DRV8461SPWPR datasheet(1/117 Pages) TI

部件名	DRV8461SPWPR

功能描述	DRV8461: 65 V, 3 A Stepper Motor Driver for High Efficiency and Noiseless Operation

PDF	117 Pages

Scroll/Zoom	100%

制造商	TI [Texas Instruments]

网页	http://www.ti.com

标志

1 / 117 page

DRV8461: 65 V, 3 A Stepper Motor Driver for High Efficiency and Noiseless Operation

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, 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.

Device Information

PART NUMBER

Interface

PACKAGE(

(1))

BODY SIZE

(NOM)

DRV8461DDWR

SPI or H/W

HTSSOP (44)

14 x 6.1 mm

DRV8461SPWPR

SPI

HTSSOP (28)

9.7 x 4.4 mm

DRV8461PWPR

H/W

HTSSOP (28)

9.7 x 4.4 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

STEP

nSLEEP

ENABLE

4.5 to 65 V

M

+

–

DRV8461

Protection

3 A

1/256 µ-step

DIR

nFAULT

Smart tune

SPI or H/W

nHOME

Auto Microstep

Auto-torque

Silent step Decay

Stall Detection

3 A

Custom Microstep

Simplified Schematic

DRV8461

SLOSE98 – DECEMBER 2022

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

类似零件编号 - DRV8461SPWPR

制造商	部件名	数据表	功能描述
Texas Instruments	DRV8462	4Mb / 118P	DRV8462 Stepper Motor Driver with Auto-torque, Silent Step Decay Mode and Automatic Microstepping AUGUST 2022
	DRV8462DDVR	4Mb / 118P	DRV8462 Stepper Motor Driver with Auto-torque, Silent Step Decay Mode and Automatic Microstepping AUGUST 2022
	DRV8462DDWR	4Mb / 118P	DRV8462 Stepper Motor Driver with Auto-torque, Silent Step Decay Mode and Automatic Microstepping AUGUST 2022

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