HVC4420F

Overview

The HVC4420F is a fully integrated embedded motor controller designed for automotive applications, specifically targeting smart actuators. It features an Arm Cortex-M3 core with 64 kbyte flash memory and 4 kbyte SRAM. The device supports operation from 5.4 V to 18 V with dual-mode 40 V load-dump resistance. Key peripherals include three integrated N-channel MOSFET half-bridges, LIN 2.1 interface, UART, SPI, and a 12-bit multi-channel ADC. It operates within an ambient temperature range of -40°C to 150°C and utilizes a PQFN40 package.

Feature Summary

• Integrates an Arm Cortex-M3 microcontroller core with extended memory resources including 64 kbyte flash and 4 kbyte SRAM.
• Provides flexible motor drive capabilities through three internal half-bridges or control of external MOSFETs.
• Supports advanced diagnostic functions and networking via built-in LIN 2.1 and UART interfaces.
• Includes comprehensive system supervision features such as voltage, current, and temperature monitoring.

Applications

• HVAC flap actuators
• Remote smart actuators
• Thermal management systems

Procurement Notes

Verify the specific revision level and packaging configuration directly with TDK-Micronas or authorized distributors before ordering. Ensure that the design environment meets the specified operating temperature range and voltage requirements. Confirm that the required firmware development tools are compatible with the Cortex-M3 architecture and available memory constraints.

Selection Notes

Select this component when a single-chip solution is required for driving small brushed, stepper, or brushless DC motors in automotive environments. It is suitable for designs needing integrated diagnostics and communication protocols like LIN. Consider alternative family members if fewer than six motor outputs are needed or if different memory configurations better match the application software complexity.

Part Context

The HVC4420F belongs to the Micronas HVC 4x flex servo-drive family, which serves as a foundational portfolio for fully integrated motor control. This series is distinguished by its high integration level, combining processing, power drivers, and sensing interfaces into a compact form factor. It addresses industry demands for reducing system weight and dimensions while maintaining long-term reliability in harsh automotive conditions.

Replacement Considerations

The HVC 4422F is a confirmed substitute within the same family, offering identical functional specifications but with a different memory configuration (64 kbyte flash and 4 kbyte SRAM). Designers should verify pin compatibility and software adaptability when transitioning between these variants.