TDTTP4000W066B-KIT Transphorm

User Guide TDTTP4000W066B: 4kW Bridgeless Totem-pole PFC Evaluation Board Overview This user guide describes the TDTTP4000W066B 0v1 4kW bridgeless totem-pole power factor correction (PFC) evaluation board. Very high efficiency single-phase AC-DC conversion is achieved with the TP65H035WS, a diode-free Gallium Nitride (GaN) FET bridge with low reverse-recovery charge. Using GaN FETs in the fast-switching leg of the circuit and low-resistance MOSFETs in the slow-switching leg of the circuit results in improved performance and efficiency. For more information and complete design files, please visit transphormusa.com/tp4kit. The TDTTP4000W066B 0v1-KIT is for evaluation purposes only. Figure 1. TDTTP4000W066B 0v1 4kW totem-pole PFC evaluation board Warning This evaluation board is intended to demonstrate GaN FET technology and is for demonstration purposes only and no guarantees are made for standards compliance. There are areas of this evaluation board that have exposed access to hazardous high voltage levels. Exercise caution to avoid contact with those voltages. Also note that the evaluation board may retain high voltage temporarily after input power has been removed. Exercise caution when handling. When testing converters on an evaluation board, ensure adequate cooling. Apply cooling air with a fan blowing across the converter or across a heatsink attached to the converter. Monitor the converter temperature to ensure it does not exceed the maximum rated per the datasheet specification. September 1, 2017 2017 Transphorm Inc. Subject to change without notice. evk007.0 1 TDTTP4000W066B User Guide TDTTP4000W066B input/output specifications Input voltage: 85VAC to 265VAC, 47Hz to 63Hz Input current: 18Arms 2000W at 115V , 4000W at 230V ) AC AC 10% overload short time: 19.8Arms 2200W at 115VAC, 4400W at 230VAC) Ambient temperature: <50C Output voltage: 387V 5V DC DC PWM frequency: 66kHz Auxiliary supply: 12VDC for bias voltage Power dissipation in the GaN FET: Limited by the maximum junction temperature refer to the TP65H035WS datasheet Figure 2 shows the input and output connections. To reduce EMI noise, adding a ferrite core at both the input and output is recommended. Figure 2. Input and output cable connections TDTTP4000W066B 0v1 September 1, 2017 evk007.0 2