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SDC603

SDC
Part Number SDC603
Manufacturer SDC
Description Current Mode PWM Controller
Published Mar 16, 2014
Detailed Description Current Mode PWM Controller Datasheet SDC603 General Description Features SDC603 is a high-performance current mode ...
Datasheet PDF File SDC603 PDF File

SDC603
SDC603


Overview
Current Mode PWM Controller Datasheet SDC603 General Description Features SDC603 is a high-performance current mode control IC Tdesigned for AC/DC convertor, which supplies about continuous 12W output power at the universal AC input CONFIDENTIAL DOCUMENrangefrom85Vto265V.
 Built-in high voltage power transistor of 700V  High voltage start-up  Very low start-up and operating current  Low standby power consumption  Protections: OVP, UVLO, SCP, OLP and OTP  Built-in high precise current limit with temperature compensation  12W and peak 15W output power at the universal AC input range  15W and peak 18W output power at AC input 220V  Very few external components  Package: DIP-8 Applications  Offline AC/DC flyback converter  Adaptor/Charger for cell and other Portable Apparatus  Open Frame (for example, DVD, DVB) SDC DIP-8 Figure 1.
Package Type December, 2013 Rev.
1.
2 ©2013 Shaoxing Devechip Microelectronics Co.
, Ltd.
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sdc-semi.
com Current Mode PWM Controller Datasheet SDC603 Pin Configuration DOCUMENTPin Number L1 IA2 3 T4 N5 6 CONFIDE7,8 OB 1 Package: DIP-8 8 OC VCC 2 7 OC GND 3 6 IS CT 4 5 FB Figure 2.
Pin Configuration Pin Name OB VCC GND CT FB IS OC Function Startup current input, connecting to startup resistor Supply voltage pin Ground Oscillate capacitor pin Feedback pin Cycle-by-cycle current limit, connecting a resistor to GND Output of HV transistor, connecting to primary wind of transformer Table 1.
Pin Description SDC December, 2013 Rev.
1.
2 ©2013 Shaoxing Devechip Microelectronics Co.
, Ltd.
2/11 www.
sdc-semi.
com Current Mode PWM Controller Datasheet SDC603 Functional Block Diagram NTVREF MEOLP CT VCC OB STC Dmax OSC CUFB IAL DOGND 1.
4V FB COMP PWM OVP 10V UVP 3.
7V DRVU OTP CS COMP 0.
625V CONFIDENTFigure 3.
Functional Block Diagram OC OC IS SDC December, 2013 Rev.
1.
2 ©2013 Shaoxing Devechip Microelectronics Co.
, Ltd.
3/11 www.
sdc-semi.
com Current Mode PWM Controller Datasheet SDC603 ...



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