L9963E datasheet(172/184 Pages) STMICROELECTRONICS

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19. For Symbols, Recommended Values and Tolerances see Table below:

Symbol

Definition

Notes

aaa

The tolerance that controls the position of the terminal

pattern with respect to Datum A and B. The center

of the tolerance zone for each terminal is defined by

basic dimension "e" as related to Datum A and B.

For flange-molded packages, this tolerance also

applies for basic dimensions D1 and E1. For

packages tooled with intentional terminal tip

protrusions, aaa does not apply to those protrusions.

bbb

The bilateral profile tolerance that controls the position

of the plastic body sides. The centers of the profile

zones are defined by the basic dimensions D and E.

ccc

The unilateral tolerance located above the seating

plane where in the bottom surface of all terminals

must be located.

This tolerance is commonly know as the “coplanarity”

of the package terminals.

ddd

The tolerance that controls the position of the

terminals to each other. The centers of the profile

zones are defined by basic dimension "e".

This tolerance is normally compounded with tolerance

zone defined by “b”.

20. Notch may be present in this area (MAX 1.5 mm square) if center top gate molding technology is applied.

Resin gate residual not protruding out of package top surface.

L9963E

TQFP 10x10 64L exposed pad down package information

DS13636 - Rev 12

page 172/184

L9963E Scheda tecnica(PDF) 172 Page - STMicroelectronics