NCV8871 Просмотр технического описания (PDF) - ON Semiconductor
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NCV8871 Datasheet PDF : 12 Pages
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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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