A3989SEVTR-T Allegro Microsystems Inc, A3989SEVTR-T Datasheet - Page 11

• Manufacturer Part Number: A3989SEVTR-T
• Description: IC, MOTOR DRIVER, STEPPER, 1.2A, QFN-36
• Manufacturer: Allegro Microsystems Inc

Specifications of A3989SEVTR-T

• Motor Type: Stepper
• No. Of Outputs: 3
• Output Current: 1.2A
• Output Voltage: 36V
• Supply Voltage Range: 3V To 5.5V
• Driver Case Style: QFN
• No. Of Pins: 36
• Applications: DC Motor Driver, Stepper Motor Driver
• Number Of Outputs: 2
• Voltage - Load: 8 V ~ 36 V
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 36-VFQFN Exposed Pad
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 620-1183-2

A3989
Terminal List Table
Number
10
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
11
1
2
3
4
5
6
7
8
9
–
Bipolar Stepper and High Current DC Motor Driver
NC
OUT1A
SENSE1
OUT1B
VBB
OUT2B
SENSE2
OUT2A
NC
PHASE3
VDD
VREF1
VREF2
VREF3
NC
GND
PHASE2
PHASE1
NC
OUT3A
SENSE3
OUT3B
VBB
OUT3B
SENSE3
OUT3A
MODE
I12
I11
GND
VCP
CP1
CP2
I01
I02
ENABLE
PAD
Name
ENABLE
GND
VCP
CP1
CP2
I12
I11
I01
I02
28
29
30
31
32
33
34
35
36
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
Pin-out Diagram
PAD
18
17
16
15
14
13
12
10
11
Description
PHASE1
PHASE2
GND
NC
VREF3
VREF2
VREF1
VDD
PHASE3
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
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