NCP112 Datasheet, PDF (1/10 Pages) ON Semiconductor – Supervisory IC for Desktop Power Supply Monitoring

NCP112
Supervisory IC for Desktop
Power Supply Monitoring
The NCP112 is a highly integrated supervisory circuit that
incorporates all the functions necessary for monitoring and
controlling a multi−output switch−mode power supply system. The
NCP112 provides an ability to monitor the status of the power supply
outputs and communicate it to the system controller. The
programmable output delays protect against spurious fault
indicators.
Features
• Under and Overvoltage Protection for 3.3 V, 5.0 V and 12 V
Outputs
• Additional Adjustable Overvoltage Protection Input
• Built−in Hysteresis on all Input Pins
• Programmable Undervoltage Blanking During Power−Up
• Fault Output with 20 mA Sink Capability
• Programmable Remote On/Off Delay Time
• Programmable Power Good Delay Time
• Precision Voltage Reference with 20 mA Source Capability
• Optimized for Low−Cost 100 nF Capacitors
• Enhanced Replacement to the TSM112
• Pb−Free Packages are Available
Typical Applications
• Personal Computer Switch Mode Power Supply Monitoring
• Multi−Output Power Supplies Requiring System Supervision
http://onsemi.com
MARKING
DIAGRAMS
14
1
SOIC−14
D SUFFIX
CASE 751A
NCP112DG
AWLYWW
1
14
1
PDIP−14
P SUFFIX
CASE 646
NCP112P
AWLYYWWG
1
A = Assembly Location
WL = Wafer Lot
Y, YY = Year
WW = Work Week
G = Pb−Free Package
PIN CONNECTIONS
VS33
VS5
VS12
ADJ
PGI
CTUV
GND
VCC
FAULT
PGO
CTPG
CTREMOTE
REMOTE
VREF
PDIP−14, SOIC−14
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
© Semiconductor Components Industries, LLC, 2006
1
October, 2006 − Rev. 3
Publication Order Number:
NCP112/D