The HTX7045C-124FRC is a half-bridge transformer for isolated gate driver bias supplies, optimized for SiC and GaN gate drivers in automotive applications. It features a 1.2:1 turns ratio, 120 µH primary inductance, 0.42 Ω primary DCR, 7.5 A RMS current rating, 38.8 V-µs volt-time product, and 0.75 pF interwinding capacitance. The device is AEC-Q200 qualified, supports ambient temperatures from -40°C to +125°C, and has a maximum part temperature of +140°C. It is packaged in 16 mm wide embossed plastic tape on a 7-inch reel, with RoHS-compliant tin over nickel over silver glass frit terminations. Isolation is rated at 4000 VDC for one minute between windings.
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.
| Coilcraft, Inc. | |
|---|---|
| Product Category | Power Transformers |
| Product Number | HTX7045C-124FR HTX7045C-124FRC |
| Product Name | HTX7045C LLC Half-Bridge Transformers For isolated gate driver bias supply |
| Transformer Type | Isolation |
