Isolated gate driver ICs for EV applications

Infineon Technologies AG has introduced new isolated gate driver ICs for EVs to enhance its EiceDRIVER family. The devices are designed for the latest IGBT and SiC technologies. Also, they support the company's new HybridPACK Drive G2 Fusion module, the first plug'n'play power module that implements a combination of Infineon's silicon and SiC technologies. The pre-configured third-generation EiceDRIVER products, 1EDI302xAS (IGBT) and 1EDI303xAS (SiC/ Fusion), are AEC-qualified and ISO 26262-compliant, ideal for traction inverters in cost-effective and high-performant xEV platforms.

The devices 1EDI3025AS, 1EDI3026AS and 1EDI3035AS deliver a strong output stage of 20A and drive high-performance inverters of all power classes up to over 300kW. The variants 1EDI3028AS and 1EDI3038AS with an output stage of 15A are excellent for use in entry-level BEV and PHEV inverters and for the excitation circuit of externally excited synchronous machines (EESM). Also, the devices are equipped with the new tunable soft-off feature, which supplies excellent short-circuit performance to support the latest SiC and IGBT technologies.

Various monitoring functions, such as an integrated self-test for DESAT and OCP, improve the handling of latent system errors, while the new primary and secondary safe-state interface allows versatile system safety concepts. Also, a continuously sampling 12-bit delta-sigma ADC with an integrated current source can read the voltage directly from temperature measurement diodes or an NTC. The gate drivers also provide reinforced insulation according to VDE 0884-17:2021-10 to enable safe isolation following standardized qualification and production testing procedures. Furthermore, the compact package (PG-DSO-20) and excellent compatibility with the latest power stage technologies help customers to drive system integration and lower design cycle times.

The new EiceDRIVER isolated gate driver ICs for EV (1EDI3025AS, 1EDI3026AS, 1EDI3028AS, 1EDI3035AS, 1EDI3038AS) can be ordered and samples are available.