AP3902 BCDSEMI | Alldatasheet

Document overview

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Technical content

Features

  • Built-in NPN Transistor with 700VCBO
  • Current Mode Control with Skip Cycle Capability
  • Low Operating Current: 0.45mA
  • Fixed Switching Frequency: 60kHz
  • Frequency Dithering for Low EMI
  • Short Circuit Protection
  • Open and Short Circuit Protection for Opto- Coupler
  • Maximal Input Power less than 0.2W under no Load
  • Output Power Range: 5W to 10W for Adapter with Outer Enclosure 5W to 13W for Open Frame Application

Applications

  • Induction Cooker
  • Set-Top Boxes/DVB
  • Adapters
  • Auxiliary Power Supplies
  • DVD

Figure 1. Package Type of AP3902

Figure 2. Pin Configuration of AP3902 (Top View)

3 VCC The power supply of the IC and it is also used for the feedback control

4 B It is internally connected with the base terminal of internal NPN transistor

7 NC No connection to IC

8 GND Supply ground

Figure 3. Functional Block Diagram of AP3902

LOW POWER PWM SWITCH FOR OFF-LINE SMPS AP3902 Data Sheet BCD Semiconductor Manufacturing LimitedSep. 2008 Rev. 1.0 Parameter Symbol Value Unit Collector Pin V oltage V CES 700 V V oltage at the Emitter of Internal NPN Transistor V E -0.3 to 40 V Supply V oltage V CC -0.3 to 6.3 V Analog Input at VS V S -0.3 to 6.3 V VA P i n Vo l t a g e V A -0.3 to 40 V Continuous Collector Current 1 A Power Dissipation 1.3 W Operating Junction Temperature 150 oC Storage Temperature -65 to 150 oC Lead Temperature (Soldering, 10s) 300 oC ESD (Human Body Model) 3000 V Note 1: Stresses greater than those li sted under "Absolute Maximum Ratings" may cause permanent dama ge to the device. These are stress ratings only, and functional operation of the de vice at these or any other conditions beyond t hose indicated under "Recommended Operating Conditions" is not implied. Exposure to "A bsolute Maximum Ratings" for extended periods may affect device reliability. Absolute Maximum Ratings (Note 1) Package Temperature Range Part Number Marking ID Packing Type Lead Free Green Lead Free Green DIP-8 -40 to 85oC AP3902P-E1 AP3902P-G1 AP3902P-E1 AP3902P-G1 Tube BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with "G1" suffix are available in green packages.

Ordering Information

Circuit Type E1: Lead Free AP3902 - Blank: TubePackage P: DIP-8 G1: Green

LOW POWER PWM SWITCH FOR OFF-LINE SMPS AP3902 Data Sheet BCD Semiconductor Manufacturing LimitedSep. 2008 Rev. 1.0 Parameter Symbol Conditions Min Typ Max Unit Power Transistor Section Collector-Emitter Breakdown Vo l t a g e VCES VBE=0, ICE=100μA 700 V Collector-Emitter Saturation Vo l t a g e V CE, SAT IC=0.5A, IB=0.1A 0.3 V DC Current Gain h FE IC=0.5A, VCE=2V 13 18 30 UVLO Section Turn on Threshold V oltage VCC(on) 5.00 5.25 5.50 V Turn off Threshold V oltage VCC(off) 3.37 3.55 3.73 V Discharge V oltage V DIS 2.7 2.9 3.1 V Standby Current Section Start-up Current IST VCC = 4V 0.22 0.4 mA Operating Current I CC(op) 0.45 0.7 VCC Zener V oltage V Z ICC=5mA 6.5 V Dynamic Impedance R VCC VCC = 3.8Vto 4.8V 18 26 k Ω Internal Oscillator Section Switching Frequency fSW 55 60 70 kHz Frequency Dithering ±2 ±3.5 ±5 Temperature Stability -40 to 85oC 51 0 % Driver and Output Section OUT Turn on V oltage VOUT(on) 8.5 11 V OUT Turn off V oltage VOUT(off) 4.8 6 7.2 V Rise Time tR CL=1nF, 15Ω pull-up 60 ns Fall Time tF CL=1nF, 15Ω pull-up 30 Maximum Duty Cycle DMAX VCC(off) + 0.2V 68 75 82 Minimum Duty Cycle VCC=VCC(on) - 0.2V 3 Driver OUT On-Resistance ROUT IOUT=0.7A 2.5 4 Ω Switch Off Current Driver off, VOUT=10V 20 40 μA Effective Current Limit ILIM VCC=VCC(off) + 0.5V 680 800 920 mA (VCC=4V , TJ=25oC, unless otherwise specified.)

