2

Current flow through the two outputs COIL+ and COIL-

is controlled by the combined settings of ENABLE1,

ENABLE2 and DIRECTION (Table 1). The outputs will be

active only when ENABLE1 is low and ENABLE2 is high.

When DIRECTION is high, current flows out of COIL+

and into COIL-. When DIRECTION is low, current flows

out of COIL- and into COIL+. For any other combination

of ENABLE settings, the outputs are off.

Table 1. Logical Control Diagram

ENABLE1 ENABLE2

DIRECTION

COIL+

COIL-

Low

High

High

High

Low

Low

High

Low

Low

High

High

X

X

OFF

OFF

X

Low

X

OFF

OFF

Motor Direction Control

Electrical Characteristics: 5.5V

≤ V

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Package Lead Description

PACKAGE LEAD#

LEAD SYMBOL

FUNCTION

Application Hints

15 Lead

7 Lead

7 Lead

Power SIP

TO-220

2

1

1

ENABLE1

Enables output when held low and ENABLE 2 = High

4

2

2

DIRECTION

Determines the direction of current flow through COIL+ and

COIL- as long as ENABLE1 = Low and ENABLE2 = High

6

3

3

COIL+

Positive Output of H bridge to coil

8

4

4

Gnd

Ground connection

12

5

5

Supply voltage for IC

10

6

6

COIL-

Negative Output of H bridge to coil

14

7

7

ENABLE2

Enables output when held high and ENABLE 1 = Low

s

Output Stage

Quiescent Current

10

mA

ENABLE1 = DIRECTION = High

ENABLE2 = Low

Output Saturation Voltage

3.2

V

2.6

V

Output Leakage Current

20

µA

Current Limit

3.0

A

s

Logic Control Functions

High Level Input Voltage

2.0

V

Low Level Input Voltage

0.8

V

High Level Input Current

10

µA

Low Level Input Current

-250

µA

Turn on Delay

50

µs

Guaranteed by design

5

Turn off Delay

50

µs

Guaranteed by design

5

s

Fault Protection Functions

Overvoltage Shutdown

18.0

21.5

V