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NCV8871

Automotive Grade Non-Synchronous Boost Controller

ON Semiconductor 

NCV8871

Automotive Grade

Non-Synchronous Boost

Controller

The NCV8871 is an adjustable output non−synchronous boost

controller which drives an external N−channel MOSFET. The device

uses peak current mode control with internal slope compensation. The

IC incorporates an internal regulator that supplies charge to the gate

driver.

Protection features include internally−set soft−start, undervoltage

lockout, cycle−by−cycle current limiting, hiccup−mode short−circuit

protection and thermal shutdown.

Additional features include low quiescent current sleep mode and

externally−synchronizable switching frequency.

Features

• Peak Current Mode Control with Internal Slope Compensation

• 1.2 V ±2% Reference voltage

• Fixed Frequency Operation

• Wide Input Voltage Range of 3.2 V to 40 Vdc, 45 V Load Dump

• Input Undervoltage Lockout (UVLO)

• Internal Soft−Start

• Low Quiescent Current in Sleep Mode

• Cycle−by−Cycle Current Limit Protection

• Hiccup−Mode Overcurrent Protection (OCP)

• Hiccup−Mode Short−Circuit Protection (SCP)

• Thermal Shutdown (TSD)

• This is a Pb−Free Device

http://onsemi.com

8

1

SOIC−8

D SUFFIX

CASE 751

MARKING

DIAGRAM

8

8871xx

ALYW

G

1

8871xx = Specific Device Code

xx = 00, 01, 02, 03, 04

A

= Assembly Location

L

= Wafer Lot

Y

= Year

W

= Work Week

G

= Pb−Free Package

PIN CONNECTIONS

EN/SYNC 1

ISNS 2

GND 3

GDRV 4

8 VFB

7 VC

6 VIN

5 VDRV

(Top View)

ORDERING INFORMATION

Device

Package

NCV887100D1R2G SOIC−8

(Pb−Free)

Shipping†

2500 / Tape &

Reel

NCV887101D1R2G SOIC−8 2500 / Tape &

(Pb−Free)

Reel

NCV887102D1R2G SOIC−8 2500 / Tape &

(Pb−Free)

Reel

NCV887103D1R2G SOIC−8 2500 / Tape &

(Pb−Free)

Reel

NCV887104D1R2G SOIC−8 2500 / Tape &

(Pb−Free)

Reel

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specification

Brochure, BRD8011/D.

© Semiconductor Components Industries, LLC, 2012

1

September, 2012 − Rev. 3

Publication Order Number:

NCV8871/D

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