A3977 Allegro MicroSystems, Inc., A3977 Datasheet - Page 16

• 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.
3977
MICROSTEPPING DMOS DRIVER
WITH TRANSLATOR
2. Lead spacing tolerance is non-cumulative.
3. Webbed lead frame. Terminals 1, 2, 11, 12, 13, 22, 23, 24, 33, 34, 35, and 44 are internally one piece.
4. Supplied in standard sticks/tubes of 27 devices or add “TR” to part number for tape and reel.
0.319
0.291
0.319
0.291
8.10
7.39
8.10
7.39
0.021
0.013
0.050
0.533
0.331
BSC
1.27
BSC
0.180
0.165
4.57
4.20
0.020
0.51
MIN
MIN
0.695
0.685
17.65
17.40
0.656
0.650
16.662
16.510
0.032
0.026
0.812
0.661
29
39
39
29
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
40
28
40
28
16.662
16.510
44
0.656
0.650
44
1
17.65
17.40
1
0.695
0.685
2
2
INDEX AREA
INDEX AREA
18
6
18
6
Dwg. MA-005-44A mm
Dwg. MA-005-44A in
17
7
17
7