ADP1071-2EBZ12.1V Analog Devices

ADP1071-2EBZ12.1V User Guide UG-1129 One Technology Way P.O. Box 9106 Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 www.analog.com Evaluating the ADP1071-2 Isolated Synchronous Flyback Controller with Integrated iCoupler FEATURES ADDITIONAL EQUIPMENT NEEDED Full support evaluation kit for the ADP1071-2 DC power supply capable of 36 Vdc to 60 Vdc, 3 A 36 W flyback topology Electronic load capable of 150 W, 0 V to 60 V 12.1 V output voltage (Vdc) Oscilloscope capable of 500 MHz bandwidth, 2 channels to 3 A steady state, 5 A peak 4 channels Forced CCM operation Precision digital multimeter (HP34401 or equivalent) Dedicated internal primary and secondary side MOSFET GENERAL DESCRIPTION drivers The ADP1071-2EBZ12.1V evaluation board allows users to External reference signal tracking evaluate the ADP1071-2 in a power supply application. Precision enabled undervoltage lockout with hysteresis Short-circuit, output overvoltage, cycle by cycle input The evaluation board is set up to act as an isolated power supply overcurrent, and over temperature protection unit (PSU), with a rated load of 12.1 Vdc, 3 A in steady state (5 A Frequency synchronization peak) from a 36 Vdc to 60 Vdc source. Soft start and soft stop functionality Connectors on the ADP1071-2EBZ12.1V provide EVALUATION KIT CONTENTS synchronization, allowing direct paralleling evaluation when multiple ADP1071-2EBZ12.1V evaluation boards are connected ADP1071-2EBZ12.1V in parallel to a common bus. Multiple test points allow easy access to all critical nodes and pins. Complete information about the ADP1071-2 is available in the ADP1071-1/ADP1071-2 data sheet, which should be consulted in conjunction with this user guide when using the evaluation board. ADP1071-2EBZ12.1V EVALUATION BOARD SETUP Figure 1. PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. A Page 1 of 15 15757-001UG-1129 ADP1071-2EBZ12.1V User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Evaluating the ADP1071-2 ...............................................................5 Evaluation Kit Contents ................................................................... 1 Gate and SR Pins and Functionality ...........................................5 Additional Equipment Needed ....................................................... 1 Soft Start .........................................................................................6 General Description ......................................................................... 1 Soft Stop ..........................................................................................6 ADP1071-2EBZ12.1V Evaluation Board Setup ........................... 1 Output Ripple ................................................................................6 Revision History ............................................................................... 2 Control Loop ..................................................................................7 Evaluation Board Overview ............................................................ 3 External Signal Tracking ..............................................................7 Power Train Overview ................................................................. 3 Over Current Protection (OCP) .................................................8 Applications ................................................................................... 3 Voltage and Current Stress ...........................................................8 Connectors .................................................................................... 3 Efficiency Curves ..........................................................................9 Caution .......................................................................................... 3 Thermal Performance ...................................................................9 Evaluation Board Hardware ............................................................ 4 Evaluation Board Schematic and Artwork .................................. 10 Evaluation Board Configurations .............................................. 4 Ordering Information .................................................................... 14 Powering Up .................................................................................. 4 Bill of Materials ........................................................................... 14 ADP1071-2EBZ12.1V Dimensions............................................ 4 REVISION HISTORY 12/2018Rev. 0 to Rev A. Change to Figure 21 ....................................................................... 10 10/2018Revision 0: Initial Version Rev. A Page 2 of 15