User guide

Picor Corporation • www.picorpower.com PI2121-EVAL1 User Guide Rev 1.1 Page 1 of 12
Introduction
The PI2121-EVAL1 allows the user to test the basic principle
and operational characteristics of an Active ORing function in
a redundant power architecture, while also experiencing the
benefits and value of the PI2121 solution versus conventional
Active ORing solutions. The PI2121-EVAL1 evaluation board is
configured to receive two independent power source inputs,
per a typical redundant power architecture, through two
Active ORing channels that are combined to form a
redundant power output. Each channel is capable of up to 24
A, and is suitable for redundant bus voltages up to 5 V. For
high current Active ORing, above 24 A, the two channels
provided on the evaluation board can be paralleled in a
master/slave configuration and OR'd with a second evaluation
board.
The PI2121-EVAL1 evaluation board is designed with
optimized PCB layout and component placement to represent
a realistic high density final design for an embedded Active
ORing solution for ≤ 5V bus applications requiring up to 24 A.
This evaluation board is intended as an easy and simple way
to test the electrical and thermal performance of the PI2121
Full-Function Active ORing solution.
Both dynamic and steady state testing of the PI2121 can be
completed on the PI2121-EVAL1 evaluation board, in addition
to using the key features of the product. Dynamic testing can
be completed under a variety of system level fault conditions
to check for response time to faults.
This document provides basic instructions for initial start-up
and configuration of the evaluation board. Further
information on the functionality of the PI2121 can be found
in the PI2121 product data sheet.
PI2121-EVAL1
Cool-ORing
™
Series
PI2121-EVAL1 Full-Function Active ORing
Evaluation Board User Guide
®
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1
PI2121 Product Description . . . . . . . . . . . . . . . . . . Page 2
Evaluation Board Terminal Description . . . . . . . . Page 2
Evaluation Board Schematic . . . . . . . . . . . . . . . . . Page 3
Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3
Evaluation Board Configuration . . . . . . . . . . . . . . Page 4
Test Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4
Thermal Images . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 9
PCB Layouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 10
Evaluation Board Mechanical Drawing . . . . . . . Page 11
PI2121-EVAL1 Evaluation Board
featuring the Cool-ORing PI2121
Full-Function Active ORing Solution.
Cool-ORing™ Series
The PI2121-EVAL1 Evaluation Board is intended to acquaint the
user with the benefits and features of the Cool-ORing
TM
PI2121
full function Active ORing solution. It is not designed to be
installed in end-use equipment.
Please read this document before setting up the PI2121-EVAL1
Evaluation Board and refer to the PI2121 product data sheet
for device specifications, functional description and
characteristics.
During operation, the power devices and surrounding
structures can be operated safely at high temperatures.
• Remove power and use caution when connecting and
disconnecting test probes and interface lines to avoid
inadvertent short circuits and contact with hot surfaces.
• When testing electronic products always use approved
safety glasses. Follow good laboratory practice and
procedures.