参数资料
型号: A4988SETTR-T
厂商: Allegro Microsystems Inc
文件页数: 6/20页
文件大小: 0K
描述: IC MICROSTEPPER MOTOR DRVR 28QFN
特色产品: A498x Motor Driver Family
标准包装: 1
应用: 步进电机驱动器
输出数: 1
电流 - 输出: ±2A
电压 - 负载: 8 V ~ 35 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: 28-VFQFN 裸露焊盘
供应商设备封装: 28-QFN/MLP 裸露焊盘(5x5)
包装: 标准包装
其它名称: 620-1343-6
A4988
DMOS Microstepping Driver with Translator
And Overcurrent Protection
STEP
t A
t B
MS1, MS2, MS3,
RESET, or DIR
t C
t D
Time Duration
STEP minimum, HIGH pulse width
STEP minimum, LOW pulse width
Setup time, input change to STEP
Hold time, input change to STEP
Symbol
t A
t B
t C
t D
Typ.
1
1
200
200
Unit
μ s
μ s
ns
ns
Figure 1. Logic Interface Timing Diagram
Table 1. Microstepping Resolution Truth Table
MS1
L
H
L
H
H
MS2
L
L
H
H
H
MS3
L
L
L
L
H
Microstep Resolution
Full Step
Half Step
Quarter Step
Eighth Step
Sixteenth Step
Excitation Mode
2 Phase
1-2 Phase
W1-2 Phase
2W1-2 Phase
4W1-2 Phase
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
6
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A4989 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:The A4989 is a dual full-bridge gate driver with integrated microstepping translator suitable for driving a wide range of higher power industrial bipolar 2-phase stepper motors (typically 30 to 500 W).
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