SI8250 Datasheet, PDF (27/30 Pages) Silicon Laboratories – DIGITAL POWER CONTROLLER

Si8250/1/2
10. Package Outline—28QFN
Figure 14 illustrates the package details for the 28-lead QFN version of the Si8250/1/2. Table 19 lists the values for
the dimensions shown in the illustration.
Bottom View
Side View
L
7
6
D2
5
D2
2
4
3
2
1
DETAIL 1
15
16
17
18
R
19
20
21
e
DETAIL 1
AA
CC
6xe
D
Figure 14. 28-lead Quad Flat No-lead (QFN) Package Diagram
Table 19. QFN-28 Package Dimensions
MM
Min
Typ
Max
A
0.80
0.90
1.00
A1
0
0.02
0.05
A2
0
0.65
1.00
A3
—
0.25
—
b
0.18
0.23
0.30
D
—
5.00
—
D2
2.90
3.15
3.35
E
—
5.00
—
E2
2.90
3.15
3.35
MM
Min
Typ
Max
L
0.45
0.55
0.65
N
—
28
—
ND
—
7
—
NE
—
7
—
R
0.09
—
—
AA
—
0.435
—
BB
—
0.435
—
CC
—
0.18
—
DD
—
0.18
—
e
—
0.5
—
Preliminary Rev. 0.8
27