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A4975SB-T PDF预览

A4975SB-T

更新时间: 2024-02-20 10:37:45
品牌 Logo 应用领域
急速微 - ALLEGRO 驱动器电机
页数 文件大小 规格书
13页 314K
描述
Full-Bridge PWM Microstepping Motor Driver

A4975SB-T 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOIC
包装说明:SOP, SOP16,.4针数:16
Reach Compliance Code:compliantHTS代码:8542.39.00.01
风险等级:1.14Samacsys Confidence:4
Samacsys Status:Released2D Presentation:https://componentsearchengine.com/2D/0T/338047.1.1.png
Schematic Symbol:https://componentsearchengine.com/symbol.php?partID=338047PCB Footprint:https://componentsearchengine.com/footprint.php?partID=338047
3D View:https://componentsearchengine.com/viewer/3D.php?partID=338047Samacsys PartID:338047
Samacsys Image:https://componentsearchengine.com/Images/9/A4975SLBTR-T.jpgSamacsys Thumbnail Image:https://componentsearchengine.com/Thumbnails/1/A4975SLBTR-T.jpg
Samacsys Pin Count:16Samacsys Part Category:Integrated Circuit
Samacsys Package Category:Small Outline PackagesSamacsys Footprint Name:16 SOICW
Samacsys Released Date:2016-09-07 08:58:06Is Samacsys:N
其他特性:ALSO REQUIRE 5V TO 50V模拟集成电路 - 其他类型:STEPPER MOTOR CONTROLLER
JESD-30 代码:R-PDSO-G16JESD-609代码:e3
长度:10.3 mm湿度敏感等级:3
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:SOP
封装等效代码:SOP16,.4封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
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:YES
温度等级:OTHER端子面层:Matte Tin (Sn)
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:40
宽度:7.5 mmBase Number Matches:1

A4975SB-T 数据手册

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A4975  
Full-Bridge PWM Microstepping Motor Driver  
ELECTRICAL CHARACTERISTICS (continued) at TA = 25°C, VCC = 4.5 to 5.5 V (unless  
otherwise noted.)  
Characteristic  
Symbol Test Conditions  
Min.  
Typ.  
Max.  
Unit  
Control Circuitry (cont’d)  
Current-Sense Comparator Input  
Offset Voltage*  
VIO(S)  
VREF = 0 V  
±5.0  
mV  
D0 = D1 = D2 = VIN(0)  
0
%
%
%
%
%
%
%
%
°C  
°C  
D0 = VIN(1), D1 = D2 = VIN(0)  
D0 = VIN(0), D1 = VIN(1), D2 = VIN(0)  
D0 = D1 = VIN(1), D2 = VIN(0)  
D0 = D1 = VIN(0), D2 = VIN(1)  
D0 = VIN(1), D1 = VIN(0), D2 = VIN(1)  
D0 = VIN(0), D1 = D2 = VIN(1)  
D0 = D1 = D2 = VIN(1)  
19.5  
38.2  
55.5  
70.7  
83.1  
92.4  
100  
165  
15  
Step Reference Current Ratio  
SRCR  
Thermal Shutdown Temp.  
Thermal Shutdown Hysteresis  
AC Timing  
TJ  
TJ  
PWM RC Fixed Off-time  
tOFFRC  
tON(min)  
CT = 470 pF, RT= 43 kꢀ  
18.2  
0.8  
20.2  
1.6  
22.3  
2.2  
μs  
μs  
VCC = 5.0 V, RT 43 k, CT = 470 pF,  
IOUT = 100 mA  
PWM Minimum On Time  
* The total error for the VREF/VS function is the sum of the D/A error and the current-sense comparator input offset voltage.  
Table 1 — PHASE Truth Table  
Table 3 — DAC Truth Table  
PHASE  
OUTA  
OUTB  
DAC DATA  
Current  
Ratio, %  
D2  
H
H
H
H
L
D1  
H
H
L
D0  
H
L
VREF/VS  
5.00  
H
L
H
L
L
H
100  
92.4  
83.1  
70.7  
55.5  
38.2  
19.5  
5.41  
Table 2 — PFD Truth Table  
H
L
6.02  
L
7.07  
VPFD  
3.5 V  
Description  
H
H
L
H
L
9.01  
Slow Current-Decay Mode  
Mixed Current-Decay Mode  
Fast Current-Decay Mode  
L
13.09  
25.64  
1.1 V to 3.1 V  
0.8 V  
L
H
L
L
L
All Outputs Disabled  
where VS = ITRIP×RS. See Applications section.  
Allegro MicroSystems, Inc.  
115 Northeast Cutoff  
4
Worcester, Massachusetts 01615-0036 U.S.A.  
1.508.853.5000; www.allegromicro.com  

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