485AR

MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
QFN28 4x4, 0.4P
CASE 485AR−01
ISSUE A
DATE 20 NOV 2009
1
SCALE 2:1
PIN ONE
REFERENCE
B
A
D
ÎÎÎÎ
ÎÎÎÎ
ÎÎÎÎ
ÎÎÎÎ
L
L1
DETAIL A
ALTERNATE TERMINAL
CONSTRUCTIONS
E
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 THE TERMINAL TIP.
4. COPLANARITY APPLIES TO THE EXPOSED PAD
AS WELL AS THE TERMINALS.
DIM
A
A1
A3
b
D
D2
E
E2
e
K
L
L1
ÏÏ
ÏÏ
EXPOSED Cu
0.10 C
0.10 C
L
MOLD CMPD
DETAIL B
TOP VIEW
ALTERNATE
CONSTRUCTION
A
DETAIL B
A3
0.10 C
GENERIC
MARKING DIAGRAM*
0.08 C
NOTE 4
A1
SIDE VIEW
SEATING
PLANE
C
XXXXXX
XXXXXX
ALYWG
G
0.10 C A B
D2
DETAIL A
K
8
0.10 C A B
15
28X
L
E2
1
PIN 1
INDICATOR
22
e
28X
BOTTOM VIEW
b
0.07 C A B
0.05 C
MILLIMETERS
MIN
MAX
0.80
1.00
0.00
0.05
0.20 REF
0.15
0.25
4.00 BSC
2.50
2.70
4.00 BSC
2.50
2.70
0.40 BSC
0.30 REF
0.30
0.50
−−−
0.15
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.
RECOMMENDED
MOUNTING FOOTPRINT
NOTE 3
4.30
2.71
28X
0.62
1
2.71
4.30
PACKAGE
OUTLINE
0.40
PITCH
DOCUMENT NUMBER:
98AON30349E
28X
0.26
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
QFN28 4X4, 0.4P
DESCRIPTION:
October, 2002
− Rev. 0
PAGE 1 OFXXX
2
1
DOCUMENT NUMBER:
98AON30349E
PAGE 2 OF 2
ISSUE
REVISION
DATE
O
RELEASED FOR PRODUCTION. REQ. BY M. LIN.
15 MAY 2008
A
CHANGED DIMENSIONS D2, E2, K, L, MOUNTING FOOTPRINT AND MARKING
DIAGRAM INFORMATION. REQ. BY J. LIU.
20 NOV 2009
ON Semiconductor and
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© Semiconductor Components Industries, LLC, 2009
November, 2009 − Rev. 01A
Case Outline Number:
485AR