The RT7100 is an application-specific processor for PMSM/BLDC motor control applications. It integrates ARM 32-bit Cortex-M0 core and peripheral circuits to perform FOC and Sensorless motor control. The IC has integrated various system level peripheral functions, such as ADC, DAC, communication interface, SVPWM, watchdog timer, current sensing, undervoltage-lockout (UVLO), over-current protection (OCP) and motor lock protection so as to reduce component count, board space and system cost. By utilizing these features, the RT7100 provides a unique selection in a wide-range of motor drive applications. The RT7100 is available in a TSSOP-28 package.


  • PMSM/BLDC Motor
  • Pedestal Fan
  • Ceiling Fan
  • Air Conditioner Indoor/Outdoor Fan
  • Pump
Key Spec.
Status Active
Number of Phases 3
System Frequency, fSCLK (MHz) 60
ADC resolution (bits) 10
MCU supply voltage, V5V, Min (V) 4.5
MCU supply voltage, V5V, Max (V) 5.5
Features OCP;PWM Short Protection;SCP
Package Type TSSOP-28
  • Sensorless, Sinewave Field Oriented Control
  • ARM 32-bit Cortex-M0 CPU, Frequency up to 60MHz
  • Memories Size : 16KB MTP, Internal ROM with Embedded Motor Control Library and 4KB SRAM
  • Operating Voltage Range : 4.5V to 5.5V
  • Power Management : Normal or Deep Sleep
  • Programming Soft-Start
  • Communication Interface : I2C and UART
  • 10-Channel 10-Bit ADC
  • 1-Channel Current Type 6-Bit DAC
  • 1-Channel Voltage Type 8-Bit DAC
  • Protections : OCP, UVLO and Motor Lock Protection
  • RT7100GC with Firmware Code UXYYY Certified by UL for IEC-60730-1 Class B Compliance with Recognized Marking :
  • UL Certified No. E478780 (UL60730)