A3977 Allegro MicroSystems, Inc., A3977 Datasheet - Page 17

• Manufacturer Part Number: A3977
• Description: Microstepping DMOS Driver with Translator
• Manufacturer: Allegro MicroSystems, Inc.

NOTES: 1. Exact body and lead configuration at vendor’s option within limits shown.
www.allegromicro.com
2. Lead spacing tolerance is non-cumulative.
3. Supplied in standard sticks/tubes of 49 devices or add “TR” to part number for tape and reel.
0.0075
0.0472
0.012
0.177
0.169
MAX
1.20
MAX
4.50
4.30
0.30
0.19
0.0059
0.00
28
1
28
0.15
0.00
1
2
2
INDEX
AREA
INDEX
AREA
3
3
0.197
0.386
0.378
9.80
9.60
5.0
0.118
3.0
15
15
0.026
BSC
0.65
BSC
GAUGE PLANE
SEATING PLANE
GAUGE PLANE
SEATING PLANE
0.0079
0.0035
0.20
0.09
MICROSTEPPING DMOS DRIVER
0
0
THERMAL PAD
THERMAL PAD
TO
TO
0.0098
BSC
EXPOSED
8
0.25
EXPOSED
BSC
8
0.260
0.244
6.60
6.20
0.0394
REF
1.00
REF
Dwg. MA-008-30A mm
Dwg. MA-008-30A in
0.030
0.018
WITH TRANSLATOR
0.75
0.45
3977