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. MICROCS PRODUCTS DIVISION

• 905 E. Walnut St., Garland, TX 75040 • (972) 272-3571 • Fax (972) 494-2281

www.micropac.com

5/22/02

Pg. 7 of 11

53111

Power MOSFET Optocoupler

PULSE GEN

(SEE NOTE 1)

50%

200

NOTES:

1. PULSE GENERATOR HAS THE FOLLOWING CHARACTERISTICS: OUTPUT IMPEDANCE = 50

AND t = t = 5.0 ns.

2. LOAD CAPACITANCE (C ) INCLUDES PROBE AND JIG CAPACITANCE.

r

f

GND

MONITOR

I

90%

ON

t

10%

OFF

MONITOR

NODE

+

PULSE

WIDTH

= 15 ms

V

-

4

3

GND

50%

5

6

= 25 pF

(SEE NOTE 2)

2

1

7

8

R

V

F

F

M

R

L

VO

C L

DD

F

I

F

I

O

V

t

L

Figure 6. Switching Test Circuit and Waveform.