The LPC1500 MCUs are optimized for use with a wide range of brushless DC (BLDC) motors, permanent-magnet synchronous motors (PMSM), and AC induction motors (ACIM) commonly found in products such as large home appliances, HVAC, industrial pumps and generators, and more. They are also well suited for industrial applications requiring high-precision data sampling and real-time control, such as digital power and instrumentation.

“Today, many industrial designers face the challenge of creating designs with different types of motors, both sensored and sensorless,” said Ross Bannatyne, general manager for mass market microcontrollers at NXP Semiconductors.

“The LPC1500 series accelerates time to market with optimized MCUs, firmware, software development tools and easy-to-use solution kits for BLDC and PMSM motors.”

Based on the ARM Cortex-M3 processor, the LPC1500 microcontroller series is optimized to address a variety of motor control applications. Two 12-bit, 12-channel, 2 Msps ADCs and an on-chip quadrature encoder interface (QEI) enable highly accurate control of both sensored and sensorless motor combinations.

Four on-chip comparators enable fast-response over-current/voltage monitoring and protection; and four flexible SCTimer/PWM timers provide up to 28 PWM channels in a tightly coupled analog and timing subsystem, with minimal load on the CPU.

Fearture:

• Supports two motors:

• Two 12-bit, 12-channel, 2 Msps ADCs with 500 ns ADC conversion time

• QEI

• Advanced analog subsystem and high-precision timing, ideal for PID control loops

• Four SCTimer/PWM modules, with average PWM resolution <1ns

• Four fast comparators with 68 ns propagation delay

• Interconnected SCTimer/PWM, ADCs and comparators

• ADC triggered by SCTimer/PWM

• 72 MHz ARM Cortex-M3 processor

• Connectivity: CAN module for industrial connectivity and USB simplifies field upgrades

• Free FOC and BLDC motor control firmware

• GUI-based calibration/tuning tools