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LB1946

更新时间： 2024-10-26 11:39:59
品牌 Logo 应用领域
三洋 - SANYO 驱动器光电二极管电动机控制电机局域网
页数 文件大小 规格书
16页 132K
描述
PWM Current Control Stepping Motor Driver

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LB1946 技术参数

生命周期：Transferred零件包装代码：DFM
包装说明：SDIP, SDIP28,.5针数：28
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.37
Is Samacsys：N模拟集成电路 - 其他类型：STEPPER MOTOR CONTROLLER
JESD-30 代码：R-PDFM-T28功能数量：1
端子数量：28最高工作温度：85 °C
最低工作温度：-20 °C最大输出电流：1.75 A
封装主体材料：PLASTIC/EPOXY封装代码：SDIP
封装等效代码：SDIP28,.5封装形状：RECTANGULAR
封装形式：FLANGE MOUNT电源：5,45 V
认证状态：Not Qualified子类别：Motion Control Electronics
最大供电电流 (Isup)：3.5 mA最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：4.5 V标称供电电压 (Vsup)：5 V
表面贴装：NO技术：BIPOLAR
温度等级：COMMERCIAL EXTENDED端子形式：THROUGH-HOLE
端子节距：1.78 mm端子位置：DUAL
Base Number Matches：1

LB1946 数据手册

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Ordering number : EN7115  
Monolithic Digital IC  
LB1946  
PWM Current Control Stepping Motor Driver  
Overview  
The LB1946 is stepping motor drive IC that implements PWM current control bipolar drive with a fixed off time. This IC  
features 15-current setting levels using a fixed VREF voltage and supports for microstepping drive from 1-2 phase  
excitation to 4W1-2 phase excitation drive. This device is optimal for driving stepping motors such as those used for  
carriage drive and paper feed in printers.  
Applications  
• PWM current control stepping motor drivers  
Features  
• PWM current control with a fixed off time  
• Logic input serial-parallel converter (allows 1-2, W1-2, 2W1-2, and 4W1-2 phase excitation drive)  
• Current attenuation switching function (with slow decay, fast decay, and mixed decay modes)  
• Built-in upper and lower side output diodes  
• Simultaneous on state prevention function (through current prevention)  
• Noise canceller function  
• Thermal shutdown circuit  
• Shutoff on low logic system voltage circuit  
• Low-power mode control pin  
Specifications  
Absolute Maximum Ratings at Ta = 25°C  
Parameter  
Symbol  
Conditions  
Ratings  
Unit  
V
Motor supply voltage  
VBB  
50  
1.75  
1.5  
Peak output current  
I
PEAK  
max  
tw≤20µs  
A
O
I
Maximum continuous output current  
Logic system supply voltage  
Logic input voltage range  
Emitter output voltage  
A
O
V
7.0  
V
CC  
V
-0.3 to V  
V
IN  
CC  
1.0  
VE  
Topr  
V
Operating temperature  
-20 to +85  
-55 to +150  
3.0  
°C  
°C  
W
Storage temperature  
Tstg  
Allowable power dissipation (IC internal)  
Pd max  
Ta=25°C, independent IC  
Any and all SANYO Semiconductor products described or contained herein do not have specifications  
that can handle applications that require extremely high levels of reliability, such as life-support systems,  
aircraft's control systems, or other applications whose failure can be reasonably expected to result in  
serious physical and/or material damage. Consult with your SANYO Semiconductor representative  
nearest you before using any SANYO Semiconductor products described or contained herein in such  
applications.  
SANYO Semiconductor assumes no responsibility for equipment failures that result from using products  
at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition  
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor  
products described or contained herein.  
11707 SY IM B8-5416 No.7115-1/16  
1234567...16

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