PI2003-EVAL1 Vicor

PI2003-EVAL1 Cool-ORing Series PI2003-EVAL1 Active ORing Evaluation Board User Guide Cool-ORing Series Contents Introduction Page 1 PI2003 Product Description Page 2 Evaluation Board Terminal Description Page 2 Evaluation Board Schematic . Page 3 Bill of Materials . Page 3 Test Procedure Page 4 PCB Layouts Page 7 Evaluation Board Mechanical Drawing Page 7 PI2003-EVAL1 Evaluation Board featuring the Cool-ORing PI2003 Active ORing controller. The PI2003-EVAL1 Evaluation Board is intended to acquaint the During operation, the power devices and surrounding TM user with the benefits and features of the Cool-ORing PI2003 structures can be operated safely at high temperatures. full function Active ORing solution. It is not designed to be Remove power and use caution when connecting and installed in end-use equipment. disconnecting test probes and interface lines to avoid Please read this document before setting up the PI2003-EVAL1 inadvertent short circuits and contact with hot surfaces. Evaluation Board and refer to the PI2003 product data sheet When testing electronic products always use approved for device specifications, functional description and safety glasses. Follow good laboratory practice and characteristics. procedures. Introduction simple way to test the electrical and thermal performance of The PI2003-EVAL1 allows the user to test the basic principle the PI2003 Active ORing controller. and operational characteristics of a low side Active ORing function in a redundant power architecture, while also Both dynamic and steady state testing of the PI2003 can be experiencing the benefits and value of the PI2003 solution completed on the PI2003-EVAL1 evaluation board, in addition versus conventional Active ORing solutions. The PI2003-EVAL1 to using the key features of the product. Dynamic testing can evaluation board is configured to receive two independent be completed under a variety of system level fault conditions power source inputs, per a typical redundant power to check for response time to faults. architecture, through two Active ORing channels that are This document provides basic instructions for initial start-up combined to form a redundant power output. Each channel and configuration of the evaluation board. Further contains a PI2003 controller and an N-channel power information on the functionality of the PI2003 can be MOSFET. The MOSFET foot print can take an SO-8 or Power found in the PI2003 product data sheet. SO-8 MOSFET package. Each channel is capable of up to 6 A. The PI2003-EVAL1 evaluation board is designed with optimized PCB layout and component placement to represent a realistic high density final design for an embedded low side Active ORing solution for -48 Vbus applications requiring up to 6 A. This evaluation board is intended as an easy and Picor Corporation www.picorpower.com PI2003-EVAL1 User Guide Rev 1.0 Page 1 of 8TM Cool-ORing PI2003 Product Description The Cool-ORing PI2003 with an external industry standard 100V N-channel MOSFET provides a complete Active ORing solution designed for use in -48 Vbus redundant power system architectures. The PI2003 controller with an N-channel MOSFET enables extremely low power loss with fast dynamic response to fault conditions, critical for high availability systems. The PI2003 controller with a low Rds(on) N-channel MOSFET provides very high efficiency and low power loss during steady state operation. The PI2003 controller provides an active low fault flag output to the system during excessive forward current, light load, or reverse current. Figure 1 shows a photo of the PI2003-EVAL1 evaluation board, with two PI2003 controllers and two N-channel MOSFET used to form the two Active ORing channels. The Terminals Rating board is built with two identical Active ORing circuits with Vin1+ to Vin1-, 60 V / 8 A options and features that enable the user to fully explore the Vin2+ to Vin2- 60 V / 8 A capabilities of the PI2003 universal Active ORing controller. VC1, VC2 -0.3 V to 17.3 V / 40 mA FT1, FT2 -0.3 V to 17.3 V / 10 mA Figure 1 PI2003 -EVAL1 Evaluation Board (1.8 x 1.8 ) Terminal Description Vin1+ and Vin1- Power Source Input 1: or bus input designed to accommodate up to 60 V and 6 A continuous current. Vin1+ and Vin1- Power Source Input 2: or bus input designed to accommodate up to 60 V and 6 A continuous current. VC1 Optional Auxiliary Input Voltage 1: to supply PI2003 VC power. VC1 should be 10 V or higher to fully enhance the MOSFET. VC2 Optional Auxiliary Input Voltage 1: to supply PI2003 VC power. VC1 should be 10.V or higher to fully enhance the MOSFET. FT1 PI2003 (U1) Fault Pin: Monitors U1 fault conditions FT2 PI2003 (U2) Fault Pin: Monitors U2 fault conditions Vout + Output +: connected to input return Vout- Output -: connected to MOSFETs sources Table 1 PI2003-EVAL1 Evaluation Board terminals description Picor Corporation www.picorpower.com PI2003-EVAL1 User Guide Rev 1.0 Page 2 of 8