TEST REPORT
Highly-Integrated, 12-V, 100-mA, Dual-Output, Isolated Bias Supply Reference Design
Description
This reference design generates two isolated
+12-V rails at 100 mA each from a 12-VDC input voltage. The design is optimized for a small footprint by employing a primary resonant LLC topology with a single UCC25800 driver and a transformer with functional insulation.
Features
- Small size with simplified LLC design
- High efficiency: 85% at full load
- Dual output for high-side (HS) and low-side (LS) drivers
- Employs small and low-cost transformer
Applications
- GaN, IGBT and SiC gate transformer driver bias supply
- Automotive onboard charger (OBC)
- Automotive DC/DC converter
- Automotive traction inverter and motor control
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