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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 communication 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 component 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 recommended junction temperature range is -40°C to 125°C, and the ambient temperature range is -40°C to 105°C.
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: 16kB MTP, Internal ROM with Embedded Motor Control Library and 4kB SRAM - Power Management: Deep Sleep - Communication 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 - Programmable Sourcing Current - Sourcing/Sinking Current: 300mA/800mA - Built-In UVLO Functions for All Channels - Matched Propagation Delays for All Channels
VQFN-32L 4x4 Package
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