How to pick and change EVALSTGAP2DM board external component values for driver performance evaluation? (STMicroelectronics UM2818 EVAL Isolated 4 A Single Gate Driver Demonstration Board User Manual)

Answer

manuals.plus

Feb 21, 2025 - 01:11 AM

To select and modify the values of external components on the EVALSTGAP2DM board, follow these steps:

1. Power Switch Selection: The board allows you to select and mount the power switch of your choice in either TO-220 or TO-247 package. Choose the appropriate power switch for your application.

2. Heatsink Installation (Optional): The board provides the option to install an optional heatsink for better thermal management. If needed, mount the heatsink on the board.

3. Gate Driving Section Supply: The board can be populated with isolated DC-DC converters in the standard SIP7 package to supply the gate driving section. These converters significantly reduce the effort required to supply the system and allow for easy evaluation of gate driving performance. Install the isolated DC-DC converters on the board.

4. Board Connectors: The board has several connectors for different purposes. Here are the main connectors:

- CN1 and CN2: These connectors provide the high-side and low-side VH supply voltages respectively.
- J1 and J2: These connectors provide the logic supply voltage (VDD) and logic ground (GND). They also have pins for high-side driver logic input (INA), low-side driver logic input (INB), shutdown input (SD), brake input (BRAKE), and auxiliary power supply (VAUX).
- CN3: This connector provides the high voltage power supply (HV).
- CN4: This connector is the power stage output.
- CN5: This connector is the power ground (GNDPWR).

5. Board Jumpers: The board has several jumpers that allow you to configure different settings. Here are the main jumpers:

- JP1 and JP2: These jumpers configure the HS and LS gate voltage respectively. Refer to Table 5 in the manual for different configurations.
- JP8 and JP9: These jumpers also configure the HS and LS gate voltage respectively. Refer to Table 5 for different configurations.
- JP12: This jumper configures the VDD logic supply. Refer to Table 3 in the manual for different configurations.

By selecting and modifying these components and jumpers, you can fine-tune the driver performance and evaluate it under different applicative conditions. Make sure to refer to the user manual for detailed instructions and guidelines on component selection and modification.