© Semiconductor Components Industries, LLC, 2016
April, 2017 − Rev. 9
1 Publication Order Number:
NCV8877/D
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
MARKING
DIAGRAM
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SOIC−8
D SUFFIX
CASE 751
1
8
PIN CONNECTIONS
1 8
2
3
4
7
6
5
(Top View)
DISB
ISNS
GND
GDRV
ROSC
VC
VOUT
VDRV
8877xx = Specific Device Code
xx = 00, 01, 20, 40
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb−Free Package
8877xx
ALYW
G
1
8
Device Package Shipping
ORDERING INFORMATION
NCV887700D1R2G
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.
NCV887701D1R2G
NCV887720D1R2G
SOIC−8
(Pb−Free)
2500 / Tape &
Reel
NCV887740D1R2G
NCV887711D1R2G
NCV887721D1R2G
NCV8877
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2
Figure 1. Typical Application
BATTERY
IN
DISABLE
CC
RC
ROSC
CDRV
Q
DB
LP
VDRV
GND
ISNS
ROSC
VOUT
DISB
GDRV
VC
RSNS
Co
Cg
VOUT
Figure 2. Functional Waveforms
Wake Up Threshold
Wakeup
DISB
(Internal signal)
Battery In
VOUT
Regulation
Sleep Threshold
GDRV
Wake Up Delay
COMP
GDRV Switching Delay
Internal Clamp
Voltage
NRVB440MFS
NVMFS5844NL
PACKAGE PIN DESCRIPTIONS
Pin No.
Pin
Symbol
Function
1 DISB Disable input. This part is disabled when this pin is brought low.
2 ISNS Current sense input. Connect this pin to the source of the external N−MOSFET, through a current−sense res-
istor to ground to sense the switching current for regulation and current limiting.
3 GND Ground reference.
4 GDRV Gate driver output. Connect to gate of the external N−MOSFET. A series resistance can be added from GDRV
to the gate to tailor EMC performance.
5 VDRV Driving voltage. Internally−regulated supply for driving the external N−MOSFET, sourced from VOUT. Bypass
with a 1.0 mF ceramic capacitor to ground.
6 VOUT Monitors output voltage and provides IC input voltage.
7 VC Output of the voltage error transconductance amplifier. An external compensator network from VC to GND is
used to stabilize the converter.
8 ROSC Use a resistor to ground to set the frequency.
NCV8877
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3
ABSOLUTE MAXIMUM RATINGS (Voltages are with respect to GND, unless otherwise indicated)
Rating
Value Unit
Dc Supply Voltage (VOUT) −0.3 to 40 V
Peak Transient Voltage (Load Dump on VOUT) 45 V
Dc Supply Voltage (VDRV, GDRV) 12 V
Dc Voltage (VC, ISNS, ROSC) −0.3 to 3.6 V
Dc Voltage (DISB) −0.3 to 6 V
Dc Voltage Stress (VOUT − VDRV) −0.7 to 40 V
Operating Junction Temperature −40 to 150 °C
Storage Temperature Range −65 to 150 °C
Peak Reflow Soldering Temperature: Pb−Free, 60 to 150 seconds at 217°C 265 peak °C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
PACKAGE CAPABILITIES
Characteristic Value Unit
ESD Capability (All Pins) Human Body Model
Machine Model
2.0
200
kV
V
Moisture Sensitivity Level 1
Package Thermal Resistance Junction−to−Ambient, R
q
JA
(Note 1)
100 °C/W
1. 1 in
2
, 1 oz copper area used for heatsinking.
TYPICAL VALUES
Part No. D
max
f
S
S
a
V
cl
I
src
I
sink
VOUT SCE
NCV887700 83% 170 kHz
34 mV/ms
400 mV 800 mA 600 mA 6.8 V N
NCV887701 83% 170 kHz
53 mV/ms
200 mV 800 mA 600 mA 6.8 V N
NCV887711 83% 170 kHz
53 mV/ms
200 mV 800 mA 600 mA 8.55 V N
NCV887720 83% 170 kHz
53 mV/ms
200 mV 800 mA 600 mA 10 V N
NCV887721 83% 170 kHz
53 mV/ms
200 mV 800 mA 600 mA 10.28 V N
NCV887740 83% 170 kHz
53 mV/ms
200 mV 800 mA 600 mA 12 V N

NCV887701D1R2G

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
Switching Controllers AUTO START-STOP BOOST
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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