参数资料
型号: A3980KLP-T
厂商: Allegro Microsystems Inc
文件页数: 17/19页
文件大小: 0K
描述: IC MOTOR DRIVER MICROSTEP 28-TSS
标准包装: 50
应用: 步进电机驱动器
输出数: 1
电流 - 输出: ± 1A
电压 - 负载: 7 V ~ 50 V
电源电压: 3 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 28-SOIC(0.173",4.40mm 宽)裸露焊盘
供应商设备封装: 28-TSSOP 裸露焊盘
包装: 管件
其它名称: 620-1081
A3980
Automotive DMOS Microstepping Driver
with Translator
Current Sensing. To minimize inaccuracies caused by
ground-trace IR drops in sensing the output current level,
the current-sense resistors (R S1 and R S2 ) should have an
independent ground return to the star ground point. This path
should be as short as possible. For low-value sense resistors,
the IR drops in the printed circuit board sense resistor traces
can be signi ? cant and should be taken into account. The use
of sockets should be avoided as they can introduce variation
in R S due to their contact resistance.
The recommended value of the sense resistor, R S ( Ω ), is
given by
R S = 0.5 / I TripMAX
up to a maximum of 1 Ω for I TripMAX of 0.5 A. Below 0.5 A,
R S should be 1 Ω , and V REF reduced accordingly, as shown
in the following table.
I MAX (A)
Recommended
R S ( Ω ) V REF (V)
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.00
1.00
1.00
1.00
1.00
0.83
0.71
0.63
0.56
0.50
0.8
1.6
2.4
3.2
4.0
4.0
4.0
4.0
4.0
4.0
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
16
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相关代理商/技术参数
参数描述
A3980KLP-T 制造商:Allegro MicroSystems 功能描述:Driver IC Package/Case:28-TSSOP
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A3980KLPTR-T 功能描述:IC DRIVER MICROSTEPPING 28-TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电机和风扇控制器,驱动器 系列:- 标准包装:1 系列:- 应用:步进电机驱动器,1-2 相,2 相 评估套件:- 输出数:1 电流 - 输出:800mA 电压 - 负载:10 V ~ 28 V 电源电压:4.75 V ~ 5.25 V 工作温度:-20°C ~ 90°C 安装类型:表面贴装 封装/外壳:28-SOP + 2 翼片裸露焊盘 供应商设备封装:28-HSOPHC(15.2x7.9) 包装:剪切带 (CT) 其它名称:869-1268-1
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A3981_V 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Automotive, Programmable Stepper Driver