RX62T group underlines Renesas’ contribution to further miniaturization and lower costs in high-level motor and inverter control systems, increasing efficiency and reducing noise.
Nuremberg, embedded world 2nd March 2010 – At Embedded World in Nuremberg, Renesas Technology Europe today announced the release of the new RX62T, the third family of products in its broad RX Platform series of MCUs. The RX Platform is built around the new RX CPU and comprises the next generation of MCUs which integrate the functions of Renesas Technology’s existing 16-bit and 32-bit MCU products. The new RX62T Group comprises 40 individual products. In addition to the high speed, high performance, and low power of the 32-bit RX600 Series, the new RX62T group features improved inverter control timers and analog functions required for today‘s inverter control applications.
Furthermore, these microcontrollers help to reduce system costs and power consumption in various applications, such as air conditioners, washing machines, solar inverter solutions, lighting control and PFCs. These typically require increasing levels of functionality and environmental friendliness.
The RX62T microcontrollers include a multifunction timer pulse unit 3 (MTU3), which can drive up to two 3-phase motors. They also integrate a newly-developed 16-bit general-purpose PWM timer (GPT) that can drive a single three-phase motor. As a result, the RX62T products can drive up to three 3-phase motors at the same time with a single chip. The timer uses the same clock at 100 MHz, which is the CPU’s maximum operating frequency. This enables it to achieve a wide range of width measurements for PWM output waveforms with a 10 ns resolution.
Improved analog functions for system cost reductions and improved ease of use in motor vector control applications have also been implemented in the new RX62T family. It features two 12-bit A/D converter units and one 10-bit A/D converter unit, and can capture analog input values from up to 20 channels at a minimum conversion time of 1 ms.
The two 12-bit A/D converters can easily be used for sensorless vector control methods, like three-shunt or single-shunt current detection. As each of the A/D units can be triggered by timer units and sample three phases in parallel, an independent motor control for two separate motors can be applied.