PACKAGE MECHANICAL DATA

DIL8 (Plastic)

8

1

5

4

E

D

F

b1

b

e3

e

Z

B

B1

I

L

a1

REF.

DIMENSIONS

Millimetres

Inches

Min. Typ. Max. Min. Typ. Max.

a1

0.70

0.027

B

1.39

1.65 0.055

0.065

B1

0.91

1.04 0.036

0.041

b

0.5

0.020

b1

0.38

0.50 0.015

0.020

D

9.80

0.385

E

8.8

0.346

e

2.54

0.100

e3

7.62

0.300

F

7.1

0.280

I

4.8

0.189

L

3.3

0.130

Z

0.44

1.60 0.017

0.063

Marking : ICC3-400

Weight : 0.59 g

R RESISTOR CALCULATION

The purpose of the resistor R is to limit the current

can be calculated as follow :

POWER LOSSES (For 20

µs - see note 1)

The following equations can be used to evaluate

power losses :

Rt = 0.110

Ω

Rd = 0.075

Ω

PROTECTION AGAINST PARASITIC SPIKES

The capacitor C2 in relation with R acts as a filter

and avoids the unexpected firing of the thyristor

due to parasitic spikes. Good results have been

obtained with 10nF capacitance.

Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsIbility for the consequences of

use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by

implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to

change without notice. This publication supersedes and replaces all information previously supplied.

STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written ap-

proval of STMicroelectronics.

The ST logo is a registered trademark of STMicroelectronics

© 1998 STMicroelectronics - Printed in Italy - All rights reserved.

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ICC03-400B2

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