MP6504

– 32V, 2A, MICROSTEPPING MOTOR DRIVER W/ INTEGRATED MOSFETS

MP6504 Rev. 1.0

www.MonolithicPower.com

4

5/17/2017

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

© 2017 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

Parameter

Symbol

Condition

Min

Typ

Max

Units

Power Supply

Input supply voltage

8

24

32

V

Quiescent current

I

Q

VIN = 24V, nENBL = 0,

nSLEEP = 1, with no load

7

10

mA

I

SLEEP

VIN = 24V, nSLEEP = 0

1

µA

Voltage Regulator

3P3VOUT reference output

3.2

3.3

3.45

V

Internal MOSFETs

Output on resistance

R

HS

VIN = 24V, I

C

0.22

0.35

Ω

VIN = 24V, I

C

0.25

Ω

R

LS

VIN = 24V, I

C

0.22

0.35

Ω

VIN = 24V, I

C

0.25

Ω

Body diode forward voltage

I

1.3

V

Control Logic

Input logic low threshold

All logic pins

0.6

V

Input logic high threshold

All logic pins

2

V

Logic input current

-25

25

µA

-8

8

µA

Internal pull-down resistance

R

PD

All logic pins

530

k

Ω

Home, nFault Outputs (Open-Drain Outputs)

Output low voltage

0.5

V

Output high leakage current

1

µA

Protection Circuit

UVLO rising threshold

V

IN_RISE

6.5

7

7.7

V

UVLO hysteresis

(5)

V

HYS

970

mV

Input OVP threshold

36

37.9

40

V

Input OVP hysteresis

∆V

OVP

600

mV

Over-current trip level

Sinking

3.5

6.75

10

A

Sourcing

3.5

6.75

10

A

Over-current deglitch time

(5)

1

µs

Thermal shutdown

(5)

165

°C

Thermal shutdown hysteresis

(5)

∆T

TSD

30

°C

Current Control

Constant off time

20

30

40

µs

Blanking time

t

BLANK

2

µs

Crossover dead time

HS off to LS on, or LS off to HS

on

400

ns

VREF input current

3.5

µA

SENx trip voltage

test mode)

600

645

700

mV

Current trip accuracy

∆I

TRIP

-5

5

%

-10

10

%

-15

15

%

-20

20

%

Charge pump frequency

525

kHz

NOTE:

5) Not tested in production.