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Infineon EVAL1ED3491MX12M Evaluation Board demonstrates the functionality, adjustment possibilities, and features of the EiceDRIVER™ 1ED-X3 analog gate driver ICs. The board has a size of 85 x 55 x 15mm3 without any power switch assembled. This board is best suited for so-called double-pulse testing and evaluation. For continuous operation, the thermal and load power should be taken into consideration. It is recommended to add high-voltage DC blocking capacitors at the high-voltage supply.
The low-voltage interface can be controlled by a pulse generator, a microcontroller, or any other digital circuits. The adjustable DESAT filters can be adjusted by replacing the resistor attached to the ADJB pin of each gate driver IC. Similarly, the soft-off current after DESAT detection can be adjusted by replacing the resistor attached to the ADJA pin of each gate driver IC.
The evaluation board has a power supply for the primary and secondary sides implemented. This allows the user to evaluate the gate driver by only supplying a 15V input voltage. Jumper J40 can be used to adjust the primary side operation voltage, between 5V and 3.3V. In case the user wants to use its power supply, jumper J70 can be used to disable the power supply for the primary and secondary sides. Different LEDs across the board are used as visual feedback on the state of the board, showing the presence of the supply voltages and the state of the fault pins.
Infineon Power and Sensing Selection Guide
