RT7081 Datasheet | Richtek

Description The RT7081 is a two- in-one application specific IC which consists of a 3 phase motor controller, a gate driver, three bootstrap diodes, a 5V LDO regulator and RC filters for current sense. The RT7081 integrates the ARM 32-bit Cortex-M0 core with peripheral circuits to perform field oriented control (FOC) and sensor-less motor control. In additions, system level peripheral functions, such as ADC, DAC, munication interface, SVPWM, watchdog timer, current sensing, under voltage-lockout (UVLO), short circuit protection (SCP), thermal detection and locked-rotor protection are integrated so as to reduce ponent count, PCB size and total BOM cost. Furthermore, the RT7081 drives external N-Channel MOSFETs or IGBTs in a half-bridge configuration with a building bootstrap network up to 600V. A dead time control is built-in to prevent shoot-through of the external N-Channel MOSFETs. The RT7081 is available in a WQFN-37L 7x7 package. Ordering Information - Programmed Firmware Code Package Type QW : WQFN-37L 7x7 (W-Type) Lead Plating System G : Green (Halogen Free and Pb Free) Note : Richtek products are : - Ro HS pliant and patible with the current requirements of IPC/JEDEC J-STD-020. - Suitable for use in Sn Pb or Pb-free soldering processes. - Features - Integrated 3 Phase PMSM/BLDC Controller, Gate Driver, Bootstrap Diodes and 5V LDO Regulator - Integrated Filters at ADC Input - Sensor-Less, Sine-Wave Field Oriented Control (FOC) - Protections : Over-Current, UVLO, Locked-Rotor and Thermal Detection - PMSM/BLDC Motor Controller : - ARM 32-bit Cortex-M0 CPU, Up to 60MHz - Memories Size : 16k B MTP, Internal ROM with Embedded Motor Control Library and 4k B SRAM - Power Management : Normal or Deep Sleep - munication Interface : I2C and UART - Support Two-Wire programming - 10-Channel 10-bit ADC - 1-Channel Voltage Type 8-bit DAC - Gate Driver : - Floating Channel Designed for Bootstrap Operation up to 600V - Sourcing/Sinking Current: 300m A/600m A - Built in UVLO...