Coilcraft has introduced its new HTX8045C Series LLC Half-Bridge Transformers, advancing compact power conversion with high isolation voltage and exceptionally low interwinding capacitance. Tailored for isolated gate driver bias supplies in next-generation power systems, the HTX8045C brings higher efficiency, lower EMI, and robust automotive-grade reliability.

Key Features

• Ultra-Low Interwinding Capacitance: With capacitance as low as 0.55 pF, the HTX8045C minimizes EMI and delivers high Common Mode Transient Immunity (CMTI), essential for fast-switching wide-bandgap semiconductors like SiC and GaN.
• High Isolation Performance: Provides 5000 VDC (3535 Vrms) isolation between primary and secondary windings, ensuring safe and reliable operation in high-voltage environments.
• Compact Chip-Style Construction: Measuring only 4.85 × 8.20 × 5.30 mm, the transformer’s chip-style design improves board space efficiency and enables cost-effective automated manufacturing.
• Automotive-Grade Qualification: Fully AEC-Q200 qualified with an operating temperature range of –40°C to +125°C, making it suitable for harsh automotive and industrial environments.
• Flexible Design Options: Available in multiple turn ratios (including 1:1, 1.5:1, and 2:1) with inductance options from 75 to 120 µH, the series supports a wide range of bias supply designs

Applications

The HTX8045C is engineered for:

• Automotive: traction inverters, onboard chargers (OBCs), EV charging stations, battery management systems (BMS), and DC-DC converters.
• Industrial: high-frequency motor controls, renewable energy systems, and rugged embedded power supplies.
• Power Electronics: optimized for use with Texas Instruments’ UCC25800-Q1 gate driver IC, supporting SiC, GaN, and IGBT switching devices.

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