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NCP1207DR2G

Description
0.5 A SWITCHING CONTROLLER, PDSO8
CategoryPower/power management    The power supply circuit   
File Size205KB,18 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
Environmental Compliance
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NCP1207DR2G Overview

0.5 A SWITCHING CONTROLLER, PDSO8

NCP1207DR2G Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerON Semiconductor
Parts packaging codeSOIC
package instructionSOP, SOP8,.25
Contacts8
Reach Compliance Codeunknow
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Nominal input voltage11 V
JESD-30 codeR-PDSO-G8
JESD-609 codee3
length4.9 mm
Humidity sensitivity level3
Number of functions1
Number of terminals8
Maximum output current0.5 A
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP8,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.75 mm
surface mountYES
Switch configurationSINGLE
Maximum switching frequency150 kHz
technologyCMOS
Terminal surfaceTin (Sn)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
width3.9 mm
NCP1207
PWM Current−Mode
Controller for Free Running
Quasi−Resonant Operation
The NCP1207 combines a true current mode modulator and a
demagnetization detector to ensure full borderline/critical
Conduction Mode in any load/line conditions and minimum drain
voltage switching (Quasi−Resonant operation). Due to its inherent skip
cycle capability, the controller enters burst mode as soon as the power
demand falls below a predetermined level. As this happens at low peak
current, no audible noise can be heard. An internal 8.0
ms
timer prevents
the free−run frequency to exceed 100 kHz (therefore below the 150 kHz
CISPR−22 EMI starting limit), while the skip adjustment capability lets
the user select the frequency at which the burst foldback takes place.
The Dynamic Self−Supply (DSS) drastically simplifies the
transformer design in avoiding the use of an auxiliary winding to supply
the NCP1207. This feature is particularly useful in applications where
the output voltage varies during operation (e.g. battery chargers). Due to
its high−voltage technology, the IC is directly connected to the
high−voltage DC rail. As a result, the short−circuit trip point is not
dependent upon any V
CC
auxiliary level.
The transformer core reset detection is done through an auxiliary
winding which, brought via a dedicated pin, also enables fast
Overvoltage Protection (OVP). Once an OVP has been detected, the IC
permanently latches off.
Finally, the continuous feedback signal monitoring implemented with
an Overcurrent Fault Protection (OCP) circuitry makes the final design
rugged and reliable.
Features
http://onsemi.com
MARKING
DIAGRAMS
8
8
1
SOIC−8
D1, D2 SUFFIX
CASE 751
1
8
PDIP−8
N SUFFIX
CASE 626
1
1
1207/P
A
WL, L
YY, Y
WW, W
= Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
1207P
AWL
YYWW
1207
ALYW
8
Pb−Free Packages are Available*
Free−Running Borderline/Critical Mode Quasi−Resonant Operation
Current−Mode with Adjustable Skip−Cycle Capability
No Auxiliary Winding V
CC
Operation
Auto−Recovery Overcurrent Protection
Latching Overvoltage Protection
External Latch Triggering, e.g. Via Overtemperature Signal
500 mA Peak Current Source/Sink Capability
Internal 1.0 ms Soft−Start
Internal 8.0
ms
Minimum T
OFF
Adjustable Skip Level
Internal Temperature Shutdown
Direct Optocoupler Connection
SPICE Models Available for TRANsient Analysis
AC−DC Adapters for Notebooks, etc.
Offline Battery Chargers
Consumer Electronics (DVD Players, Set−Top Boxes, TVs, etc.)
Auxiliary Power Supplies (USB, Appliances, TVs, etc.)
PIN CONNECTIONS
DMG
FB
CS
GND
1
2
3
4
(Top View)
8
7
6
5
HV
NC
V
CC
Drv
ORDERING INFORMATION
Device
NCP1207DR2
NCP1207DR2G
NCP1207P
NCP1207PG
Package
SOIC−8
SOIC−8
(Pb−Free)
PDIP−8
PDIP−8
(Pb−Free)
Shipping
2500/Tape & Reel
2500/Tape & Reel
50 Units/Tube
50 Units/Tube
Typical Applications
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
©
Semiconductor Components Industries, LLC, 2004
1
October, 2004 − Rev. 8
Publication Order Number:
NCP1207/D

NCP1207DR2G Related Products

NCP1207DR2G NCP1207-D NCP1207P NCP1207DR2
Description 0.5 A SWITCHING CONTROLLER, PDSO8 0.5 A SWITCHING CONTROLLER, PDIP8 0.5 A SWITCHING CONTROLLER, PDIP8 0.5 A SWITCHING CONTROLLER, PDIP8
control mode CURRENT-MODE PEAK CURRENT CURRENT-MODE CURRENT-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Number of functions 1 1 1 1
Number of terminals 8 8 8 8
Maximum output current 0.5 A 0.5000 A 0.5 A 0.5 A
Switch configuration SINGLE SINGLE SINGLE SINGLE
Terminal form GULL WING THROUGH-HOLE THROUGH-HOLE GULL WING
Terminal location DUAL DUAL DUAL DUAL
Is it Rohs certified? conform to - incompatible incompatible
Parts packaging code SOIC - DIP SOIC
package instruction SOP, SOP8,.25 - DIP, DIP8,.3 SOP, SOP8,.25
Contacts 8 - 8 8
Reach Compliance Code unknow - _compli _compli
ECCN code EAR99 - EAR99 EAR99
Analog Integrated Circuits - Other Types SWITCHING CONTROLLER - SWITCHING CONTROLLER SWITCHING CONTROLLER
Nominal input voltage 11 V - 11 V 11 V
JESD-30 code R-PDSO-G8 - R-PDIP-T8 R-PDSO-G8
JESD-609 code e3 - e0 e0
length 4.9 mm - 9.78 mm 4.9 mm
Package body material PLASTIC/EPOXY - PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SOP - DIP SOP
Encapsulate equivalent code SOP8,.25 - DIP8,.3 SOP8,.25
Package shape RECTANGULAR - RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE - IN-LINE SMALL OUTLINE
Peak Reflow Temperature (Celsius) 260 - 240 240
Certification status Not Qualified - Not Qualified Not Qualified
Maximum seat height 1.75 mm - 4.45 mm 1.75 mm
surface mount YES - NO YES
Maximum switching frequency 150 kHz - 150 kHz 150 kHz
technology CMOS - CMOS CMOS
Terminal surface Tin (Sn) - Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal pitch 1.27 mm - 2.54 mm 1.27 mm
Maximum time at peak reflow temperature 40 - 30 30
width 3.9 mm - 7.62 mm 3.9 mm
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