MP6500

35V, 2.5A, Stepper Motor Driver

MP6500 Rev. 1.01

www.MonolithicPower.com

1

12/27/2017

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© 2017 MPS. All Rights Reserved.

DESCRIPTION

The MP6500 is a stepper motor driver with a

built-in

translator

and

current

regulation.

Current sensing is internal and requires no

external sense resistors. High integration and a

small package size make the MP6500 a space-

saving and cost-effective solution for bipolar

stepper motor drives.

The MP6500 operates from a supply voltage of

up to 35V and can deliver motor currents up to

2.5A (depending on PCB design and thermal

conditions). The MP6500 can operate a bipolar

stepper motor in full-, half-, quarter-, or eighth-

step modes. Internal safety features include

over-current

protection

(OCP),

input

over-

voltage protection (OVP), under-voltage lockout

(UVLO), and thermal shutdown.

The

MP6500

is

available

in

QFN-24

(5mmx5mm) and TSSOP-28 EP packages.

FEATURES

 Wide 4.5V to 35V Input Voltage Range

 Two Internal Full-Bridge Drivers

 Internal Current Sensing and Regulation

 Low On Resistance (HS: 195mΩ, LS:

170m

Ω)

 No Control Power Supply Required

 Simple Logic Interface

 3.3V and 5V Compatible Logic Supply

 Step Modes from Full-Step to Eighth-Step

 2.5A Output Current

 Automatic Current Decay

 Over-Current Protection (OCP)

 Input Over-Voltage Protection (OVP)

 Thermal Shutdown and Under-Voltage

Lockout (UVLO) Protection

 Fault Indication Output

 Available in QFN-24 (5mmx5mm) and

Thermally Enhanced TSSOP-28 Packages

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

Step

Motor

CPA

CPB

VCP

VIN

AOUT1

AOUT2

BOUT1

BOUT2

ROSC

ISET

STEP

DIR

nENBL

MS1

MS2

nSLEEP

nFAULT

µC

VIN

MP6500

VG

220

nF

1µF

100nF

GND