a6279eet-t Allegro MicroSystems, Inc., a6279eet-t Datasheet - Page 16

• Manufacturer Part Number: a6279eet-t
• Description: Serial-input Constant-current Latched Led Drivers With Open Led Detection
• Manufacturer: Allegro MicroSystems, Inc.

A6278
A6279
and
Package LP, 24-pin TSSOP with Exposed Thermal Pad (A6279)
24X
1.85
NOM
24X
0.10 [.004]
0.53
REF
.073
0.10 [.004] M C A B
0.30
0.19
.021
.012
.007
C
24
1
24
1
C
A
2
2
0.45
NOM
.018
4.32
NOM
4.32
NOM
7.9
7.7
.170
0.65 .026
.170
.311
.303
B
Serial-Input, Constant-Current Latched
LED Drivers with Open LED Detection
3
NOM
.118
3
NOM
A
0.65
NOM
.118
0.15
0.00
5.9
NOM
.026
4.5
4.3
1.20
MAX
SEATING
PLANE
.006
.000
B
.232
.177
.169
.047
6.6
6.2
C
.260
.244
A Terminal #1 mark area
B Exposed thermal pad (bottom surface) U.S. Customary dimensions controlling
C Reference land pattern layout (reference IPC7351
Preliminary dimensions, for reference only
(reference JEDEC MO-153 ADT)
Dimensions in millimeters
U.S. Customary dimensions (in.) in brackets, for reference only
Dimensions exclusive of mold flash, gate burrs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
TSOP65P640X120-25M); adjust as necessary to meet
application process requirements and PCB layout
tolerances; when mounting on a multilayer PCB, thermal
vias at the exposed thermal pad land can improve thermal
dissipation (reference EIA/JEDEC Standard JESD51-5)
GAUGE PLANE
8º
0º
0.25 .010
115 Northeast Cutoff, Box 15036
0.75
0.45
SEATING PLANE
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
0.20
0.09
1
REF
.030
.018
.039
.008
.004
16