WM8976 datasheet(82/83 Pages) WOLFSON

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WM8976

Preliminary Technical Data

PTD Rev 2.0 February 2005

PACKAGE DIAGRAM

DM030.D

FL: 32 PIN QFN PLASTIC PACKAGE 5 X 5 X 0.9 mm BODY, 0.50 mm LEAD PITCH

NOTES:

1. DIMENSION b APPLIED TO METALLIZED TERMINAL AND IS MEASURED BETWEEN 0.25 mm AND 0.30 mm FROM TERMINAL TIP. DIMENSION L1 REPRESENTS TERMINAL PULL BACK FROM

PACKAGE SIDE WALL. MAXIMUM OF 0.1mm IS ACCEPTABLE. WHERE TERMINAL PULL BACK EXISTS, ONLY UPPER HALF OF LEAD IS VISIBLE ON PACKAGE SIDE WALL DUE TO HALF

ETCHING OF LEADFRAME.

2. FALLS WITHIN JEDEC, MO-220 WITH THE EXCEPTION OF D2, E2:

D2,E2: LARGER PAD SIZE CHOSEN WHICH IS JUST OUTSIDE JEDEC SPECIFICATION

3. ALL DIMENSIONS ARE IN MILLIMETRES

4. THIS DRAWING IS SUBJECT TO CHANGE WITHOUT NOTICE.

5. SHAPE AND SIZE OF CORNER TIE BAR MAY VARY WITH PACKAGE TERMINAL COUNT. CORNER TIE BAR IS CONNECTED TO EXPOSED PAD INTERNALLY

SEE DETAIL B

E2/2

CORNER

TIE BAR

0.08

ccc

(A3)

SEATING PLANE

D2/2

SEE DETAIL A

INDEX AREA

(D/2 X E/2)

TOP VIEW

aaa

2 X

aaa

2 X

DETAIL B

DETAIL A

bbb M

32x b

CORNER

TIE BAR

Symbols

Dimensions (mm)

MIN

NOM

MAX

NOTE

0.85

0.90

1.00

0.05

0.02

0.2 REF

0.30

0.23

0.18

5.00

3.4

3.3

3.2

0.5 BSC

0.35

0.4

0.45

0.1

b(min)/2

0.20

aaa

bbb

ccc

REF:

0.15

0.10

JEDEC, MO-220, VARIATION VHHD-2

Tolerances of Form and Position

4.90

5.10

5.00

4.90

5.10

3.4

3.3

3.2

EXPOSED

CENTRE

PAD

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