PIN FUNCTIONS (refer to the block diagram)

MW. 15

Po werSO

Name

Fun ction

1;15

2;19

Sense A; Sense B

Between this pin and ground is connected the sense resistor to

control the current of the load.

2;3

4;5

Out 1; Out 2

Outputs of the Bridge A; the current that flows through the load

connected between these two pins is monitored at pin 1.

46

Supply Voltage for the Power Output Stages.

A non-inductive 100nF capacitor must be connected between this

pin and ground.

5;7

7;9

Input 1; Input 2

TTL Compatible Inputs of the Bridge A.

6;11

8;14

Enable A; Enable B

TTL Compatible Enable Input: the L state disables the bridge A

(enable A) and/or the bridge B (enable B).

8

1,10,11,20

GND

Ground.

9

12

VSS

Supply Voltage for the Logic Blocks. A100nF capacitor must be

connected between this pin and ground.

10; 12

13;15

Input 3; Input 4

TTL Compatible Inputs of the Bridge B.

13; 14

16;17

Out 3; Out 4

Outputs of the Bridge B. The current that flows through the load

connected between these two pins is monitored at pin 15.

–

3;18

N.C.

Not Connected

°C; unless otherwise specified)

Symbol

Parameter

Test Co ndi tions

Min .

Typ .

Max.

Uni t

Supply Voltage (pin 4)

Operative Condition

46

V

Logic Supply Voltage (pin 9)

4.5

5

7

V

Quiescent Supply Current (pin 4)

13

50

22

70

mA

mA

4

mA

24

7

36

12

mA

mA

6

mA

Input Low Voltage

(pins 5, 7, 10, 12)

–0.3

1.5

V

Input High Voltage

(pins 5, 7, 10, 12)

2.3

VSS

V

Low Voltage Input Current

(pins 5, 7, 10, 12)

–10

µA

High Voltage Input Current

(pins 5, 7, 10, 12)

Vi = H

30

100

µA

Enable Low Voltage (pins 6, 11)

–0.3

1.5

V

Enable High Voltage (pins 6, 11)

2.3

V

Low Voltage Enable Current

(pins 6, 11)

–10

µA

High Voltage Enable Current

(pins 6, 11)

30

100

µA

0.95

1.35

2

1.7

2.7

V

V

(5)

(5)

0.85

1.2

1.7

1.6

2.3

V

V

Total Drop

(5)

(5)

1.80

3.2

4.9

V

V

Sensing Voltage (pins 1, 15)

–1 (1)

2

V

L298

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