FAN5240 Datasheet, PDF (17/19 Pages) Fairchild Semiconductor – Multi-Phase PWM Controller for AMD Mobile Athlon TM and Duron TM

PRODUCT SPECIFICATION
Mechanical Dimensions
28-Pin QSOP
Symbol
A
A1
A2
B
C
D
E
e
H
h
L
N
α
Inches
Min. Max.
0.053 0.069
0.004 0.010
-
0.061
0.008 0.012
0.007 0.010
0.386 0.394
0.150 0.157
0.025 BSC
0.228 0.244
0.0099 0.0196
0.016 0.050
28
0°
8°
Millimeters
Min. Max.
1.35 1.75
0.10 0.25
-
1.54
0.20 0.30
0.18 0.25
9.81 10.00
3.81 3.98
0.635 BSC
5.80 6.19
0.26 0.49
0.41 1.27
28
0°
8°
Notes
9
3
4
5
6
7
FAN5240
Notes:
1. Symbols are defined in the "MO Series Symbol List" in
Section 2.2 of Publication Number 95.
2. Dimensioning and tolerancing per ANSI Y14.5M-1982.
3. Dimension "D" does not include mold flash, protrusions
or gate burrs. Mold flash, protrusions shall not exceed
0.25mm (0.010 inch) per side.
4. Dimension "E" does not include interlead flash or
protrusions. Interlead flash and protrusions shall not
exceed 0.25mm (0.010 inch) per side.
5. The chamber on the body is optional. If it is not present,
a visual index feature must be located within the
crosshatched area.
6. "L" is the length of terminal for soldering to a substrate.
7. "N" is the maximum number of terminals.
8. Terminal numbers are shown for reference only.
9. Dimension "B" does not include dambar protrusion.
Allowable dambar protrusion shall be 0.10mm (0.004
inch) total in excess of "B" dimension at maximum
material condition.
10. Controlling dimension: INCHES. Converted millimeter
dimensions are not necessarily exact.
D
EH
A1
C
A A2
α
e
B
SEATING – C –
PLANE _{LEAD COPLANARITY}
L
ccc C
REV. 1.1.7 8/29/02
17