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A3988 Datasheet(PDF) 11 Page - Allegro MicroSystems

Part No. A3988
Description  Quad DMOS Full Bridge PWM Motor Driver
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

A3988 Datasheet(HTML) 11 Page - Allegro MicroSystems

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Quad DMOS Full Bridge PWM Motor Driver
A3988
11
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Terminal List Table
Package EV
18
17
16
15
14
13
12
11
10
28
29
30
31
32
33
34
35
36
PHASE1
PHASE2
GND
VREF4
VREF3
VREF2
VREF1
VDD
PHASE3
I12
I11
GND
VCP
CP1
CP2
I01
I02
I03
PAD
24
23
22
21
20
19
18
17
16
15
14
13
37
38
39
40
41
42
43
44
45
46
47
48
I14
NC
PHASE1
PHASE2
GND
VREF4
VREF3
VREF2
VREF1
VDD
PHASE3
PHASE4
I13
I12
I11
GND
NC
VCP
CP1
CP2
I01
I02
I03
I04
PAD
Package JP
Number
Pin Name
Pin Description
EV
JP
2
3
OUT1A
DMOS Full-Bridge 1 Output A
3
4
SENSE1
Sense Resistor Terminal for Bridge 1
4
5
OUT1B
DMOS Full-Bridge 1 Output B
5
6
VBB1
Load Supply Voltage
6
8
OUT2B
DMOS Full-Bridge 2 Output B
7
9
SENSE2
Sense Resistor Terminal for Bridge 2
8
10
OUT2A
DMOS Full-Bridge 2 Output A
9
13
PHASE4
Control Input
10
14
PHASE3
Control Input
11
15
VDD
Logic Supply Voltage
12
16
VREF1
Analog Input
13
17
VREF2
Analog Input
14
18
VREF3
Analog Input
15
19
VREF4
Analog Input
16
20
GND
Ground
17
21
PHASE2
Control Input
18
22
PHASE1
Control Input
19
24
I14
Control Input
20
27
OUT4A
DMOS Full-Bridge 4 Output A
21
28
SENSE4
Sense Resistor Terminal for Bridge 4
22
29
OUT4B
DMOS Full-Bridge 4 Output B
23
31
VBB2
Load Supply Voltage
24
32
OUT3B
DMOS Full-Bridge 3 Output B
25
33
SENSE3
Sense Resistor Terminal for Bridge 3
26
34
OUT3A
DMOS Full-Bridge 3 Output A
27
37
I13
Control Input
28
38
I12
Control Input
29
39
I11
Control Input
30
40
GND
Ground
31
42
VCP
Reservoir Capacitor Terminal
32
43
CP1
Charge Pump Capacitor Terminal
33
44
CP2
Charge Pump Capacitor Terminal
34
45
I01
Control Input
35
46
I02
Control Input
36
47
I03
Control Input
1
48
I04
Control Input
1, 2, 7, 11,
12, 23, 25,
26, 30, 35,
36, 41
NC
No Connect
––
PAD
Exposed pad for enhanced thermal perfor-
mance. Should be soldered to the PCB.
Packages are not to scale
Pin-out Diagrams


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