RT7079 Datasheet | Richtek

Description Features The RT7079 is an application specific IC designed for PMSM/BLDC motor applications. This two-in-one ASIC integrates several functional circuits, namely a 3-phase motor controller, a 3-phase gate driver, three bootstrap diodes, a 5V LDO regulator and a buck converter. The RT7079 embeds the ARM 32-bit Cortex-M0 core with peripheral circuits to perform the sensorless with field oriented control (FOC). In addition, several system level peripheral functions, such as ADC, DAC, munication interface, SVPWM, watchdog timer, current sensing, undervoltage-lockout (UVLO), short circuit protection (SCP) and locked-rotor protection are integrated so as to reduce ponent count, PCB size and system cost. Furthermore, the RT7079 drives external N-Channel MOSFETs in three half-bridge configuration with a built-in bootstrap network up to 58V. A dead time control is builtin to prevent shoot-through of the external N-Channel MOSFETs. The RT7079 is available in WQFN-48L 7x7 package. Ordering Information - - Integrated 3-Phase PMSM/BLDC Controller, Gate Driver, Bootstrap Diodes, 5V LDO Regulator and Buck Converter - Input Voltage Range : 8V to 58V - Sensorless, Sine-Wave Field Oriented Control (FOC) - Protections : SCP, UVLO and Locked-Rotor Protection - PMSM/BLDC Motor Controller  ARM 32-bit Cortex-M0 CPU, Frequency 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  10-Channel 10-Bit ADC  1-Channel Current Type 6-Bit DAC  1-Channel Voltage Type 8-Bit DAC - Gate Driver  Floating Channel Designed for Bootstrap Operation  Sourcing/Sinking Current : 70m A/500m A - WQFN-48L 7x7 Package Programmed Firmware Code Applications Package Type QW : WQFN-48L 7x7 (W-Type) (Exposed Pad-Option 1) - Fan Applications : Exhaust Fan, Pedestal Fan, Ventilation Fan etc. Lead Plating System - Water Pump G : Green (Halogen Free and Pb Free) -...