STGWT28IH125DF datasheet by STMicroelectronics

STGWT28IH125DF Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  STMicroelectronics provides a recommended PCB layout in the application note AN5046, which includes guidelines for thermal vias, copper pours, and component placement to minimize thermal resistance and ensure reliable operation.
• How do I select the correct gate driver for this IGBT?
  The STGWT28IH125DF requires a gate driver with a minimum output current of 2A and a voltage rating of at least 15V. STMicroelectronics recommends using their L639x or STDRIVE601 gate driver families, which are specifically designed for IGBTs like the STGWT28IH125DF.
• What is the maximum allowed overshoot voltage during turn-on and turn-off?
  The maximum allowed overshoot voltage during turn-on and turn-off is 20% of the maximum rated voltage (1250V). This is specified in the datasheet, but it's essential to ensure that the gate driver and PCB layout are designed to minimize overshoot and ringing to prevent damage to the IGBT.
• How do I protect the IGBT from overcurrent and overtemperature?
  STMicroelectronics recommends using a combination of overcurrent protection (OCP) and overtemperature protection (OTP) circuits to prevent damage to the IGBT. The OCP can be implemented using a sense resistor and a comparator, while the OTP can be achieved using a thermistor or a temperature sensor connected to a microcontroller or a dedicated OTP IC.
• What is the recommended storage and handling procedure for this IGBT?
  The STGWT28IH125DF is an electrostatic-sensitive device (ESD) and requires proper storage and handling procedures to prevent damage. STMicroelectronics recommends storing the devices in their original packaging, using ESD-safe materials, and following proper handling and soldering techniques to prevent damage during assembly.