Electrical Characteristics

Figure 7. 12V/0.85A Off-Line Adapter Application Circuit

LOW POWER PWM SWITCH FOR OFF-LINE SMPS AP3902 Data Sheet BCD Semiconductor Manufacturing LimitedSep. 2008 Rev. 1.0 Mechanical DimensionsMechanical Dimensions DIP-8 Unit: mm(inch) R0.750(0.030) 0.254(0.010)TYP 0.130(0.005)MIN 8.200(0.323) 9.400(0.370) 0.204(0.008) 0.360(0.014) 7.620(0.300)TYP 0.700(0.028) 9.000(0.354) 9.400(0.370) 3.710(0.146) 4.310(0.170) 3.000(0.118) 3.600(0.142) 0.360(0.014) 0.560(0.022) 6.600(0.260) 3.200(0.126) 3.600(0.142) 0.510(0.020)MIN Φ3.000(0.118) Depth 0.100(0.004) 0.200(0.008) 1.524(0.060) TYP

BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi- cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or other rights nor the rights of others. - Wafer Fab Shanghai SIM-BCD Semiconductor Manufacturing Limited 800, Yi Shan Road, Shanghai 200233, China Tel: +86-21-6485 1491, Fax: +86-21-5450 0008 BCD Semiconductor Manufacturing Limited MAIN SITE REGIONAL SALES OFFICE Shenzhen Office Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. Shenzhen Office Advanced Analog Circuits (Shanghai) Corporation Shenzhen Office Room E, 5F, Noble Center, No.1006, 3rd Fuzhong Road, Futian District, Shenzhen 518026, China Tel: +86-755-8826 7951 Fax: +86-755-8826 7865 Taiwan Office BCD Semiconductor (Taiwan) Company Limited 4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei, Taiwan Tel: +886-2-2656 2808 Fax: +886-2-2656 2806 USA Office BCD Semiconductor Corporation 30920 Huntwood Ave. Hayward, CA 94544, U.S.A Tel : +1-510-324-2988 Fax: +1-510-324-2788 - IC Design Group Advanced Analog Circuits (Shanghai) Corporation 8F, Zone B, 900, Yi Shan Road, Shanghai 200233, China Tel: +86-21-6495 9539, Fax: +86-21-6485 9673 BCD Semiconductor Manufacturing Limited http://www.bcdsemi.com BCD Semiconductor Manufacturing Limited IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi- cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or other rights nor the rights of others. - Wafer Fab Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd.

800 Yi Shan Road, Shanghai 200233, China

Tel: +86-21-6485 1491, Fax: +86-21-5450 0008 MAIN SITE REGIONAL SALES OFFICE Shenzhen Office Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd., Shenzhen Office Room E, 5F, Noble Center, No.1006, 3rd Fuzhong Road, Futian District, Shenzhen, 518026, China Tel: +86-755-8826 7951 Fax: +86-755-8826 7865 Taiwan Office BCD Semiconductor (Taiwan) Company Limited 4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei, Taiwan Tel: +886-2-2656 2808 Fax: +886-2-2656 2806 USA Office BCD Semiconductor Corp. 30920 Huntwood Ave. Hayward, CA 94544, USA Tel : +1-510-324-2988 Fax: +1-510-324-2788 - Headquarters BCD Semiconductor Manufacturing Limited No. 1600, Zi Xing Road, Shanghai ZiZhu Science-based Industrial Park, 200241, China Tel: +86-21-24162266, Fax: +86-21-24162277