ADP1071-1EVALZ User Guide UG-1384 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 ADP1071-1 Isolated Synchronous Flyback Controller with Integrated iCoupler FEATURES DIGITAL PICTURES OF THE EVALUATION BOARD Full support evaluation kit for the ADP1071-1 15 W multioutput flyback topology +24 V, +5.5 V, and 15 V output voltage (VDC) Light load mode (LLM) operation Dedicated internal primary and secondary side MOSFET drivers External reference signal tracking Precision enabled undervoltage lockout with hysteresis Short-circuit, output overvoltage, cycle by cycle input overcurrent, and overtemperature protection Frequency synchronization Soft start and soft stop functionality EVALUATION KIT CONTENTS Figure 1. ADP1071-1EVALZ Top ADP1071-1EVALZ EQUIPMENT NEEDED DC power supply capable of 18 VDC to 32 VDC, 1 A output current capability of the supply Electronic load capable of 15 W, 0 V to 30 V rating capability of the load Oscilloscope capable of 500 MHz bandwidth, 2 channels to 4 channels Precision digital multimeter (HP 34401 or equivalent) GENERAL DESCRIPTION The ADP1071-1EVALZ allows users to evaluate the ADP1071-1 in flyback topology. The evaluation board is set up to act as an isolated power supply Figure 2. ADP1071-1EVALZ Bottom solution that incorporates three output voltages (+5.5 V, +24 V, and 15 V) at a total rated power of 15 W. The evaluation board also provides 5 kV isolation in compact form factor, making it suitable for industrial applications, which usually have a variety of voltage rails. Complete information about the ADP1071-1 is available in the ADP1071-1/ADP1071-2 data sheet. Consult the ADP1071-1/ ADP1071-2 data sheet in conjunction with this user guide when using the evaluation board. PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 Page 1 of 13 17050-001 17050-002UG-1384 ADP1071-1EVALZ User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Powering Up...................................................................................4 Evaluation Kit Contents ................................................................... 1 ADP1071-1EVALZ Dimensions .................................................4 Equipment Needed ........................................................................... 1 Evaluating the ADP1071-1EVALZ Board ......................................5 General Description ......................................................................... 1 Startup .............................................................................................5 Digital Pictures of the Evaluation Board ....................................... 1 Cross Regulation ...........................................................................5 Revision History ............................................................................... 2 Control Loop Gain ........................................................................6 Evaluation Board Overview ............................................................ 3 Voltage and Current Stress ...........................................................6 Power Train Overview ................................................................. 3 Efficiency ........................................................................................7 Transformer ................................................................................... 3 Thermal Performance ...................................................................7 Connectors .................................................................................... 3 Evaluation Board Schematic and Artwork .....................................8 Caution .......................................................................................... 3 Ordering Information .................................................................... 11 Evaluation Board Hardware ............................................................ 4 Bill of Materials ........................................................................... 11 Evaluation Board Configurations .............................................. 4 REVISION HISTORY 8/2018Revision 0: Initial Version Rev. 0 Page 2 of 13