PI3525-00-EVAL1 Vicor

USER GUIDE UG:307 PI352x-0x-EVAL1 ZVS Regulators 60V Buck Evaluation Board User Guide IN Contents Page Introduction 1 Box Contents 3 Recommended Test Equipment 3 Features 3 Board Operation Modes 4 Thermal Consideration 4 Power Up Procedure 4 Board Description 5 General Components 6 Test Points Description 8 Sockets Description 9 Schematic 10 Bill of Materials 14 Note: Acutal evaluation board appearance may vary slightly depending on product ordered Introduction This evaluation board is designed for the PI352x family of 10 x 14 ZVS Bucks. It can be configured to demonstrate a single product in a stand-alone local sense or a remote sense configuration. The PI352x family of wide input range DC-DC ZVS-Buck regulators feature high efficiency with integrated controller, power switches, and support components all within a high density 0.4 x 0.55 System-in-Package (SiP). Required components are placed inside a demarcation featuring a solution size of 7.3 x 1.35. The demarcation includes an external inductor, compensation capacitor, voltage selection resistors, soft-start capacitor, and input-output capacitors to form a complete DC-DC regulator. UG:307 Page 1 IMPORTANT NOTICE: Be sure to read the precautions below entirely BEFORE using the Evaluation Board. Do not operate the evaluation board unless you have the appropriate safety precautions in place on your bench to ensure a successful experience. The list below is not comprehensive and is not a substitute for common sense and good practice. n Refer to the specific regulator module data sheet for electrical rating of the device, thermal and mechanical product details. It is important to remain within the device rated range when testing. n When testing electronic products always use approved safety glasses. Follow good laboratory practice and procedures. n During operation insure the power devices and surrounding structures can be operated safely. n Care should be taken to protect the user from accidental contact when under power. n Provide a strain relief for wires and place the system on the bench in such a way as to prevent accidental displacement from bench top. n Review thermal consideration and guideline associated with operating the evaluation board. Most notably use a bench top fan and use rubber feet to elevate the PCB as they allow air flow to the bottom. n Remove power and use caution when connecting and disconnecting test probes and interface lines to avoid inadvertent short circuits and contact with hot surfaces. n Verify power connections to avoid reversing applied voltage polarities. n Avoid creating ground loops between the SGND and PGND pins when making measurements. n The product evaluation board is designed for general laboratory evaluation. It is not recommended for installation in end user equipment. UG:307 Page 2