AP3700 BCDSEMI | Alldatasheet

Document overview

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Technical content

Features

  • Current Mode Control with Skip Cycle Capability
  • Lower Operating Current: 0.45mA
  • Fixed Switching Frequency: 60 kHz
  • Frequency Dither for Low EMI: ±2.5kHz
  • Under-V oltage Lockout Protection
  • Over-Current Protection
  • Internal Short Circuit Protection
  • Higher Output Breakdown V oltage
  • Lower Total Cost Solution

Applications

  • Battery Chargers
  • Off-Line Power Supplies

Figure 1. Package Types of AP3700

Figure 2. Pin Configuration of AP3700 (Top View)

1 VCC The power supply of the IC, and is gene rally connected to opto-coupler's emitter

2 GND Supply ground

3 OUT The output pin, connected to the emitter of NPN transistor or the source of MOSFET

Figure 3. Functional Block Diagram of AP3700

LOW POWER PWM CONTROLLER FOR OFF-LINE BATTERY CHARGER AP3700 Data Sheet Jan. 2007 Rev. 1. 1 BCD Semiconductor Manufacturing Limited Parameter Value Unit Supply V oltage -0.3 to 6.0 V V oltage at OUT -0.3 to 40 V Output Current at OUT Internally limited A Power Dissipation N/A W Operating Junction Temperature 150 oC Storage Temperature -65 to 150 oC Lead Temperature (Soldering, 10s) 300 oC ESD (Machine Model) 200 V Note 1: Stresses greater than those li sted under "Absolute Maximum Ratings" may cause perm anent damage to the device. These are stress ratings only, and functi onal operation of the device at these or any other condi tions beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Abs olute Maximum Ratings" for extended periods may affect device reliability. Absolute Maximum Ratings (Note 1) Package Switching Frequency Temperature Range Part Number Marking ID Packing Type TO-92 60kHz -40 to 85oC AP3700Z-E1 3700Z-E1 Bulk AP3700ZTR-E1 3700Z-E1 Ammo BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Circuit Type Package Z: TO-92 E1: Lead Free AP3700 - TR: Blank: Bulk

Ordering Information

LOW POWER PWM CONTROLLER FOR OFF-LINE BATTERY CHARGER AP3700 Data Sheet Jan. 2007 Rev. 1. 1 BCD Semiconductor Manufacturing Limited Parameter Symbol Conditions Min Typ Max Unit UVLO SECTION Start-up V oltage VTH (ST) 5.00 5.25 5.50 V Minimal Operating V oltage V OPR(Min) 3.4 3.65 3.9 V STANDBY CURRENT SECTION Start-up Current I ST VCC=4V 0.22 0.4 mA Operating Current I CC(OPR) 0.45 0.7 VCC Zener V oltage V Z ICC=10mA 6 6.3 V Dynamic Impedance R VCC VCC=3.8 to 4.8V 18 k Ω INTERNAL OSCILLATOR Switching Frequency F SW 50 60 75 kHz Frequency Dither ±2 ±2.5 ±3 kHz Temperature Stability 5 8 % DRIVE OUTPUT SECTION OUT Start-up V oltage V ST 8.5 11 V Short Circuit Threashold Vo l t a g e VSC 6V Rise Time T R CL=1nF, 15Ω pull-up 60 ns Fall Time T F CL=1nF, 15Ω pull-up 30 Maximum Duty Cycle D MAX VOPR(Min) + 0.2V 67 75 84 % Minimum Duty Cycle V CC=VTH (ST)-0.2V 3 Driver OUT On-Resistance R OUT IOUT=0.06A 3 Ω Switch Off Current (OUT) Driver off, V OUT=10V 20 40 µA Effective Current Limit I LIM VCC = VOPR+0.1V 420 mA OUT Current Coefficient G A -0.3 A/V (VCC=4V , TJ=25oC, unless otherwise specified.)

Electrical Characteristics

Figure 10. 5V/1A Output for Battery Charger of Mobile Phone

LOW POWER PWM CONTROLLER FOR OFF-LINE BATTERY CHARGER AP3700 Data Sheet Jan. 2007 Rev. 1. 1 BCD Semiconductor Manufacturing Limited Mechanical Dimensions Unit: mm(inch)TO-92 2.440(0.096) 2.640(0.104) 0.380(0.015) 0.550(0.022) Φ1.600(0.063) MAX 14.100(0.555) 14.500(0.571) 1.270(0.050) TYP 3.300(0.130) 3.700(0.146) 4.300(0.169) 4.700(0.185) 1.100(0.043) 1.400(0.055) 4.400(0.173) 4.700(0.185) 3.430(0.135) MIN 0.360(0.014) 0.510(0.020) 0.000(0.000) 0.380(0.015)

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