TDK Corporation is extending the power capability of its Micronas HVC 5x embedded motor controller family with the new high-voltage microcontroller (HVC) 5481G for automotive applications.
The HVC 5481G is a programmable gate driver system-on-chip (SoC) designed to control an external power bridge with six N-channel FETs for driving actuators, fans, and pumps. Samples are available now, with production scheduled to begin in 2026.
As EVs increasingly rely on electric thermal and body systems, efficient and compact motor control solutions like the HVC 5481G are essential for reducing power consumption and enabling smarter vehicle functionality.
The SoC is compatible with existing HVC 5x family software and integrates an ARM Cortex-M3 CPU with 64 KB of flash memory and 8 KB of SRAM. It operates directly from a 12-V automotive supply rail and includes a LIN transceiver for communication.
The device supports a variety of motor control algorithms, from sensor-less six-step commutation using BEMF detection to single shunt FOC. It features seven general-purpose I/O pins, internal timers, and capture compare registers, allowing for seamless interfacing with Micronas Hall-effect sensors or TDK TMR sensors.
Available in a compact 5 x 5 mm PQFN32 package and certified according to AEC-Q100 Grade 1 automotive standards, the HVC 5481G offers a robust and efficient solution for medium-power BLDC applications. Its high integration and feature set make it suitable for a wide range of automotive and industrial systems requiring reliable motor control.
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