IX21844 Evaluation Board Users Guide INTEGRATED CIRCUITS DIVISION 1. Introduction IXYS Integrated Circuits Division s IX21844 evaluation board contains all the necessary circuitry to demonstrate the features of a high voltage gate driver configured as a half-bridge driver. IX21844 has dependent high-side and low-side referenced output channels, which are capable of sourcing 1.4A and sinking 1.8A peak current. The floating high-side channel can drive MOSFETs or IGBTs up to 600V from the common reference. The IX21844 features a user-programmable deadtime circuit that can be set with an external resistor. In addition, when a fault or an over-current condition is detected, the devices shutdown (SD) pin can be used to terminate gate drive to the high-side and low-side switches. 1.1 Features: Floating Channel for Bootstrap Operation up to 600V Programmable Deadtime Outputs Capable of Sourcing 1.4A Peak Current and Sinking 1.8A Peak Current Gate Drive Supply Range: 10V to 20V 3.3V Logic Compatibility Enables Seamless Interface with Micro-Controllers Independent Under-Voltage Lockout (UVLO) Function for Both High-Side and Low-Side Outputs Schmitt-Trigger Inputs at IN and SD Provide Better Noise Immunity High dV/dt Capability: 50V/ns Negative Voltage Transient Protection: -5V IX21844-UG R01 www.ixysic.com 1IX21844 Evaluation Board Users Guide INTEGRATED CIRCUITS DIVISION Figure 1. Evaluation Board Layout, Top View Figure 2. Evaluation Board Layout, Bottom View 1.2 Evaluation Board Pin Descriptions Pin Name Description HV High Voltage Bus V High-Side Floating Supply Return S V Logic Ground SS V Low-Side and Logic Fixed Supply Voltage CC Logic Input for Shutdown, Active Low SD IN Logic Input for High-Side and Low-Side Outputs COM Low-Side Return T COM Test Point, Low-Side Return 1.3 Evaluation Board Bill of Materials Ref. Des. Qty. Description Manufacturer Mfr. P/N U1 1 High-Side and Low-Side Gate Driver IXYS IC Division IX21844N Q1, Q2 2 Polar HV MOSFET 800V 10A TO-220 IXYS IXFP10N80P R1, R4 2 RES 47 Ohm 1/8W 5% 0805 SMD YAGEO RC0805JR-0747RL R2, R3, R 3 RES 4.7 Ohm 1/8W 5% 0805 SMD YAGEO RC0805JR-074R7L B D1, D2 2 DIODE Fast Recovery 30V 1A Mini2 PANASONIC DB2230400L D 1 DIODE Super Fast 600V 1A Diodes Inc. MURS160-13-F B CV , CV , C 3 CAP CER 0.33F X7R 1206 TDK C3216X7R1H334K160AA CC SS B CVBUS 1 CAP FILM 0.56F 630VDC Radial Panasonic P12270 2 www.ixysic.com R01