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| 型号： | A3989SEVTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 11/13页 |
| 文件大小： | 0K |
| 描述： | IC STEPPER/MOTOR DRIVER 36-QFN |
| 标准包装： | 1 |
| 应用： | 直流电机驱动器，步进电机驱动器 |
| 输出数： | 2 |
| 电压 - 负载： | 8 V ~ 36 V |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -20°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 36-VFQFN 裸露焊盘 |
| 供应商设备封装： | 36-QFN-EP（6x6） |
| 包装： | 标准包装 |
| 产品目录页面： | 1141 (CN2011-ZH PDF) |
| 其它名称： | 620-1183-6 |
A3989
Bipolar Stepper and High Current DC Motor Driver
Pin-out Diagram
I12 28
I11 29
GND 30
18
17
16
PHASE1
PHASE2
GND
VCP 31
CP1 32
CP2 33
I01 34
I02 35
ENABLE 36
PAD
15
14
13
12
11
10
NC
VREF3
VREF2
VREF1
VDD
PHASE3
Terminal List Table
Number
1
2
3
4
5
6
7
8
9
10
11
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
–
Name
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
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
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
11
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