AP3201A BCDSEMI | Alldatasheet

Document overview

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Technical content

Features

  • Input V oltage Range: 4.75V to 18V
  • Fixed 380kHz Frequency
  • High Efficiency: up to 93%
  • Output Current: 2A
  • Current Mode Control
  • Built-in Over Current Protection
  • Built-in Thermal Shutdown Function
  • Built-in UVLO Function
  • Built-in Over V oltage Protection
  • Programmable Soft-start

Applications

  • LCD TV
  • Set Top Box
  • Portable DVD
  • Digital Photo Frame

Figure 1. Package Type of AP3201A

Figure 2. Pin Configuration of AP3201A (Top View)

6 GND Ground pin

8 COMP

P r e l i m i n a r y D a t a s h e e t 380kHz, 2A Asynchronous DC-DC Buck Converter AP3201A Mar. 2011 Rev. 1. 0 BCD Semiconductor Manufacturing Limited TR: Tape & Reel Functional Block Diagram Figure 3. Functional Block Diagram of AP3201A

Ordering Information

M H : H M S O P - 1 0 Package Temperature Range Part Number Marking ID Packing Type HMSOP-10 -40 to 85ºC AP3201AMH TR-G1 3201AMH-G1 Tape & Reel BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS compliant and green. G1: Green

P r e l i m i n a r y D a t a s h e e t 380kHz, 2A Asynchronous DC-DC Buck Converter AP3201A Mar. 2011 Rev. 1. 0 BCD Semiconductor Manufacturing Limited Absolute Maximum Ratings (Note 1) Parameter Symbol Value Unit IN Pin Voltage V IN -0.3 to 20 V EN Pin Voltage V EN -0.3 to V IN V SW Pin Voltage V SW 20 V BS Pin Voltage V BS -0.3 to V SW+6 V FB Pin Voltage V FB -0.3 to 6 V COMP Pin Voltage V COMP -0.3 to 6 V SS Pin Voltage V SS -0.3 to 6 V Thermal Resistance θJA 60 ºC/W Operating Junction Temperature T J 150 ºC Storage Temperature T STG -65 to 150 ºC Lead Temperature (Soldering, 10sec) T LEAD 260 ºC ESD (Machine Model) 200 V ESD (Human Body Model) 2000 V Note 1: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Co nditions” is not implied. Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability. Recommended Operating Conditions Parameter Symbol Min Max Unit Input V oltage V IN 4.75 18 V Maximum Output Current I OUT (Max) 2 A Operating Ambient Temperature T A -40 85 ºC

P r e l i m i n a r y D a t a s h e e t 380kHz, 2A Asynchronous DC-DC Buck Converter AP3201A Mar. 2011 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

Electrical Characteristics

VIN=VEN=12V, VOUT=3.3V, unless otherwise specified. Specification with standard typeface are for T A=25 ºC, and those in boldface type apply over the full operating temperature range (TA=-40 ºC to 85 ºC) Parameter Symbol Conditions Min Typ Max Unit Input V oltage V IN 4.75 18 V Quiescent Current I Q V FB=1.0V , VEN=2V 1.0 1.5 mA Shutdown Supply Current I SHDN V EN=0V 1 10 µA Feedback V oltage V FB 0.902 0.920 0.938 V Feedback Over V oltage Threshold VFBOV 1.1 V Feedback SCP V oltage Threshold V FBSCP 0.6 V Feedback Bias Current I FB V FB=1V -0.1 0.1 µA High-side Switch On-resistance (Note 2) R DSONH I SW=0.5A 0.22 Ω Low-side Switch On-resistance (Note 2) R DSONL I SW=0.05A 10 Ω High-side Switch Leakage Current I LEAKH VIN=18V , VEN=0V VSW=0V 0.1 10 µA High-side Switch Current Limit I LIMH 2.8 3.8 A Low-side Switch Current Limit I LIML From drain to source 0.15 A VENH 1.5 EN Pin Threshold VENL 0.5 V EN Pull-up Current I EN-PH V EN=0V 1.0 µA Input UVLO Threshold V UVLO V IN Rising 3.5 3.9 4.4 V Input UVLO Hysteresis V HYS 0.3 V Oscillator Frequency F OSC1 380 kHz Short Circuit Oscillator Frequency FOSC2 90 kHz Maximum Duty Cycle D MAX V FB=0.8V 90 % Minimum Duty Cycle D MIN V FB=1.0V 0 % Error Amplifier V oltage Gain (Note 3) A EA 400 V/V Error Amplifier Transconductance G EA 700 µA/V COMP to Current Sense Transconductance GCS 2.4 A/V Thermal Shutdown (Note 3) T OTSD 160 ºC Thermal Shutdown Hysteresis (Note 3) T HYS 30 ºC Soft-start Time (Note 3) t SS IOUT=500mA CSS=0.1µF 10 ms Soft-start Current I SS 6 µA

P r e l i m i n a r y D a t a s h e e t 380kHz, 2A Asynchronous DC-DC Buck Converter AP3201A Mar. 2011 Rev. 1. 0 BCD Semiconductor Manufacturing Limited Typical Performance Characteristics (Continued) TA=25 ºC, VIN=12V, VOUT=3.3V, unless otherwise noted. F i g u r e 1 2 . S h o r t C i r c u i t P r o t e c t i o n F i g u r e 1 3 . S h o r t C i r c u i t R e c o v e r y ( I OUT= 2 A ) ( I OUT=2A) VSW 5V/div IL 1A/div VOUT 2V/div Time (100 µs/div) VSW 5V/div IL 1A/div VOUT 2V/div Time (100 µs/div)

Figure 14. Typical Application of AP3201A

P r e l i m i n a r y D a t a s h e e t 380kHz, 2A Asynchronous DC-DC Buck Converter AP3201A Mar. 2011 Rev. 1. 0 BCD Semiconductor Manufacturing Limited Mechanical Dimensions HMSOP-10 Unit: mm(inch) 3.100(0.122) 2.900(0.114) 3.100(0.122) 2.900(0.114) 5.100(0.201) 4.700(0.185) 0.270(0.011) BSC MAX. 0.000(0.000) 0.400(0.016) 0.950(0.037) REF 0.270(0.011) 0.170(0.007) 0.170(0.007) 0.230(0.009) 0.130(0.005) 0.200(0.008) 0.080(0.003) 0.180(0.007) 0.800(0.031) Note: 1. Eject hole, oriented hole and mold mark is optional. 2. The figure of exposed pad is not restrained as regular rectangle. 2.500(0.100) 0.750(0.030) PLATING BASE METAL 2.500(0.100) 0.750(0.030)

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 Unit A Room 1203, Skyworth Bldg., Gaoxin Ave.1.S., Nanshan District, Shenzhen, 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