NXP Semiconductors MCU Cortex-M3 ARM de control de motores LPC1500
La serie de MCU Cortex-M3 ARM de control de motores LPC1500 de NXP está optimizada para control de motores rápido, sencillo y de alta precisión de motores CC sin escobillas, con y sin sensores (BLDC), y motores magnéticos permanentes (PMSM). LPC1500 es ideal para grandes electrodomésticos, HVAC, control de ascensores y escaleras mecánicas y control de bombas y generadores industriales. LPC1500 admite dos motores a través de 2 ADC de 12 bits, 12 canales y 2 Msps y una interfaz de codificación de cuadratura. La generación PWM precisa permite un accionamiento eficiente del motor. Los subsistemas analógicos avanzados y la temporización resultan ideales para bucles de control PID. El módulo CAN simplifica la conectividad industrial y la conexión USB facilita las actualizaciones en campo. Se ofrece firmware de control de motor FOC gratuito, y las herramientas basada en GUI agilizan cualquier ajuste y calibración repetitivo.
Each LPC1500 MCU is equipped with a PWM/timer subsystem that includes a total of four state-configurable timers (SCTimer/PWMs), a peripheral function exclusive to NXP that makes it easy to configure the advanced PWM and timing functions necessary for motion control. The on-chip QEI is ideal for applications that use sensored motion control.
LPC1500 MCUs feature two ADCs, each supporting a resolution of up to 12 bits and a fast conversion rate of up to 2 MHz. The ADCs are supported by a 12-bit DAC and four analog comparators. Sequences of A-to-D conversions can be triggered by multiple sources, including internal connections to other on-chip peripherals such as the SCTimer/PWM and analog comparator outputs. A temperature sensor completes this sophisticated analog subsystem.
The DMA controller, which has 18 channels and 20 programmable input triggers, services memory and peripheral resources.
Putting special functions in ROM helps improve time-to-market, reduce code size, and simplify development. Pre-loaded into the ROM are a boot loader, In-System Programming (ISP) and In-Application Programming (IAP) support for Flash (with an IAP erase command), and for EEPROM. There are ROM-based USB drivers and USB-compliant stacks for HID, CDC, and MS classes, as well as C_CAN drivers. Flash updates via USB and C_CAN are also supported. There are ROM-based drivers for USART, I2C, and DMA ROM-based power profiles configure power consumption, PLL settings, and power-saving modes.
To simplify the development of motion-control applications, the LPC1500 is equipped with “Quick Drive” firmware, which demonstrates sensored and sensorless motion-control functions. The firmware uses a fast Field Oriented Control (FOC) algorithm and a PI loop controller to maintain speed and torque, and minimize the code footprint.
Características
- 72-MHz ARM Cortex-M3
- Operating voltage: 2.4V to 3.6V
- Up to 256kB Flash
- Up to 36kB SRAM
- 4kB EEPROM with EEPROM ROM drivers
- Serial interfaces: C_CAN controller, FS USB with PHY, three USART, one I2C, two SPI
- State-configurable timer and PWM block (SCTimer/PWM) for advanced control functions
- Two 12-bit ADCs, one 12-bit DAC, and four comparators
- 18-channel DMA engine
- Quadrature Encoder Interface (QEI)
- ROM API support
- Up to 78 GPIO
- Extended temp range of -40 to +105 °C
- Compact LQFP package
Aplicaciones
- Motion drives
- Motor control
- Digital power supplies
- Solar inverters
- Home appliances
- Building and factory automation
- Industrial and medical
Vídeos
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