HVC5222C

Overview

The HVC5222C is an automotive-grade embedded motor controller from TDK-Micronas, designed for driving small brushed (BDC) or brushless (BLDC) motors. It integrates a 32-bit Arm Cortex-M3 CPU with 32 KB Flash, 2 KB SRAM, and 512 bytes EEPROM. The device features three half-bridge outputs capable of delivering up to 1 A peak current per phase. It includes a built-in LIN transceiver with automatic addressing support, a 12-bit ADC, and multiple timers. Qualified to AEC-Q100 Grade 1 standards, it operates within a wide voltage range and utilizes a compact 5x5 mm PQFN24 package.

Feature Summary

• Highly integrated single-chip solution combining control logic, power stage, and communication interfaces to minimize external component count.
• Built-in 32-bit Arm Cortex-M3 processor enabling sophisticated motor control algorithms such as Field Oriented Control (FOC).
• Integrated LIN transceiver supporting automatic addressing for robust vehicle network communication.
• AEC-Q100 Grade 1 qualification ensuring reliability in harsh automotive thermal management environments.

Applications

• Automotive HVAC systems including fan motors and flap actuators.
• Hybrid and electric vehicle (xEV) thermal management components like radiator grille shutters and coolant valves.
• Seat adjustment mechanisms and window lift motors.
• Compact automotive actuators requiring precise sensor-based or sensorless motor control.

Procurement Notes

Verify the specific ordering suffix against the official datasheet to confirm memory configuration and interface options. Ensure compatibility with existing system designs by checking pin-out alignment with previous HVC series generations. Confirm that the selected variant meets the required AEC-Q100 Grade 1 temperature certification for your target application environment. Validate software toolchain support for the integrated ARM Cortex-M3 core before initiating development.

Selection Notes

Select the HVC5222C when a balance of moderate current capacity and advanced processing is required for BLDC or BDC applications. Choose this model over higher-current variants if the load does not exceed 1 A peak phase current. Consider this part for designs needing integrated LIN communication without external transceivers. Evaluate the 32 KB Flash size against algorithm complexity requirements; upgrade to 64 KB variants only if additional code space or OTA capabilities are necessary.

Part Context

The HVC5222C belongs to the Micronas HVC 5x family of embedded motor controllers, representing an evolution from the earlier HVC 4x series. This family focuses on application-specific optimization, offering reduced size and cost while maintaining high integration. All devices in the HVC 5x line share a common Arm Cortex-M3 architecture and are pin-compatible within their respective current classes, facilitating design upgrades and scalability across different actuator requirements.

Replacement Considerations

The HVC5222C is pin-compatible with other devices in the HVC 5x family, such as the HVC5223C, which offers higher current capability. Designers may consider upgrading to the HVC5223C if increased peak current is needed without changing the PCB layout. Conversely, legacy HVC 4x series parts may be replaced, though software adaptation will be required due to architectural differences.

FAQ

Does the HVC5222C support sensorless motor control?

Yes, the HVC5222C supports both sensor-based and sensorless motor control strategies, including six-step commutation and Field Oriented Control (FOC).

What communication interfaces are integrated into the HVC5222C?

The device integrates a LIN transceiver with automatic addressing support via the Bus Shutdown Method (BSM), as well as UART and SPI interfaces for system connectivity.

Is the HVC5222C suitable for automotive thermal management applications?

Yes, it is qualified to AEC-Q100 Grade 1 standards and is specifically designed for compact actuator applications in HEV/EV thermal systems, such as fans and pumps.