expands Micronas motor controller family HVC 5x

These new models offer significant improvements over the widely used HVC 5221D, doubling the drive current and SRAM, and quadrupling the EEPROM while maintaining pin compatibility. Samples are now available for customer evaluation, with production set to commence in the first quarter of 2025.

The latest motor controller models, HVC 5222D and HVC 5422D, come with expanded flash memory capacities of 32 KB and 64 KB, respectively, support currents up to 1 A for BLDC and stepper motors, and up to 2 A for DC motors. These models feature advanced motor-specific functions such as current programming for micro-stepping and integrated phase voltage comparators, virtual star-point, and current sense amplifier for both sensor-based and sensor-less motor control, meeting ISO26262 standards for ASIL applications.

The HVC family now includes nine fully integrated motor controllers with three to six motor outputs, delivering peak currents ranging from 500 mA to 2 A. Each device is equipped with a 32-bit Arm Cortex-M3 CPU core and offers options of 32 KB or 64 KB Flash Memory. With a 12-bit, 1-µs ADC for various measurements, these devices allow seamless integration of Hall and TMR sensors from TDK. Moreover, the HVC family devices feature a LIN transceiver and UART for communication, support auto-addressing via the Bus Shunt Method (BSM), and enable PWM control via the LIN pin, enhancing their adaptability across a range of applications. Certified to automotive standards AEC-Q100 for temperature Grade 1, all HVC devices ensure reliability, catering to automotive and industrial applications with power requirements of up to 30 W.

Glossary:

• AEC-Q100: Qualification standard for automotive applications.
• ADC: Analog to Digital Converter.
• BDC: Brushed DC motor.
• BLDC: Brushless DC motor.
• BSM: Bus Shunt Method for LIN auto addressing.
• CPU: Central Processing Unit.
• Grade 1: Ambient temperature 125 ºC, junction temperature 150 ºC.
• HVC: High Voltage Microcontrollers.
• LIN: Local Interconnect Network for automotive applications.
• QFN: Quad Flat No Lead package.
• UART: Universal Asynchronous Receiver / Transmitter.

Main applications include smart actuators in combustion and electric vehicles.

Key data:

• Motor terminals: 4
• Drive current: 1 A peak
• High- and low-side on-resistance: Total power path resistance < 3.2 Ohm
• Current measurement: Internal or with an external shunt
• Microcontroller: Arm Cortex-M3
• Flash memory: 32 KB (HVC 5222D), 64 KB (HVC 5422D)
• RAM: 4 KB SRAM
• EEPROM (Emulated): 2 KB
• NVR (Non-Volatile Register): 1 KB
• Package: 5x5 24-pin PQFN with exposed pad.