参数资料
型号: A3987SLPTR-T
厂商: Allegro Microsystems Inc
文件页数: 7/13页
文件大小: 0K
描述: IC DRIVER MICROSTEPPING 24-TSSOP
产品培训模块: A3987 DMOS Microstepping
标准包装: 1
应用: 步进电机驱动器
输出数: 1
电流 - 输出: ±1.5A
电压 - 负载: 8 V ~ 50 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: 24-TSSOP(0.173",4.40mm)裸露焊盘
供应商设备封装: 24-TSSOP 裸露焊盘
包装: 标准包装
产品目录页面: 1141 (CN2011-ZH PDF)
其它名称: 620-1171-6
A3987
STEP
100
70
DMOS Microstepping Driver with Translator
STEP
100
70
Slow
Slow
Slow
Phase 1
I OUT1A
DIR = H
0
Slow
Phase 1
I OUT1A
DIR = H
0
Mixed
Mixed
Mixed
(%)
–70
–100
100
(%)
–70
–100
100
70
70
Slow Slow
Slow
Slow
Phase 2
I OUT2A
DIR = H
(%)
0
Slow
Phase 2
I OUT2B
DIR = H
(%)
0
Mixed
Mixed
Mixed
–70
–100
Figure 2. Decay Mode for Full-Step Increments
STEP
100
94
70
–70
–100
Figure 3. Decay Modes for Half-Step Increments
Phase 1
I OUT1A
DIR = H
38
0
Slow
Mixed
Slow
Mixed
Slow
(%)
–38
–70
–93
–100
100
93
70
Phase 2
I OUT2B
DIR = H
38
0
Slow
Mixed
Slow
Mixed
Slow
Mixed
(%)
–38
–70
–93
–100
Figure 4. Decay Modes for Quarter-Step Increments
Allegro MicroSystems, LLC
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
7
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