TP65H035WSQA - Transphorm

TP65H035WSQA Frequently Asked Questions (FAQs)

• What is the recommended PCB layout and thermal design for optimal performance?
  Transphorm provides a reference design guide and thermal design guidelines in their application notes and whitepapers. It's essential to follow these guidelines to ensure proper heat dissipation and minimize parasitic inductance.
• How do I select the right gate driver for this GaN FET?
  Choose a gate driver that can provide a high peak current (>10A) and has a low output impedance to ensure fast switching times. Additionally, consider the driver's ability to handle the GaN FET's high threshold voltage (Vth) and ensure it can provide a sufficient voltage swing to fully turn on the device.
• What are the reliability and ruggedness tests that Transphorm has performed on this device?
  Transphorm has performed various reliability tests, including High Temperature Operating Life (HTOL), Temperature Cycling, and Power Cycling, to ensure the device meets industry standards. They also provide detailed information on the device's ruggedness and fault tolerance in their datasheet and application notes.
• How do I ensure safe operation and prevent damage during startup and shutdown?
  Implement a soft-start circuit to limit inrush current during startup, and use a shutdown circuit to slowly discharge the gate voltage to prevent voltage spikes. Additionally, ensure the device is properly biased during operation, and consider using overcurrent and overvoltage protection circuits.
• What are the EMI and RFI considerations for this GaN FET?
  Due to the high-frequency operation of GaN FETs, it's essential to follow proper PCB layout and shielding techniques to minimize EMI and RFI. Transphorm provides guidelines on EMI mitigation in their application notes, and it's recommended to use a common-mode choke and shielding to reduce emissions.