SECO-GDBB-GEVB

EVBUM2702/D Gate Drivers Base Board - Evaluation Board User s Manual Description SECOGDBBEVB is a baseboard conceived for use as a plug and www.onsemi.com play environment for testing various types of gate drivers. The main goal is to feed the drivers with the same control signal under same EVAL BOARD USERS MANUAL conditions and compare their capabilities. It is set up to accommodate up to six driver boards (daughter boards) designed to test gate drivers functions and features (all driver boards are pin compatible with baseboard). User can choose to place capacitor or power device as a load to the driver. Power devices are soldered to the board or connected to the board using screw terminals (TO247 packages). PWM signal is generated on board and is activated supplying voltage to the board. Onboard PWM is adjustable and user can define frequency in range of 10200kHz and duty cycle 0100%. For finetuning and wider frequency range, it is possible to connect signal generator with BNC connector. Nominal supply voltage is 15 V. Three isolated DC/DC converters provide supply for driver boards. Additional power connector is available to supply power devices, which are protected with 10 k resistors. Board is not designed for power testing. Features Plug and Play Figure 1. Evaluation Board Photo Adjustable Onboard PWM (Frequency and Duty Cycle) External PWM Generator 3 Isolated DC/DC Power Supplies for Driver Boards Gate Current and Gate Voltage Measurement Supply Voltage Range 15 V 1V Figure 2. Block Diagram Semiconductor Components Industries, LLC, 2019 1 Publication Order Number: July, 2020 Rev. 2 EVBUM2702/DEVBUM2702/D User Interface Locations Figure 3. Board and Notable Segments Voltage Supply Once user has daughter boards with drivers to test, he should mount them into specified connectors. NOTE: Customer should take care on voltage supply for driver boards. Two middle positions on baseboard have supply of +20/4 V, intended for SiC drivers. Other channels are supplied with +15/9 V. Each channel provides also unipolar supply. After applying supply voltage to the board, all DC/DC converters will supply driver boards. (Figure 4.) Figure 4. www.onsemi.com 2