AP1681 BCDSEMI | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 13

Technical content

Features

  • Primary Side Control for Output Current Regulation Without Opto-coupler and Secondary CV/CC Control Circuitry
  • Adjustable Full Brightness and Full Dimming Setting
  • Wide Dimming Range From 100% to 1%, Down to Full Darkness
  • Adjustable Dimming Curve for Human Eye Sensitivity
  • No Visible Flicker
  • Connectivity with Analog / Digital / Hybrid Dimming Mode
  • Built-in Accel eration Start
  • Adjustable Soft-start Timing
  • CV Open-load Regulation and Reload Detection
  • Over V oltage and Short Circuit Protection
  • Over Temperature Protection
  • Over Current Protection
  • Maximum Switch On-time Protection

Applications

  • Dimmable LED Driver Suit for Leading-edge Dimmer, Trailing-edge Dimmer, R Type, R-C Type or R-L Type Dimmer

Figure 1. Package Type of AP1681

Figure 2. Pin Configuration of AP1681 (Top View)

1 DIM Dimming control signal input

2 RD Full brightness level setting

3 RI Full dimming level setting

4 FB The feedback voltage sensing from the auxiliary winding

5 CS Primary current sensing

7 OUT Gate driver output

8 VCC Supply voltage of gate driver and control circuits of the IC

Figure 3. Functional Block Diagram of AP1681

P r e l i m i n a r y D a t a s h e e t Off-line Primary Side Regulation Controller for Dimmable LED Driver AP1681 Jul. 2011 Rev. 1. 2 BCD Semiconductor Manufacturing Limited

Ordering Information

M: SOIC-8 Package Temperature Range Part Number Marking ID Packing Type AP1681M-G1 1681M-G1 Tube SOIC-8 -40 to 105°C AP1681MTR-G1 1681M-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 TR: Tape & Reel Blank: Tube

P r e l i m i n a r y D a t a s h e e t Off-line Primary Side Regulation Controller for Dimmable LED Driver AP1681 Jul. 2011 Rev. 1. 2 BCD Semiconductor Manufacturing Limited Absolute Maximum Ratings (Note 1) Parameter Symbol Value Unit Power Supply Voltage VCC -0.3 to 30 V Driver Output Current I OUT ±300 mA Voltage at RD, RI, DIM, CS VRD, VRI, VDIM, VCS -0.3 to 7 V FB Input Voltage VFB -40 to 10 V Operating Junction Temperature T J 150 ºC Storage Temperature T STG -65 to 150 ºC Lead Temperature (Soldering, 10 sec) T LEAD 300 ºC Power Dissipation at TA=50°C PD 0.65 W Thermal Resistance (Junction-to-Ambient) θJA 150 °C/W ESD (Machine Model) 200 V ESD (Human Body Model) 4000 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 Power Supply Voltage VCC 10.8 21.5 V Ambient Temperature T A -40 105 ºC

P r e l i m i n a r y D a t a s h e e t Off-line Primary Side Regulation Controller for Dimmable LED Driver AP1681 Jul. 2011 Rev. 1. 2 BCD Semiconductor Manufacturing Limited

Electrical Characteristics

VCC =15V , TA=25°C, unless otherwise specified. Parameter Symbol Conditions Min Typ Max Unit UVLO Section Start-up Threshold V TH (ST) 16.5 19 21.5 Minimal Operating V oltage V OPR (Min) After turn on 7.2 9 10.8 V Standby Current Section Start-up Current I ST VCC=VTH (ST)-0.5V , Before start up 1.7 10 Operating Current I CC Static 700 900 1100 µA Drive Output Section Output High Level V oltage V OH IGD-SOURCE=20mA VCC=12V 8 V Output Low Level V oltage V OL IGD-SINK=20mA VCC=12V 1 V Output V oltage Rise Time t R C L=1nF 120 220 320 ns Output V oltage Fall Time t F C L=1nF 30 50 90 ns Output Clamp V oltage V O-CLAMP IGD-SOURCE=5mA VCC=20V 11 13 15 V UVLO Saturation V oltage V UVLO VCC=0 to VCC–ON ISINK=10mA 1 V Maximum Switch On-time t ONP_MAX 16.5 µs DIM Input Section V oltage Gain to RI ∆VRI/∆VDIM -1.2 -1.1 -1.0 Internal Source Current 11 20 35 µA Reload Threshold 0.8 1 1.25 V RD and RI Section RD Pin V oltage V RD 1.3 1.5 1.75 V Maximum RD Current 150 µA Maximum RI Current 250 µA Current Sense Section Current Sense V oltage V CS 450 500 560 mV Maximum CS Current V DIM=0 120 µA Leading Edge Blanking 600 ns

VCC =15V , TA=25°C, unless otherwise specified. Figure 4. Start-up Voltage vs. Ambient Temperature Figure 5. Minimal Operating Voltage vs.

32 VOPEN

Figure 17. Typical Application of AP1681

P r e l i m i n a r y D a t a s h e e t Off-line Primary Side Regulation Controller for Dimmable LED Driver AP1681 Jul. 2011 Rev. 1. 2 BCD Semiconductor Manufacturing Limited Mechanical Dimensions S O I C - 8 U n i t : m m ( i n c h ) R0.150(0.006)

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