PI2007-EVAL1 Cool-ORing Series PI2007-EVAL1 48V Bus 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 Initial Test Set Up ................................................. 5 Recommended Material ....................................... 5 PCB Layout............................................................ 8 PI2007-EVAL1 Evaluation Board featuring the Cool-ORing PI2007 Mechanical Drawing ............................................. 9 Active ORing controller. The PI2007-EVAL1 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 Active ORing controller. It is not Remove power and use caution when connecting and designed to be installed in end-use equipment. disconnecting test probes and interface lines to avoid Please read this document before setting up the inadvertent short circuits and contact with hot PI2007-EVAL1 Evaluation Board and refer to the PI2007 surfaces. product datasheet for device specifications, functional When testing electronic products always use approved description and characteristics. safety glasses. Follow good laboratory practice and procedure. Introduction The PI2007-EVAL1 allows the user to test the basic embedded high side Active ORing solution for 48V Bus (36V principles and operational characteristics of an Active to 75V) applications requiring up to 6 A. This evaluation ORing function in a redundant power architecture, while board is intended as an easy and simple way to test the also experiencing the benefits and value of the PI2007 electrical and thermal performance of the PI2007 Active solution versus conventional Active ORing solutions. The ORing controller. PI2007-EVAL1 evaluation board is configured to receive Both dynamic and steady state testing of the PI2007 can be two independent power source inputs, per a typical completed on the PI2007-EVAL1 evaluation board, in redundant power architecture, through two Active ORing addition to using the key features of the product. Dynamic channels that are combined to form a redundant power testing can be completed under a variety of system level output. Each channel contains a PI2007 controller and a fault conditions to check for response time to faults. 100V N-channel power MOSFET. The MOSFET foot print This document provides basic instructions for initial start-up can take an SO-8 or Power SO-8 MOSFET package. Each channel is capable of up to 6A. and configuration of the evaluation board. Further information on the functionality of the PI2007 can be found The PI2007-EVAL1 evaluation board is designed with 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-EVAL1 User Guide Rev. 1.1 Page 1 of 10 Cool-ORing PI2007 Product Description The Cool-ORing PI2007 with an external industry standard 100V N-channel MOSFET provides a complete Active ORing solution designed for use in wide range (36V to 75V) 48V Bus 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 provides an active low fault flag output to the system Terminals Maximum Rating: during excessive forward current or reverse current, or during a VC under voltage. 75Vdc/6A Vin1, Vin2, 100V (100ms pulse) Figure 1 shows a photo of the PI2007-EVAL1 evaluation board, with two PI2007 controllers and two N-channel 75V/12A Vout MOSFETs used to form the two Active ORing channels. 100V (100ms pulse) The board is built with two identical Active ORing circuits -0.3V to 17.3V / 10mA 1, 2 with options and features that enable the user to fully explore the capabilities of the PI2007 Active ORing VL1, VL2 (R5=R6=1.5k)* 5.5V controller. * VL1, VL2 voltage can be higher than 5.5V, but R5 and R6 values have to be increased to accommodate the LEDs Figure 1: PI2007-EVAL1 Evaluation Board PCB (1.8 x 1.8) Terminal Description Vin1 Power source Input 1 or bus input designed to accommodate up to 6A continuous current. Vin2 Power source Input 2 or bus input designed to accommodate up to 6A continuous current. PI2007 (U1) Fault pin: Monitors U1 fault conditions and level shifted to be referenced to the Rtn terminal 1 PI2007 (U2) Fault pin: Monitors U2 fault conditions and level shifted to be referenced to the Rtn terminal EN1 PI2007 (U1) Enable: leave open to enable the PI2007 and connect to return (Low) to disable PI2007 EN2 PI2007 (U2) Enable: leave open to enable the PI2007 and connect to return (Low) to disable PI2007 VL1 Fault pin 1 LED supply VL2 Fault pin 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. Rtn Input supplies Vin1, Vin2, and the output load at Vout should all be connected to their respective local Rtn connection. Table 1: PI2007-EVAL1 Evaluation Board Terminals Description Picor Corporation picorpower.com PI2007-EVAL1 User Guide Rev. 1.1 Page 2 of 10