PI2007-EVAL2 Cool-ORing Series PI2007-EVAL2 12V/15A High Side Active ORing Evaluation Board User Guide Cool-ORing Series Content Page Introduction ......................................................... 1 Product Description ............................................ 2 Schematic ........................................................... 3 Bill of Material...................................................... 4 Test Procedure .................................................... 5 Recommended Material ...................................... 5 PCB Layout ......................................................... 8 PI2007-EVAL2 Evaluation Board Mechanical Drawing ............................................ 8 featuring the Cool-ORing PI2007 Active ORing controller. The PI2007-EVAL2 Evaluation Board is intended to During operation, the power devices and surrounding acquaint the user with the benefits and features of the structures can be operated safely at high temperatures. Cool-ORing PI2007 full function Active ORing solution. Remove power and use caution when connecting It is not designed to be installed in end-use equipment. and disconnecting test probes and interface lines to Please read this document before setting up the avoid inadvertent short circuits and contact with hot PI2007-EVAL2 Evaluation Board and refer to the surfaces. PI2007 product datasheet for device specifications, When testing electronic products always use functional description and characteristics. approved safety glasses. Follow good laboratory practice and procedures. Introduction The PI2007-EVAL2 allows the user to test the basic embedded high side Active ORing solution for 12V Bus principle and operational characteristics of an Active ORing (10V to 14V) applications requiring up to 15A. This function in a redundant power architecture, while also evaluation board is intended as an easy and simple way to experiencing the benefits and value of the PI2007 solution test the electrical and thermal performance of the PI2007 versus conventional Active ORing solutions. The PI2007- Active ORing controller. EVAL2 evaluation board is configured to receive two Both dynamic and steady state testing of the PI2007 can be independent power source inputs, per a typical redundant completed on the PI2007-EVAL2 evaluation board, in power architecture, through two Active ORing channels addition to using the key features of the product. Dynamic that are combined to form a redundant power output. testing can be completed under a variety of system level Each channel contains a PI2007 controller and a 25V N- fault conditions to check for response time to faults. channel power MOSFET. The MOSFET foot print can take an SO-8 or Power SO-8 MOSFET package. Each channel is This document provides basic instructions for initial start- up and configuration of the evaluation board. Further capable of up to 15A. information on the functionality of the PI2007 can be The PI2007-EVAL2 evaluation board is designed with found in the PI2007 product data sheet. optimized PCB layout and component placement to represent a realistic high density final design for an Picor Corporation picorpower.com PI2007-EVAL2 User Guide Rev. 1.1 Page 1 of 9 Cool-ORing PI2007 Product Description The Cool-ORing PI2007 with an external industry standard 25V N-channel MOSFET provides a complete Active ORing solution designed for use in 12V Bus (10V to 14V) redundant power system architectures. The PI2007 controller with an N-channel MOSFET enables extremely low power loss with fast dynamic response to fault conditions, critical for high availability systems. The PI2007 controller with a low R N-channel DS(on) MOSFET provides very high efficiency and low power loss during steady state operation. The PI2007 controller Terminals Maximum Rating provides an active low fault flag output to the system Vin1, Vin2, 25V/15A during excessive forward current or reverse current, or under VC under voltage condition. Vout 25V/30A Figure 1 shows a photo of the PI2007-EVAL2 evaluation -0.3V to 17.3V / 10mA 1, 2 board, with two PI2007 controllers and two N-channel VL1, VL2 (R5=R6=1.5k)* 5.5V MOSFET used to form the two Active ORing channels. The * VL1, VL2 voltage can be higher than 5.5V, but R5 and R6 board is built with two identical Active ORing circuits with values have to be increased to accommodate the LEDs options and features that enable the user to fully explore the capabilities of the PI2007 Active ORing controller. Figure 1: PI2007-EVAL2 Evaluation Board (1.8 x 1.8) Terminal Description Vin1 Power source Input 1 or bus input designed to accommodate up to 15A continuous current. Vin2 Power source Input 2 or bus input designed to accommodate up to 15A continuous current. PI2007 (U1) Fault pin: Monitors U1 fault conditions. 1 2 PI2007 (U2) Fault pin: Monitors U2 fault conditions. VC1 PI2007 (U1) VC input: Leave this pin unconnected unless an alternative controller bias voltage. VC2 PI2007 (U2) VC input: Leave this pin unconnected unless an alternative controller bias voltage. VL1 Fault pin 1 LED supply VL2 Fault pin 2 LED supply Vout Output: Q1 and Q2 MOSFETs drain connection, connect to the load high side. Return Connection: Three Rtn connections are available and are connected to a common point, the Ground plane. Input Rtn supplies Vin1, Vin2, and the output load at Vout should all be connected to their respective local Rtn connection. Table 1: PI2007-EVAL2 Evaluation Board Terminals Description Picor Corporation picorpower.com PI2007-EVAL2 User Guide Rev. 1.1 Page 2 of 9