AN1139 STMicroelectronics, AN1139 Datasheet - Page 44
AN1139
Manufacturer Part Number
AN1139
Description
L6254 - L6268 - L6269 12V DISK DRIVE POWER COMBO IC
Manufacturer
STMicroelectronics
Datasheet
1.AN1139.pdf
(63 pages)
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AN1139 APPLICATION NOTE
7.0 PACKAGE & THERMAL
7.1
The device is mounted in a Thin Quad Flat 44 pin Package (TQFP44). The dimensions of the body are
10x10x1.40mm. The mounting information are outlined in the following Figure #28.
Figure 28. TQFP44 Dimensions
44/64
TQFP44 PACKAGE
DIM.
A1
A2
D1
D3
E1
E3
L1
C
D
A
B
e
E
L
K
MIN.
0.05
1.35
0.30
0.09
0.45
34
44
12.00
10.00
12.00
10.00
33
TYP.
1.40
0.37
8.00
0.80
8.00
0.60
1.00
mm
1
(min.), 3.5˚(typ.), 7 (max.)
e
MAX.
1.60
0.15
1.45
0.45
0.20
0.75
D1
D
0.002
0.053
0.012
0.004
0.018
MIN.
0.055
0.014
0.472
0.394
0.315
0.031
0.472
0.394
0.315
0.024
0.039
TYP.
inch
TQFP4410
11
23
MAX.
0.063
0.006
0.057
0.018
0.008
0.030
12
22
MECHANICAL DATA
TQFP44 (10 x 10)
OUTLINE AND
K
Seating Plane
0.10mm
.004
A1
C
A2
A
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