A3989_V Datasheet, PDF (11/13 Pages) Allegro MicroSystems – Bipolar Stepper and High Current DC Motor Driver

A3989
Bipolar Stepper and High Current DC Motor Driver
Pin-out Diagram
I12 28
I11 29
GND 30
VCP 31
CP1 32
CP2 33
I01 34
I02 35
ENABLE 36
PAD
18 PHASE1
17 PHASE2
16 GND
15 NC
14 VREF3
13 VREF2
12 VREF1
11 VDD
10 PHASE3
Terminal List Table
Number
Name
1
NC
2
OUT1A
3
SENSE1
4
OUT1B
5
VBB
6
OUT2B
7
SENSE2
8
OUT2A
9
NC
10
PHASE3
11
VDD
12
VREF1
13
VREF2
14
VREF3
15
NC
16
GND
17
PHASE2
18
PHASE1
19
NC
20
OUT3A
21
SENSE3
22
OUT3B
23
VBB
24
OUT3B
25
SENSE3
26
OUT3A
27
MODE
28
I12
29
I11
30
GND
31
VCP
32
CP1
33
CP2
34
I01
35
I02
36
ENABLE
–
PAD
Description
No Connect
DMOS Full Bridge 1 Output A
Sense Resistor Terminal for Bridge 1
DMOS Full Bridge 1 Output B
Load Supply Voltage
DMOS Full Bridge 2 Output B
Sense Resistor Terminal for Bridge 2
DMOS Full Bridge 2 Output A
No Connect
Control Input
Logic Supply Voltage
Analog Input
Analog Input
Analog Input
No Connect
Ground
Control Input
Control Input
No Connect
DMOS Full Bridge 3 Output A
Sense Resistor Terminal for Bridge 3
DMOS Full Bridge 3 Output B
Load Supply Voltage
DMOS Full Bridge 3 Output A
Sense Resistor Terminal for Bridge 3
DMOS Full Bridge 3 Output B
Control Input
Control Input
Control Input
Ground
Reservoir Capacitor Terminal
Charge Pump Capacitor Terminal
Charge Pump Capacitor Terminal
Control Input
Control Input
Control Input
Exposed pad for enhanced thermal performance. Should
be soldered to the PCB
Allegro MicroSystems, LLC
11
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com