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SDC603 Dataheets PDF



Part Number SDC603
Manufacturers SDC
Logo SDC
Description Current Mode PWM Controller
Datasheet SDC603 DatasheetSDC603 Datasheet (PDF)

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 .

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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. 1/11 www.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 Ordering Information Package DIP-8 TSDC603 X X - X ENCircuit Type Package MDIP-8: Z E1: Pb-free G1: Halogen-free Blank: Tube OCUTemperature CONFIDENTIAL D-40℃~85℃ Part Number Pb-free Halogen-free SDC603Z -E1 SDC603Z -G1 Marking ID Pb-free Halogen-free SDC603 SDC603G Packing Type Tube SDC December, 2013 Rev. 1.2 ©2013 Shaoxing Devechip Microelectronics Co., Ltd. 4/11 www.sdc-semi.com Current Mode PWM Controller Datasheet SDC603 Absolute Maximum Ratings (NOTE: Stresses greater than those listed under Absolute Maximum Ratings may cause permanent damage to the device.) Parameter TPower supply voltage VCC NEndurance voltage of OC collector EPeak value of switching current Total dissipation power MCollector current UOperating temperature Storage temperature range CLead temperature (soldering, 10sec) OLatch-up test per JEDEC 78 ESD, HBM model per Mil-Std-883, Method 3015 DESD,MM model per JEDEC EIA/JESD22-A115 Symbol V CC V CB Ip PD IC TJ T STG T LEAD HBM MM Value 18 -0.3~700 1000 1000 1.8 -40~150 -55~150 260 200 2000 200 IALTable 2. Absolute Maximum Ratings TRecommended Operating Conditions Parameter NPower supply voltage, VCC EOscillating frequency IDOperating temperature Symbol V CC f OSC Ta Min 4.8 55 -40 Max 9.0 68 85 CONFTable 3. Recommended Operating Conditions Unit V V mA mW A °C °C °C mA V V Unit V kHz °C SDC December, 2013 Rev. 1.2 ©2013 Shaoxing Devechip Microelectronics Co., Ltd. 5/11 www.sdc-semi.com Current Mode PWM Controller Datasheet SDC603 Electrical Characteristics(Ta=25°C, VCC =7.0V, CT=680pF, RIS=1Ω, unless otherwise specified) Parameter TOn-state saturation voltage drop NOutput rise time EOutput fall time MHV start-up current CUOscillating frequency OTemperature Stability DTemperature Stability Peak to peak value of oscillator IALFall time of oscillator Symbol Conditions Output Section VSAT IOC=600mA Tr CL=1nF Tf CL=1nF ISTC Oscillator Section f OSC △F V △F T CT=680pF VCC =4.8V~9V Ta=0°C~85°C VP-P - Tf CT=680pF Feedback Section TInput impedance IDENPSRR Pull-up current IFB VFB=2.5V Pull-down resistance R FB - - VCC =4.8V~9V Current Sampling Section Over current threshold voltage FIS-GND resistance NPSRR OOver current detection and control delay CMaximum duty cycle SDCMinimum duty cycle V TH_OC I TH_OC TD PWM Section - DMAX VFB=4.0V DMIN Power Current Section Min Typ Max Unit - - 1V - - 75 ns - - 75 ns 1 - 2.6 mA 55 61 68 kHz - - 1% - - 1% - 2.5 - V - 800 - ns 0.35 0.45 0.70 mA 10 15 20 kΩ - 60 70 dB 0.60 0.625 0.65 15 20 25 - 60 70 - 150 250 V Ω dB ns 52 57 62 - 1.5 - % % Startup leakage current IST - - 15 50 uA Static operation current IOP VFB=0V,VCC=8V 2.0 2.8 4.0 mA Startup threshold voltage V ST - 8.6 9.0 9.4 V Minimal operating voltage V UV - 3.3 3.7 4.0 V December, 2013 Rev. 1.2 ©2013 Shaoxing Devechip Microelectronics Co., Ltd. 6/11 www.sdc-semi.com Current Mode PWM Controller Datasheet SD.


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