ISO7141

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

INA

INB

INC

OUTD

OUTA

OUTB

OUTC

IND

GND2

VCC2

0.1 µF

2 mm max

from VCC2

EN2

GND2

EN1

GND1

2 mm max

from VCC1

GND1

0.1 µF

VCC1

ISO7140

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

INA

INB

INC

IND

OUTA

OUTB

OUTC

OUTD

GND2

VCC2

0.1 µF

2 mm max

from VCC2

EN

GND2

NC

GND1

2 mm max

from VCC1

GND1

0.1 µF

VCC1

ISO7131

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

INA

INB

OUTC

NC

OUTA

OUTB

INC

NC

GND2

VCC2

0.1 µF

2 mm max

from VCC2

EN2

GND2

EN1

GND1

2 mm max

from VCC1

GND1

0.1 µF

VCC1

ISO7131CC, ISO7140CC, ISO7140FCC, ISO7141CC, ISO7141FCC

SLLSE83F – APRIL 2013 – REVISED JANUARY 2015

www.ti.com

Typical Applications (continued)

9.2.1.1 Design Requirements

Unlike optocouplers, which need external components to improve performance, provide bias, or limit current,

ISO71xx only needs two external bypass capacitors to operate.

9.2.1.2 Detailed Design Procedure

Figure 18. Typical ISO7131 Circuit Hook-up

Figure 19. Typical ISO7140 Circuit Hook-up

Figure 20. Typical ISO7141 Circuit Hook-up

22

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