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A4973SB-T PDF预览

A4973SB-T

更新时间： 2024-02-19 05:17:02
品牌 Logo 应用领域
急速微 - ALLEGRO 驱动器运动控制电子器件信号电路光电二极管电动机控制电机PC
页数 文件大小 规格书
11页 287K
描述
Full-Bridge PWM Motor Driver

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A4973SB-T 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：DIP
包装说明：DIP-16针数：16
Reach Compliance Code：compliantHTS代码：8542.39.00.01
风险等级：7.89Samacsys Confidence：3
Samacsys Status：Released2D Presentation：https://componentsearchengine.com/2D/0T/419920.1.1.png
Schematic Symbol：https://componentsearchengine.com/symbol.php?partID=419920PCB Footprint：https://componentsearchengine.com/footprint.php?partID=419920
3D View：https://componentsearchengine.com/viewer/3D.php?partID=419920Samacsys PartID：419920
Samacsys Image：https://componentsearchengine.com/Images/9/A4973SB-T.jpgSamacsys Thumbnail Image：https://componentsearchengine.com/Thumbnails/1/A4973SB-T.jpg
Samacsys Pin Count：16Samacsys Part Category：Integrated Circuit
Samacsys Package Category：Dual-In-Line PackagesSamacsys Footprint Name：A4973SB-T
Samacsys Released Date：2018-10-11 14:40:16Is Samacsys：N
其他特性：ALSO REQUIRE 5V TO 50V模拟集成电路 - 其他类型：BRUSH DC MOTOR CONTROLLER
JESD-30 代码：R-PDIP-T16JESD-609代码：e3
长度：19.05 mm功能数量：1
端子数量：16最高工作温度：85 °C
最低工作温度：-20 °C封装主体材料：PLASTIC/EPOXY
封装代码：DIP封装等效代码：DIP16,.3
封装形状：RECTANGULAR封装形式：IN-LINE
峰值回流温度（摄氏度）：NOT SPECIFIED电源：3.3/5 V
认证状态：Not Qualified座面最大高度：5.33 mm
子类别：Motion Control Electronics最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：3 V标称供电电压 (Vsup)：5 V
表面贴装：NO温度等级：OTHER
端子面层：Matte Tin (Sn)端子形式：THROUGH-HOLE
端子节距：2.54 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：7.62 mm
Base Number Matches：1

A4973SB-T 数据手册

 浏览型号A4973SB-T的Datasheet PDF文件第2页浏览型号A4973SB-T的Datasheet PDF文件第3页浏览型号A4973SB-T的Datasheet PDF文件第4页浏览型号A4973SB-T的Datasheet PDF文件第5页浏览型号A4973SB-T的Datasheet PDF文件第6页浏览型号A4973SB-T的Datasheet PDF文件第7页 
A4973  
Full-Bridge PWM Motor Driver  
Features and Benefits  
Description  
▪ ±1.5 A continuous output current  
▪ 50 V output voltage rating  
Designed for bidirectional pulse width modulated (PWM)  
current control of inductive loads, the A4973 is capable of  
continuous output currents to ±1.5 A and operating voltages  
to 50 V. Internal fixed off-time PWM current-control circuitry  
can be used to regulate the maximum load current to a desired  
value. The peak load current limit is set by the user’s selection  
of an input reference voltage and external sensing resistor. The  
fixed off-time pulse duration is set by a user- selected external  
RCtimingnetwork.Internalcircuitprotectionincludesthermal  
shutdown with hysteresis, transient-suppression diodes, and  
crossover current protection. Special power-up sequencing is  
not required.  
▪ 3 V to 5.5 V logic supply voltage  
▪ Internal PWM current control  
▪ Fast and slow current-decay modes  
▪ Sleep (low current consumption) mode  
▪ Internal transient-suppression diodes  
▪ Internal thermal shutdown circuitry  
▪ Crossover current and UVLO protection  
Packages:  
With the ENABLE input held low, the PHASE input controls  
load current polarity by selecting the appropriate source and  
sink driver pair. The MODE input determines whether the  
PWMcurrent-controlcircuitryoperatesinaslowcurrent-decay  
mode (only the selected source driver switching) or in a fast  
current-decay mode (selected source and sink switching). A  
user-selectable blanking window prevents false triggering of  
the PWM current-control circuitry. With the ENABLE input  
held high, all output drivers are disabled. A sleep mode is  
provided to reduce power consumption.  
Package B, 16-pin DIP  
with exposed tabs  
Package LB, 16-pin SOIC  
with internally fused pins  
Not to scale  
Continued on the next page…  
Functional Block Diagram  
LOGIC  
SUPPLY  
V
9
6
CC  
10  
15  
16  
SLEEP &  
STANDBY MODES  
14  
7
MODE  
PHASE  
V
BB  
UVLO  
& TSD  
8
1
ENABLE  
BRAKE  
PWM LATCH  
R
Q
S
+
–
11  
SENSE  
2
R
BLANKING  
S
GROUND  
V
CC  
4
5
12  
13  
RC  
3
+
–
2
REF  
GROUND  
V
TH  
C
T
R
T
4973DS, Rev. 1  
1234567...11

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