MP6504

8V to 32V, 2A, Stepper Motor Driver

with Integrated MOSFETs

MP6504 Rev. 1.0

www.MonolithicPower.com

1

5/17/2017

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2017 MPS. All Rights Reserved.

DESCRIPTION

The MP6504 is a stepper motor driver with a

built-in microstepping translator. The MP6504

operates from a supply voltage of up to 32V

and can deliver a motor current of up to 2A. The

MP6504 can operate a bipolar stepper motor in

full-, half-, quarter-, and eighth-step modes.

The MP6504 has a fixed 3.3V reference output,

which allows it to operate without a separate

logic power supply.

Full protection features include over-current

protection (OCP), input over-voltage protection

(OVP), under-voltage lockout (UVLO), and

thermal shutdown.

The

MP6504

is

available

in

a

QFN-28

(4mmx5mm) package with an exposed thermal

pad.

FEATURES

 Wide 8V to 32V Input Voltage Range

 Two Internal Full-Bridge Drivers

 Low On Resistance (HS: 220mΩ; LS:

220m

Ω)

 No Control Power Supply Required

 Simple Logic Interface

 Compatible with 3.3V and 5V Logic

 Full-, Half-, Quarter-, and Eighth-Step

Functionality

 2A Maximum Output Current

 Adjustable Mixed Decay Ratio

 Over-Current Protection (OCP)

 Input

Over-Voltage

Protection

(OVP)

Function

 Thermal Shutdown and Under-Voltage

Lockout (UVLO) Protection

 Fault Indication Output

 Available

in

a

QFN-28

(4mmx5mm)

Package

APPLICATIONS

 Bipolar Stepper Motors

 Printers

All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For

MPS green status, please visit the MPS website under Quality Assurance.

“MPS” and “The Future of Analog IC Technology” are registered trademarks of

Monolithic Power Systems, Inc.

TYPICAL APPLICATION

Motor

CPA

CPB

VCP

VIN

AOUT1

AOUT2

BOUT1

BOUT2

ROSC

VREF

MDS

STEP

DIR

MS1

MS2

nENBL

nSLEEP

3P3VOUT

nFAULT

nHOME

µC

SENA

3.3V

VIN

MP6504

SENB

nRSET

0.47µF

200kΩ

VG

1µF

1µF

100nF

SENA

SENB

Exposed

GND Pad

GND