USERS MANUAL ISLACDC750WEVKIT1Z UG043 Rev. 1.00 Boost PFC and Asymmetrical Full-Bridge ZVS Converter Apr 30, 2018 Description Key Features The ISLACDC750WEVKIT1Z uses an active PFC and Current sharing asymmetrical full-bridge ZVS converter and targets ATX PC ORing: hot swap power supply applications. With a 400V DC bus, the converter OVP/OTP/UVP can output 12V at 62.5A. The efficiency performance can reach upward of 80%. Overall protection functions such as OCP: constant current input overvoltage and undervoltage protection, output Stand-by mode turn off PFC and DC/DC overvoltage, overcurrent, over-temperature, and short-circuit protection make the circuit very reliable. The PSON pin Related Literature provides an interface to remotely control the board, and a For a full list of related documents, visit our website Power-Good (PG) pin indicates the working condition of the circuit. The circuit can also be adapted to a battery charger. ISL6754, ISL6731A, ISL6731B, ISL6721 product pages The ISLACDC750WEVKIT1Z consists of the following components. Ordering Information TABLE 1. ISLACDC750WEVKIT1Z Components PART NUMBER DESCRIPTION Component Type Name ISLACDC750WEVKIT1Z Boost PFC and Asymmetrical Full-Bridge ZVS converter ISLACDC750W-MBEV1Z Motherboard MB ISL6731x-DB-1Z Daughter board PFDB Recommended Test Equipment ISL6721-DB-1Z Daughter board BiasDB The following materials are recommended to perform testing: ISL6754DBEVAL2Z Daughter board ZVSDB Power analyzer AC source: 1kW Specifications Electronic loads: 12V, 750W minimum The ISLACDC750WEVKIT1Z is designed for high current applications. The current rating is limited by the FETs and the DVM transformer and inductor selected. The electrical ratings are 100MHz quad-trace oscilloscope shown in Table 2. TABLE 2. ELECTRICAL RATINGS PARAMETER RATING Input Range 90 to 264V AC Output Voltage 12V DC Power 750W UG043 Rev. 1.00 Page 1 of 30 Apr 30, 2018ISLACDC750WEVKIT1Z Motherboard and Daughter Boards FIGURE 1. MOTHERBOARD ISLACDC750W-MBEV1Z FIGURE 2A. ISL6721-DB-1Z ISL6754DBEVAL2Z FIGURE 2B. ISL6731x-DB-1Z FIGURE 2C. ISL6754DBEVAL2Z FIGURE 2. DAUGHTER BOARDS UG043 Rev. 1.00 Page 2 of 30 Apr 30, 2018