RT7082A2M Datasheet | Richtek

Description The RT7082A2M 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 an LDO for gate driver supply. The RT7082A2M 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, including filters at the ADC input, a munication interface, a thermal sensor, adjustment of sourcing current for the gate driver, adjustment of supply voltage for the gate driver, short circuit protection (SCP), and locked-rotor protection, to reduce ponent count, PCB size, and system cost. Moreover, the RT7082A2M drives external N-Channel MOSFETs in a three half-bridge configuration with built-in bootstrap circuitry up to 30V. The RT7082A2M is available in a VQFN-32L 4x4 package. The remended junction temperature range is - 40C to 125C, and the ambient temperature range is - 40C to 105C. 2 Applications - Pedestal Fan - Ventilation Fan - Water Pump - Vacuum Cleaner - Server Fan 3 Features - Integrates 3-Phase PMSM/BLDC Controller, Gate Driver, Bootstrap Diodes, 5V LDO, and Gate Driver LDO - Input Voltage Range: 6.5V to 30V - Sensorless, Sine-Wave Field Oriented Control (FOC) - Integrates Filters at ADC Input - Protections: SCP, UVLO, Locked-Rotor, and Thermal Detection - 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: Deep Sleep - munication Interface: I2C and UART - Configurable ADC Gain: x1, x4, and x8 - 6-Channel 12-Bit ADC - AD0 to AD3 for Differential Mode Current Sense - AD6 to AD9 for System Application - 1-Channel Voltage Type 8-bit DAC - Gate Driver - Floating Channel Designed for Bootstrap Operation - Programmable Supply Voltage -...