DRV8461 Series

65-V, 3-A dual H-bridge stepper motor driver with smart tune, stall detect and auto-torque

Catalog

65-V, 3-A dual H-bridge stepper motor driver with smart tune, stall detect and auto-torque

Part	Function	Mounting Type	Supplier Device Package	Output Configuration	Current - Output	Applications	Voltage - Supply [Min]	Voltage - Supply [Max]	Operating Temperature [Min]	Operating Temperature [Max]	Technology	Motor Type - Stepper	Package / Case [custom]	Package / Case	Package / Case [custom]	Step Resolution [Max]	Step Resolution [Min]	Voltage - Load [Min]	Voltage - Load [Max]	Motor Type - AC, DC
Texas Instruments DRV8461PWPR	Driver - Fully Integrated Control and Power Stage	Surface Mount	28-HTSSOP	Half Bridge (2)	3 A	Printer	4.5 V	65 V	-40 °C	125 °C	NMOS	Bipolar	4.4 mm	28-PowerTSSOP	0.173 "	1	0.00390625	4.5 V	65 V	Brushed DC Brushless DC (BLDC)

Catalog

65-V, 3-A dual H-bridge stepper motor driver with smart tune, stall detect and auto-torque

Key Features

• Stepper Motor DriverSPI or H/W Interface with STEP/DIR pinsUp to 1/256 Microstepping Indexer4.5 V to 65 V Operating Supply Voltage RangeSupports standard 24 V, 36 V and 48 V railsLow R DS(ON): 300 mΩ HS + LS at 24 V, 25°CHigh Current Capacity Per Bridge:3 A full-scale, 2.1 A RMSDDW package pin-to-pin compatible with -DRV8452DDWR: 55 V, 5 A full-scaleDRV8462DDWR: 65 V, 5 A full-scalePWP package pin-to-pin compatible with -DRV8434/52: 48/55 V, 2.5/5 ADRV8424/26: 33 V, 1.5/2.5 AIntegrated current sensing and regulation± 6% full-scale current accuracySmart tune and mixed decay regulation optionsSilent step Decay mode for silent operation at standstill and low speedAutomatic Microstepping mode for step frequency interpolationCustomizable microstepping indexer tableAuto-torque for load dependent current controlStandstill Power Saving modeSupports 1.8-V, 3.3-V, 5.0-V logic inputsLow-current sleep mode (2.5 µA)Separate logic supply voltage ( VCC)Protection and Diagnostic featuresSensorless Stall DetectionVM undervoltage lockout (UVLO)Open-load Detection (OL)Overcurrent protection (OCP)Thermal shutdown (OTSD)Fault condition output (nFAULT)Indexer zero position output ( nHOME)Stepper Motor DriverSPI or H/W Interface with STEP/DIR pinsUp to 1/256 Microstepping Indexer4.5 V to 65 V Operating Supply Voltage RangeSupports standard 24 V, 36 V and 48 V railsLow R DS(ON): 300 mΩ HS + LS at 24 V, 25°CHigh Current Capacity Per Bridge:3 A full-scale, 2.1 A RMSDDW package pin-to-pin compatible with -DRV8452DDWR: 55 V, 5 A full-scaleDRV8462DDWR: 65 V, 5 A full-scalePWP package pin-to-pin compatible with -DRV8434/52: 48/55 V, 2.5/5 ADRV8424/26: 33 V, 1.5/2.5 AIntegrated current sensing and regulation± 6% full-scale current accuracySmart tune and mixed decay regulation optionsSilent step Decay mode for silent operation at standstill and low speedAutomatic Microstepping mode for step frequency interpolationCustomizable microstepping indexer tableAuto-torque for load dependent current controlStandstill Power Saving modeSupports 1.8-V, 3.3-V, 5.0-V logic inputsLow-current sleep mode (2.5 µA)Separate logic supply voltage ( VCC)Protection and Diagnostic featuresSensorless Stall DetectionVM undervoltage lockout (UVLO)Open-load Detection (OL)Overcurrent protection (OCP)Thermal shutdown (OTSD)Fault condition output (nFAULT)Indexer zero position output ( nHOME)

Description

The DRV8461 is a wide-voltage, high-power, high-performance stepper motor driver. The device supports up to 65-V supply voltage, and integrated MOSFETs with 300 mΩ HS + LS on-resistance allow up to 3-A current. The auto-torque feature boosts efficiency by adjusting the coil current according to load torque. Standstill power saving mode reduces power loss during motor holding condition. Silent step decay mode delivers noiseless operation at low speeds and standstill. The internal current sense eliminates the need for sense resistors, saving PCB area and system cost. Built-in indexer supports up to 1/256 microstepping, and the automatic microstepping mode interpolates the input STEP signal to reduce overhead on the controller. Sensorless stall detection eliminates end stops from the system. The device supports other protection and diagnostic features for robust and reliable operation. The DRV8461 requires minimal tuning to configure the advanced features. The DRV8461 supports higher power density compared to external FET drivers, with a smaller PCB area. High energy efficiency with precise, noiseless operation makes the DRV8461 an ideal choice for high-performance stepper systems. The DRV8461 is a wide-voltage, high-power, high-performance stepper motor driver. The device supports up to 65-V supply voltage, and integrated MOSFETs with 300 mΩ HS + LS on-resistance allow up to 3-A current. The auto-torque feature boosts efficiency by adjusting the coil current according to load torque. Standstill power saving mode reduces power loss during motor holding condition. Silent step decay mode delivers noiseless operation at low speeds and standstill. The internal current sense eliminates the need for sense resistors, saving PCB area and system cost. Built-in indexer supports up to 1/256 microstepping, and the automatic microstepping mode interpolates the input STEP signal to reduce overhead on the controller. Sensorless stall detection eliminates end stops from the system. The device supports other protection and diagnostic features for robust and reliable operation. The DRV8461 requires minimal tuning to configure the advanced features. The DRV8461 supports higher power density compared to external FET drivers, with a smaller PCB area. High energy efficiency with precise, noiseless operation makes the DRV8461 an ideal choice for high-performance stepper systems.