Datasheet
AD6645
Rev. D | Page 24 of 24
OUTLINE DIMENSIONS
COMPLIANT TO JEDEC STANDARDS MS-026-BCC-HD
0.65
BSC
LEAD PITCH
0.38
0.32
0.22
EXPOSED
HEAT SINK
(CENTERED)
BOTTOM VIEW
(PINS UP)
1
.
6
0
M
A
X
V
I
E
W
A
P
I
N
1
0
.
7
5
0
.
6
0
0
.
4
5
4052 40 52
14
13
26
14
26
27
39
27
39
TOP VIEW
(PINS DOWN)
1
13
1
0.20
0.08
1.45
1.40
1.35
0.10 MAX
COPLANARITY
VIEW A
ROTATED 90° CCW
SEATING
PLANE
7°
0°
0.15
0.05
12.20
12.00 SQ
11.80
10.20
10.00 SQ
9.80
2.65
2.50 (4 PLCS)
2.35
2.35
2.20 (4 PLCS)
2.05
6.05
5.90 SQ
5.75
082108-A
FOR PROPER CONNECTION OF
THE EXPOSED PAD, REFER TO
THE PIN CONFIGURATION AND
FUNCTION DESCRIPTIONS
SECTION OF THIS DATA SHEET.
Figure 48. 52-Lead Low Profile Quad Flat Package, PowerQuad [LQFP_PQ4]
(SQ-52-1)
Dimensions shown in millimeters
COMPLIANT TO JEDEC STANDARDS MS-026-ACC
40
52
1
14
13
26
27
39
12.00 BSC
SQ
10.00
BSC SQ
1.20
MAX
0.75
0.60
0.45
VIEW A
TOP VIEW
(PINS DOWN)
PIN 1
40
52
14
1
13
26
27
39
0.65
BSC
LEAD PITCH
0.38
0.32
0.22
BOTTOM VIEW
(PINS UP)
6.50 BSC
SQ
EXPOSED
PAD
072408-A
FOR PROPER CONNECTION OF
THE EXPOSED PAD, REFER TO
THE PIN CONFIGURATION AND
FUNCTION DESCRIPTIONS
SECTION OF THIS DATA SHEET.
SEATING
PLANE
1.05
1.00
0.95
0.20
0.09
0.08 MAX
COPLANARITY
VIEW A
ROTATED 90
°
CCW
0° MIN
7°
3.5°
0°
0.15
0.05
Figure 49. 52-Lead Thin Quad Flat Package, Exposed Pad [TQFP_EP]
(SV-52-1)
Dimensions shown in millimeters
ORDERING GUIDE
Model Temperature Range Package Description Package Option
AD6645ASQ-80 −40°C to +85°C 52-Lead Low Profile Quad Flat Package, PowerQuad (LQFP_PQ4) SQ-52-1
AD6645ASQZ-80
1
−40°C to +85°C 52-Lead Low Profile Quad Flat Package, PowerQuad (LQFP_PQ4) SQ-52-1
AD6645ASVZ-80
1
−40°C to +85°C 52-Lead Thin Quad Flat Package, Exposed Pad [TQFP_EP] SV-52-1
AD6645ASQ-105 −10°C to +85°C 52-Lead Low Profile Quad Flat Package, PowerQuad (LQFP_PQ4) SQ-52-1
AD6645ASQZ-105
1
−10°C to +85°C 52-Lead Low Profile Quad Flat Package, PowerQuad (LQFP_PQ4) SQ-52-1
AD6645ASVZ-105
1
−10°C to +85°C 52-Lead Thin Quad Flat Package, Exposed Pad [TQFP_EP] SV-52-1
AD6645-80/PCBZ
1
Evaluation Board
AD6645-105/PCBZ
1
Evaluation Board
1
Z = RoHS Compliant Part.
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registered trademarks are the property of their respective owners.
D02647-0-10/08(D)