DRV8824-Q1

SLVSCH0 – APRIL 2014

www.ti.com

Terminal Functions (continued)

EXTERNAL COMPONENTS

NAME

TERMINAL

I/O

DESCRIPTION

OR CONNECTIONS

OUTPUT

ISENA

6

IO

Bridge A ground / Isense

Connect to current sense resistor for bridge A.

ISENB

9

IO

Bridge B ground / Isense

Connect to current sense resistor for bridge B.

AOUT1

5

O

Bridge A output 1

Connect to bipolar stepper motor winding A.

Positive current is AOUT1

→ AOUT2

AOUT2

7

O

Bridge A output 2

BOUT1

10

O

Bridge B output 1

Connect to bipolar stepper motor winding B.

Positive current is BOUT1

→ BOUT2

BOUT2

8

O

Bridge B output 2

7 Specifications

7.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)

(1) (2)

VALUE

UNIT

VMx

Power supply voltage range

–0.3 to 47

V

Digital terminal voltage range

–0.5 to 7

V

VREF

Input voltage

–0.3 to 4

V

ISENSEx terminal voltage

–0.3 to 0.8

V

Peak motor drive output current, t < 1

μS

Internally limited

A

1.6

A

Continuous total power dissipation

See Thermal Information table

Operating virtual junction temperature range

–40 to 150

°C

(1)

Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating

conditions is not implied. Exposure to absolute maximum rated conditions for extended periods may affect device reliability.

(2)

All voltage values are with respect to network ground terminal.

(3)

Power dissipation and thermal limits must be observed.

7.2 Handling Ratings

MIN

MAX

UNIT

Storage temperature range

–60

150

°C

HBD (human body model), AEC-Q100 Classification H2

2000

V

CDM (charged device model), AEC-Q100 Classification C4B

750

7.3 Recommended Operating Conditions

MIN

NOM

MAX

UNIT

8.2

45

V

1

3.5

V

V3P3OUT load current

1

mA

(1)

(2)

Operational at VREF between 0 V and 1 V, but accuracy is degraded.

4

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