Micropac Industries cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement.

Micropac reserves the right to make changes at any time in order to improve design and to supply the best product possible.

MICROPAC INDUSTRIES, INC. MICROCIRCUITS DIVISION • 905 E. Walnut St., Garland, TX 75040 • (972) 272-3571 • Fax (972) 494-2281

www.micropac.com

05/16/2002

Pg. 3 of 4

53262

Short Circuit Protected Solid State Relay

___________________________________________________________________________________________

Figure 1 – Block Diagram (Low-side Switch shown)

R

S

+V

C

+DC SUPPLY

R

LOAD

GND

OUTPUT GND

1

4

23

Figure 2 – Switching Test

PULSE

GENERATOR

50%

100

MONITOR

(100mV/mA)

90%

ON

10%

OFF

MONITOR

2

50%

3

= 25 pF

(INCLUDES PROBE AND

FIXTURE CAPACITANCE)

1

4

R

V

L

VO

CL

LOAD

F

I

F

I

O

V

t

Z =50

O

F

t = t = 10ns

R

t

90%

t

R

t

F

10%