11

LT1161

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-

tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.

Protected Quad 2A Industrial Switch with Isolated Inputs and Fault Output

1

µF

1

µF

0.1

µF

+

+

1

µF

1

µF

RFD16N05

RFD16N05

RFD16N05

RFD16N05

5.1k

18k

5.1k

5.1k

5.1k

5.1k

2k

4N28

NEC PS2501-4

MM74HC266A

LT1161

1161 TA02

0.015

Ω

24V

24V

FAULT

OUTPUT

5.6V

1N5994B

INPUTS

0.015

Ω

0.015

Ω

0.015

Ω

GND

T1

IN1

T2

IN2

T3

IN3

T4

IN4

GND

DS1

G1

DS2

G2

DS3

G3

DS4

G4

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

LOAD

#1

50

µF

50V

100k

100k

100k

100k

LOAD

#2

LOAD

#3

LOAD

#4

+

+

+

2N3904