1 Features
• Stepper Motor Driver
– SPI or H/W Interface with STEP/DIR pins
– Up to 1/256 Microstepping Indexer
• 4.5 V to 65 V Operating Supply Voltage Range
– Supports standard 24 V, 36 V and 48 V rails
• Low RDS(ON): 300 mΩ HS + LS at 24 V, 25°C
• High Current Capacity Per Bridge:
– 3 A full-scale, 2.1 A RMS
• DDW package pin-to-pin compatible with -
– DRV8452DDWR: 48 V, 5A full-scale
– DRV8462DDWR: 65 V, 5- 10A full-scale
• PWP package pin-to-pin compatible with -
– DRV8434/52: 48 V, 2.5-5A
– DRV8424/26: 33 V, 1.5-2.5A
• Integrated current sensing and regulation
– ±5% full-scale current accuracy
• Smart tune and mixed decay regulation options
• Silent step Decay mode for silent operation at
standstill and low speed
• Automatic Microstepping mode for step
frequency interpolation
• Customizable microstepping indexer table
• Auto-torque for load dependent current control
• Standstill Power Saving mode
• Supports 1.8-V, 3.3-V, 5.0-V logic inputs
• Low-current sleep mode (2.5 μA)
• Separate logic supply voltage (VCC)
• Protection and Diagnostic features
– Sensorless Stall Detection
– VM undervoltage lockout (UVLO)
– Open-load Detection (OL)
– Overcurrent protection (OCP)
– Thermal shutdown (OTSD)
– Fault condition output (nFAULT)
– Indexer zero position output (nHOME)

2 Applications
• Factory Automation, Stepper Drives and Robotics
• Textile Machines, Sewing machines
• Medical Imaging, Diagnostics and Equipment
• Stage Lighting
• ATMs, Currency Counters
• PLC, DCS & PAC
• Multifunction Printers
• 3D Printer
• Outdoor IP Camera

3 Description
The DRV8461 is a wide-voltage, high-power, highperformance
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.