MP6500

– 35V, 2.5A, STEP MOTOR DRIVER W/ INTERNAL CURRENT SENSE

MP6500 Rev. 1.01

www.MonolithicPower.com

4

12/27/2017

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© 2017 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

Parameter

Symbol

Condition

Min

Typ

Max

Units

Power Supply

Input supply voltage

4.5

24

35

V

Quiescent current

I

Q

VIN = 24V, nENBL = 0,

nSLEEP = 1, with no load

1.5

5

mA

I

SLEEP

VIN = 24V, nSLEEP = 0

1

µA

Internal MOSFETs

Output on resistance

R

HS

0.195

0.22

Ω

0.25

Ω

R

LS

0.17

0.21

Ω

0.25

Ω

Body diode forward voltage

I

1.1

V

Control Logic

Input logic low threshold

0.8

V

Input logic high threshold

2.1

V

Logic input current

20

µA

5

µA

Internal pull-down resistance

R

PD

500

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

3.4

4.5

V

Input OVP threshold

36

37.5

38.5

V

Input OVP hysteresis

∆V

OVP

1900

mV

Over-current trip level

Sinking

3.5

6

8.5

A

Sourcing

3.5

6

8.5

A

Over-current deglitch time

1

µs

Thermal shutdown

(5)

165

°C

Thermal shutdown hysteresis

(5)

∆T

TSD

15

°C

Current Regulation

Constant off time

20

23

26

µs

Peak current regulation level

0.95

1.0

1.05

A

ISET voltage

0.8

0.9

1

V

ISET current ratio

10

11.539

13

µA/A

Blanking time

(5)

t

BLANK

2

µs

Current trip accuracy

∆I

TRIP

-5

5

%

-9

9

%

-12

12

%

NOTE:

5) Guaranteed by design.