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Micronas 8bit MCU incorporates power transistors

Posted: 30 Oct 2012 ?? ?Print Version ?Bookmark and Share

Keywords:8bit controller? BLDC motors? MOSFETs?

The new Micronas HVC2480B-8bit controller for DC motors has integrated power transistors. Because of its small form factor, it is the ideal solution for the control of BDC/BLDC motors with tight space requirements.

The controller is currently available at distributor Rutronik. The chip is a high-voltage controller for use in automotive, industrial, medical, consumer and instrumentation applications. Reducing the number of external components to a minimum, the product s flexible peripherals provide all means to control brush-type and brushless DC (BLDC) motors either directly with the 3x300mA fully integrated half-bridges or by driving external MOSFETs with six enhanced PWM outputs. Beside timers/counters, interrupt controller, multi-channel A/D converter and enhanced PWMs, the HVC2480B contains voltage regulators for direct connection to a 9-18V power supply, a LIN transceiver, UART, PWM and SPI host interfaces.

Various integrated digital and analogue circuit units such as comparators with virtual star point reference or embedded amplifier allow users to control brushless motors (BLDC and PMSM) by different means like six-step commutation with sensor feedback or sensorless control with BEMF evaluation up to space vector control. The controller has an enhanced 8051 core with 32kB flash, 1.75kB RAM and 512 EEPROM as well as built-in safety features like protection logic. Its temperature range is from -40C to +150C junction temperature.

- Julien Happich
??EE Times Europe

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