NCV8877 Datasheet, PDF (1/15 Pages) ON Semiconductor – Automotive Grade Start-Stop Non-Synchronous Boost Controller

NCV8877
Automotive Grade
Start-Stop Non-Synchronous
Boost Controller
The NCV8877 is a Non-Synchronous Boost controller designed to
supply a minimum output voltage during Start-Stop vehicle operation
battery voltage sags. The controller 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, cycle-by-cycle current limiting and
thermal shutdown.
Additional features include low quiescent current sleep mode
operation. The NCV8877 is enabled when the supply voltage drops
below the wake up threshold. Boost Operation is initiated when the
supply voltage drops below the regulation set point.
Features
• Automatic Enable Below Wake Up Threshold Voltage (Factory
Programmable)
• Override Disable Function
• Boost Mode Operation at Regulation Set Point
• $2% Output Accuracy Over Temperature Range
• Peak Current Mode Control with Internal Slope Compensation
• Externally Adjustable Frequency Operation
• Wide Input Voltage Range of 2 V to 40 V, 45 V Load Dump
• Low Quiescent Current in Sleep Mode (<12 mA Typical)
• Cycle−by−Cycle Current Limit Protection
• Hiccup−Mode Overcurrent Protection (OCP)
• Thermal Shutdown (TSD)
• This is a Pb−Free Device
Typical Applications
• Applications Requiring Regulated Voltage through Cranking and
Start−Stop Operation
www.onsemi.com
8
1
SOIC−8
D SUFFIX
CASE 751
MARKING
DIAGRAM
8
8877xx
ALYW
G
1
8877xx = Specific Device Code
xx = 00, 01, 20, 40
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
PIN CONNECTIONS
DISB 1
ISNS 2
GND 3
GDRV 4
8 ROSC
7 VC
6 VOUT
5 VDRV
(Top View)
ORDERING INFORMATION
Device
Package
NCV887700D1R2G SOIC−8
(Pb−Free)
NCV887701D1R2G SOIC−8
(Pb−Free)
Shipping^†
2500 / Tape &
Reel
2500 / Tape &
Reel
NCV887720D1R2G SOIC−8 2500 / Tape &
(Pb−Free)
Reel
NCV887740D1R2G 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, 2015
1
October, 2015 − Rev. 5
Publication Order Number:
NCV8877/D