regulator Input Voltage

Figure 1. Typical Application Circuit

NCP3712ASNT1

Ropt

P. S.

+

–

L

O

A

D

Rboost

SW

Enbl

Vin

Vout

VZ

1 k (min)

or

http://onsemi.com

TSOP–6

(SOT23–6, SC59–6)

CASE 318G

INTERNAL CIRCUIT DIAGRAM/

PIN CONFIGURATION

Enbl

(1)

VZ

(4)

(3)

(6)

(2)

(5)

Vin

Vout

N.C.

Rboost

R2

R1

R3

R4

Q1

Q2

1

6

BAGYW

BAG = Specific Device Code

Y

= Year

W

= Work Week

MARKING

DIAGRAM

Device

Package

Shipping

ORDERING INFORMATION

NCP3712ASNT1

TSOP–6

(SOT23–6, SC59–6)

3000 Units

on 7” Reel

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