485BH

MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
QFN20 4x4, 0.5P
CASE 485BH−01
ISSUE O
1
DATE 19 FEB 2010
SCALE 2:1
B
A
D
ÎÎÎÎ
ÎÎÎÎ
ÎÎÎÎ
ÎÎÎÎ
L
PIN ONE
REFERENCE
L1
DETAIL A
E
ALTERNATE TERMINAL
CONSTRUCTIONS
EXPOSED Cu
0.15 C
0.15 C
L
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. DIMENSION b APPLIES TO PLATED TERMINAL
AND IS MEASURED BETWEEN 0.15 AND 0.30 MM
FROM TERMINAL TIP.
4. COPLANARITY APPLIES TO THE EXPOSED PAD
AS WELL AS THE TERMINALS.
TOP VIEW
DIM
A
A1
A3
b
D
D2
E
E2
e
K
L
L1
ÏÏ
ÏÏ
MOLD CMPD
DETAIL B
ALTERNATE
CONSTRUCTION
A
0.10 C
A3
0.08 C
A1
SIDE VIEW
DETAIL A
6
20X
GENERIC
MARKING DIAGRAM*
DETAIL B
NOTE 4
MILLIMETERS
MIN
MAX
0.80
1.00
−−−
0.05
0.20 REF
0.20
0.30
4.00 BSC
2.60
2.80
4.00 BSC
2.60
2.80
0.50 BSC
0.20
−−−
0.35
0.45
0.00
0.15
D2
C
XXXXX
XXXXX
ALYWG
G
SEATING
PLANE
K
L
11
E2
1
16
e
BOTTOM VIEW
20X
b
0.10 C A B
0.05 C
XXXXX = Specific Device Code
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
(Note: Microdot may be in either location)
*This information is generic. Please refer
to device data sheet for actual part
marking. Pb−Free indicator, “G”, may
or not be present.
MOUNTING FOOTPRINT
NOTE 3
4.30
2.80
20X
0.60
1
2.80
4.30
PACKAGE
OUTLINE
0.50
PITCH
DOCUMENT NUMBER:
98AON48317E
20X
0.35
DIMENSIONS: MILLIMETERS
Electronic versions are uncontrolled except when
accessed directly from the Document Repository. Printed
STATUS: ON SEMICONDUCTOR STANDARD
versions are uncontrolled except when stamped
“CONTROLLED COPY” in red.
NEW STANDARD:
© Semiconductor Components Industries, LLC, 2002
Case Outline Number:
http://onsemi.com
QFN20 4X4, 0.5P
DESCRIPTION:
October, 2002
− Rev. 0
PAGE 1 OFXXX
2
1
DOCUMENT NUMBER:
98AON48317E
PAGE 2 OF 2
ISSUE
O
REVISION
RELEASED FOR PRODUCTION. REQ. BY M. RAMOS.
DATE
19 FEB 2010
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
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© Semiconductor Components Industries, LLC, 2010
February, 2010 − Rev. 01O
Case Outline Number:
485BH
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