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Microchip MCUs extend motor life in industrial apps

Posted: 26 Jan 2004 ?? ?Print Version ?Bookmark and Share

Keywords:microchip technology? flash microcontroller? picmicro? pic18f4331/4431? pic18f2331/2431?

Microchip Technology Inc. has announced a family of 8-bit Flash microcontrollers (MCUs) with advanced motor control peripherals that deliver better efficiency, quieter operation, greater range and extend the life of motors in automotive, industrial, appliance and consumer applications.

The 40-pin PIC18F4331/4431 and 28-pin PIC18F2331/2431 microcontrollers (MCUs) provide a complete solution for precise and energy-efficient operation in sophisticated motor control applications through advanced analog and digital feedback, and the new three-phase complimentary PWM control system.

The PIC18Fxx31 family has three modules designed for advanced motion and power control applications. The power control module has a three-phase PWM structure, the motion feedback module includes a quadrature encoder interface, and the third module consists of a high-speed ADC, which operates at 200KSps and can be synchronized with the PWM. Together, the modules eliminate the need for any external motor control components, such as a high-speed converter and a resonator.

The product also includes up to eight PWM channels with 14-bit resolution, center alignment, programmable dead-time and two external fault-protection inputs, two Capture/Compare/PWM modules, an Internal RC oscillator with eight selectable frequencies ranging from 8MHz to 31.25KHz, four general-purpose Timers, a clock monitor for fail-safe operation, an Enhanced USART supporting RS485, RS232 and the LIN protocol, on-board high-endurance data EEPROM, up to 10MIPS performance at 40MHz, a 16-level Programmable Low Voltage Detection module and nanoWatt Technology features that provide enhanced power management capabilities.

The PIC18F4331/4431 are available in 40-pin DIP and 44-pin TQFP and QFN packages, while the PIC18F2331/2431 are offered in 28-pin SDIP, SOIC and QFN packages.

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