The RT7083 is an application specific IC designed for PMSM/BLDC motor applications. This two-in-one ASIC integrates several functional circuits, including a 3-phase motor controller, a 3-phase gate driver, three bootstrap diodes, a 5V LDO and a buck converter.
The RT7083 embeds the ARM 32-bit Cortex-M0 core with peripheral circuits to perform sensorless Field Oriented Control (FOC). In addition, this ASIC provides several system level peripheral functions, in which ADC, DAC, communication interface, SVPWM, watchdog timer, current sensing, undervoltage-lockout (UVLO), short circuit protection (SCP) and locked-rotor protection are integrated so as to reduce component count, PCB size and system cost.
Moreover, the RT7083 drives external N-Channel MOSFETs in three half-bridge configuration with built-in bootstrap circuitry up to 58V. A dead time control is designed to prevent shoot-through of the external N-Channel MOSFETs.
The RT7083 is available in WQFN-48L 6x6 package. The recommended junction temperature range is -40°C to 125°C, and the ambient temperature range is -40°C to 105°C.
Applications
- Fan Applications : Exhaust Fan, Pedestal Fan, Ventilation Fan, etc.
- Water Pump
- Vacuum Cleaner