TDTTP2500P100-KIT Transphorm

User Guide TDTTP2500P100: 2.5kW Bridgeless Totem-pole PFC Evaluation Board Overview This user guide describes the TDTTP2500P100 0v1 2.5kW bridgeless totem-pole power factor correction (PFC) evaluation board. Very high efficiency single-phase AC-DC conversion is achieved with the TPH3212PS, 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/tp25kit. The TDTTP2500P100 0v1-KIT is for evaluation purposes only. Figure 1. TDTTP2500P100 0v1 2.5kW 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. November 16, 2017 2017 Transphorm Inc. Subject to change without notice. evk009.0 1 TDTTP2500P100 User Guide The TDTTP2500P100-KIT includes: TDTTP2500P100 totem-pole PFC assembly Texas Instruments F28335 control card 12V auxiliary power adaptor DC Complete design files and support documentation can be found online at transphormusa.com/tp25kit. TDTTP2500P100 input/output specifications Input voltage: 85V to 265V , 47Hz to 63Hz AC AC Input current: 18A 1250W at 115V , 2500W at 230V RMS AC AC 10% overload short time: 11ARMS 1250W at 115VAC, 2500W at 230VAC Ambient temperature: <50C Output voltage: 390V 5V DC DC PWM frequency: 100kHz Auxiliary supply: 12V for bias voltage DC Power dissipation in the GaN FET: Limited by the maximum junction temperature refer to the TPH3212PS 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 TDTTP2500P100 0v1 November 16, 2017 evk009.0 2