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TDDCDC-TPH-BI-LLC-300W-RD
Open frame 300W DCDC Isolated Bidirectional Battery Charger Reference Design using Transphorm SuperGaN® Technology.
The TDDCDC-TPH-BI-LLC-300W-RD is a 300W DC 380V to and from 48V DC isolated bidirectional battery charger implementing LLC full bridge with peak efficiency of greater than 97.3%, a power density of 36.5W/in3 using 4 Transphorm GaN TP65H150G4PS (650 V SuperGaN FET) TO-220 with Transphorm’s latest SuperGaN® Gen IV technology with output voltage (48V/6A, 380V/0.9A) and natural convention without forced air. This design illustrates a fully analog implementation without microprocessor/DSP firmware development for the power stage. This should serve well as a platform for simpler, much shorter time in development, high-power level, and highly efficient bidirectional battery charger system.
This DC-DC adapter is ideal for applications such as high-power-density as a DC/DC power section in AC/DC bidirectional power supplies, home appliance energy hubs, 2/3-wheeler battery chargers, data centers, etc.
Features
- Transphorm SuperGaN TP65H150G4PS TO-220 x 4
- Full bridge LLC topology
- Board-end over ~97.3% efficiency
- Flat efficiency across wide Load range
- Tight switching frequency regulation
- Up to 210 kHz switching frequency operation
- OTP, UVLO, OCP, OSC and output reverse polarity protections
- < 500mW no load power consumption
- Up to 300 W output power
Applications
- 2/3-wheeler battery charger
- Home appliance energy hub
- Fast charging
- Laptops and IoT devices
- Battery powered home energy
Typical Performance Curves
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