5V/9V/12V Output USB Auto Detect+USB-PD Type-C Application Report ACT4527 FEATURES Wide input voltage range from 6V to 32V Transparent input voltage surge up to 40V USB auto detect, support Apple, Samsung and BC 1.2 Interface for USB-PD Type-C output voltage control 5V/9V/12V 2.4A output with Constant current regulation 125kHz switching frequency Standby input current <1mA Good EMC performance Under voltage protection at output short <6mA average output current at output short Output over voltage protection Output cord compensation Thermal shutdown protection SPECIFICATION DESCRIPTION CONDITION MIN TYP MAX UNITS Output current limit range 2400 2650 2900 mA Vin=12V,ouput 5V/2.4A 46 Vin=12V,ouput 9V/2.4A 27 Vin=12V,ouput 11.6V/2.4A 19 Ripple Voltage mVpp Vin=24V,ouput 5V/2.4A 59 Vin=24V,ouput 9V/2.4A 72 Vin=24V,ouput 12V/2.4A 80 Vin=12V,ouput 5V/2.4A 89.6 Vin=12V,ouput 9V/2.4A 94.9 Vin=12V,ouput 12V/2.4A 96.7 Efficiency at full load % Vin=24V,ouput 5V/2.4A 87.7 Vin=24V,ouput 9V/2.4A 92.4 Vin=24V,ouput 12V/2.4A 93.9 ENVIRONMENTAL 8 kV Contact ESD 15 kV Through air TABLE OF CONTENTS Active-Semi, Inc. - 1 - www.active-semi.com ACT4527 USB Auto Detect+USB-PD Type-C 1. Demo Board Photo ................................................................................................................................. 3 2. PCB Layout ............................................................................................................................................ 3 3. Schematic ................................................................................................................................................ 3 4. Bill of Materials ...................................................................................................................................... 4 5. Functional Test ........................................................................................................................................ 5 5.1. Output Regulation (on PCB board) ........................................................................................................... 5 5.2. Efficiency (Ta=25) ................................................................................................................................. 6 5.3. Power Loss ................................................................................................................................................ 7 5.4. Constant Current and Constant Voltage (Ta=25) ................................................................................... 9 5.5. Standby Input Current ............................................................................................................................. 12 5.6. Ripple and Noise ..................................................................................................................................... 13 5.7. Load Dynamic Response ......................................................................................................................... 15 5.8. Output Voltage Transient ......................................................................................................................... 16 5.9. Line Dynamic Response(Vin change from 12V to 40V, 0.1V/us) ........................................................... 17 5.10. Key Components Temperature Test ( burning for 2 hours) ................................................................. 18 6. EMI TEST............................................................................................................................................. 19 6.1. Output 5V ................................................................................................................................................ 19 6.2. Output=9V ............................................................................................................................................... 20 Active-Semi, Inc. - 2 - www.active-semi.com