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A3964SLBTR PDF预览

A3964SLBTR

更新时间: 2024-12-01 21:15:47
品牌 Logo 应用领域
急速微 - ALLEGRO 电动机控制光电二极管
页数 文件大小 规格书
7页 342K
描述
Stepper Motor Controller, 1A, BIPolar, PDSO20, PLASTIC, SOIC-20

A3964SLBTR 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:SOIC包装说明:SOP, SOP20,.4
针数:20Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.87模拟集成电路 - 其他类型:STEPPER MOTOR CONTROLLER
JESD-30 代码:R-PDSO-G20长度:12.8 mm
湿度敏感等级:1功能数量:1
端子数量:20最高工作温度:85 °C
最低工作温度:-20 °C最大输出电流:1 A
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP20,.4封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):225
电源:5 V认证状态:Not Qualified
座面最大高度:2.65 mm子类别:Motion Control Electronics
最大供电电流 (Isup):85 mA最大供电电压 (Vsup):5.25 V
最小供电电压 (Vsup):4.75 V标称供电电压 (Vsup):5 V
表面贴装:YES技术:BIPOLAR
温度等级:OTHER端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:7.5 mm
Base Number Matches:1

A3964SLBTR 数据手册

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A3964  
Dual Full-Bridge PWM Motor Driver  
Features and Benefits  
±800 mA continuous output current rating  
30 V output voltage rating  
Internal PWM current control, saturated sink drivers  
Internally generated, precision 2.5 V reference  
Internal transient-suppression diodes  
Description  
Designed for pulse width modulated (PWM) current control  
of bipolar stepper motors, the A3964 is capable of continuous  
output currents to ±800 mA and operating voltages to 30 V.  
Internal fixed off-time PWM current-control circuitry can be  
used to regulate the maximum load current to a desired value.  
An internal precision voltage reference is provided to improve  
motor peak-current control accuracy. The peak load current  
limit is set by the user’s selection of an external resistor divider  
and current-sensing resistors.  
Internal thermal-shutdown circuitry  
Crossover-current protection, UVLO protection  
Package: 20 pin SOIC (suffix LB)  
The fixed off-time pulse duration is set by user-selected  
external RC timing networks. The capacitor in the RC timing  
network also determines a user-selectable blanking window  
that prevents false triggering of the PWM current control  
circuitryduringswitchingtransitions.Thiseliminatestheneed  
for two external RC filter networks on the current-sensing  
comparator inputs.  
ForeachbridgethePHASEinputcontrolsloadcurrentpolarity  
by selecting the appropriate source and sink driver pair. For  
Not to scale  
Continued on the next page…  
Functional Block Diagram  
3
1
4
18  
20  
17  
UVLO  
& TSD  
V
CC  
VBB  
PHASE  
9
12  
11  
PHASE  
1
2
1
2
10  
ENABLE  
ENABLE  
1
2
SOURCE  
DISABLE  
SOURCE  
DISABLE  
2.5 V  
REFERENCE  
V
REF(IN)  
+
+
ONE SHOT  
ONE SHOT  
8
2
14  
7
19  
13  
5
6 15 16  
R
R
B
R
R
A
S
T
R
T
C
T
C
T
R
S
Dwg. FP-033-1  
29319.28g  

A3964SLBTR 替代型号

型号 品牌 替代类型 描述 数据表
A3964SLBTR-T ALLEGRO

完全替代

DUAL FULL-BRIDGE PWM MOTOR DRIVER
A3964SLB-T ALLEGRO

完全替代

DUAL FULL-BRIDGE PWM MOTOR DRIVER

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