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NCP1239FD065R2G

Description
SWITCHING CONTROLLER
CategoryPower/power management    The power supply circuit   
File Size234KB,25 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
Environmental Compliance
Download Datasheet Parametric Compare View All

NCP1239FD065R2G Overview

SWITCHING CONTROLLER

NCP1239FD065R2G Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
package instructionSOIC-8/7
Reach Compliance Codecompliant
Other featuresCONFIGURED AS FLYBACK CONVERTER
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage35 V
Minimum input voltage9.4 V
Nominal input voltage11 V
JESD-30 codeR-PDSO-G7
length4.9 mm
Number of functions1
Number of terminals7
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Maximum seat height1.75 mm
surface mountYES
Maximum switching frequency65 kHz
Temperature levelAUTOMOTIVE
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width3.9 mm
Base Number Matches1
NCP1239
Fixed Frequency
Current‐Mode Controller for
Flyback Converter
The NCP1239 is a fixed-frequency current-mode controller
featuring a high-voltage start-up current source to provide a quick and
lossless power-on sequence. This function greatly simplifies the
design of the auxiliary supply and the V
CC
capacitor by activating the
internal start-up current source to supply the controller during start-up,
transients, latch, stand-by etc.
With a supply range up to 35 V, the controller hosts a jittered 65 or
100-kHz switching circuitry operated in peak current mode control.
When the power on the secondary side starts to decrease, the controller
automatically folds back its switching frequency down to minimum
level of 26 kHz. As the power further goes down, the part enters skip
cycle while limiting the peak current that insures excellent efficiency
in light load condition.
NCP1239 features a timer-based fault detection circuitry that
ensures a quasi-flat overload detection, independent of the input
voltage.
Features
www.onsemi.com
SOIC−7
CASE 751U
PIN CONNECTIONS
Fault
FB
CS
GND
1
8
HV
2
3
6
VCC
DRV
4
5
Fixed-Frequency 65-kHz or 100-kHz Current-Mode Control
Operation
Frequency Foldback Down to 26 kHz and Skip Mode to
Maximize Performance in Light Load Conditions
Adjustable Over Power Protection (OPP) Circuit
High-Voltage Current Source with Brown-Out (BO) Detection
Internal Slope Compensation
Internal Fixed Soft-Start
Frequency Jittering in Normal and Frequency Foldback Modes
64-ms Timer-Based Short-Circuit Protection with Auto-Recovery
or Latched Operation
Pre-Short Ready for Latched OCP Versions
Latched OVP on VCC (NCP1239 A, B, D, F or G Versions) –
Autorecovery for C and E Versions
Latched OVP/OTP Input for Improved Robustness
35-V V
CC
Operation
±500
mA Peak Source/Sink Drive Capability
Internal Thermal Shutdown
Extremely Low No-Load Standby Power
Pin-to-Pin Compatible with the Existing NCP1236/1247 Series
These Devices are Pb-Free and are RoHS Compliant
MARKING DIAGRAM
8
1239xfff
ALYWX
G
1
1239xfff = Specific Device Code
x = A, B, C, D, E, F or G
fff = 065 or 100
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
ORDERING INFORMATION
See detailed ordering and shipping information on page 24 of
this data sheet.
Typical Applications
AC-DC Converters for TVs, Set-Top Boxes and Printers
Offline Adapters for Notebooks and Netbooks
©
Semiconductor Components Industries, LLC, 2016
1
May, 2016 − Rev. 10
Publication Order Number
NCP1239/D

NCP1239FD065R2G Related Products

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Description SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER
Is it Rohs certified? conform to conform to conform to conform to conform to conform to
package instruction SOIC-8/7 SOIC-8/7 SOIC-8/7 SOIC-8/7 SOIC-8/7 SOIC-8/7
Reach Compliance Code compliant compliant compliant compliant compliant compliant
Other features CONFIGURED AS FLYBACK CONVERTER CONFIGURED AS FLYBACK CONVERTER CONFIGURED AS FLYBACK CONVERTER CONFIGURED AS FLYBACK CONVERTER CONFIGURED AS FLYBACK CONVERTER CONFIGURED AS FLYBACK CONVERTER
Analog Integrated Circuits - Other Types SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER
control mode CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 35 V 35 V 35 V 35 V 35 V 35 V
Minimum input voltage 9.4 V 9.4 V 9.4 V 9.4 V 9.4 V 9.4 V
Nominal input voltage 11 V 11 V 11 V 11 V 11 V 11 V
JESD-30 code R-PDSO-G7 R-PDSO-G7 R-PDSO-G7 R-PDSO-G7 R-PDSO-G7 R-PDSO-G7
length 4.9 mm 4.9 mm 4.9 mm 4.9 mm 4.9 mm 4.9 mm
Number of functions 1 1 1 1 1 1
Number of terminals 7 7 7 7 7 7
Maximum operating temperature 125 °C 125 °C 125 °C 125 °C 125 °C 125 °C
Minimum operating temperature -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SOP SOP SOP SOP SOP SOP
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE
Peak Reflow Temperature (Celsius) NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
Maximum seat height 1.75 mm 1.75 mm 1.75 mm 1.75 mm 1.75 mm 1.75 mm
surface mount YES YES YES YES YES YES
Maximum switching frequency 65 kHz 65 kHz 65 kHz 65 kHz 65 kHz 65 kHz
Temperature level AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE
Terminal form GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING
Terminal pitch 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
width 3.9 mm 3.9 mm 3.9 mm 3.9 mm 3.9 mm 3.9 mm
Base Number Matches 1 1 1 1 1 1
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