Coilcraft’s New Chip-style LLC Transformers are Significantly Smaller Than Core and Bobbin Styles
HTX7045C Series transformers feature a chip-style construction – a significant advancement over traditional core and bobbin designs that not only reduces the size of the component, but also streamlines the manufacturing process, resulting in a more cost-effective solution.
It offers low interwinding capacitance (as low as 0.7 pF), making it particularly well-suited for use in isolated gate driver bias supplies employing the open-loop LLC topology to achieve ultra-low EMI noise and high CMTI (Common Mode Transient Immunity). These characteristics make it especially beneficial for high-frequency switches including SiC, GaN and IGBT technologies.
The HTX7045C is AEC qualified, making it ideal for automotive traction inverters and motor controls, automotive on-board chargers (OBC), EV charging stations, battery management systems (BMS), automotive DC-DC converters and wide range of other automotive and industrial applications.
- Low interwinding capacitance to minimize EMI and achieve high CMTI (Common Mode Transient Immunity)
- Optimized for isolated bias supplies for SiC and GaN gate drivers, such as Texas Instrument UCC25800-Q1
- Ideal for automotive OBC and traction Inverters in EV/HEV
- Highly automated for cost-effective and exceptional quality and reliability
- 2800 Vrms, 4000 VDC, one minute isolation (hipot) between primary and secondary windings.
- AEC-Q200 (–40°C to +125°C)
Courtesy of Coilcraft


