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A3977SLPTR-T PDF预览

A3977SLPTR-T

更新时间: 2024-01-07 13:59:24
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PC
页数 文件大小 规格书
19页 524K
描述
Microstepping DMOS Driver with Translator

A3977SLPTR-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:TSSOP
包装说明:HTSSOP, TSSOP28,.25针数:28
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:1.13
Samacsys Confidence:3Samacsys Status:Released
2D Presentation:https://componentsearchengine.com/2D/0T/757.1.1.pngSchematic Symbol:https://componentsearchengine.com/symbol.php?partID=757
PCB Footprint:https://componentsearchengine.com/footprint.php?partID=7573D View:https://componentsearchengine.com/viewer/3D.php?partID=757
Samacsys PartID:757Samacsys Image:https://componentsearchengine.com/Images/9/A3977SLPTR-T.jpg
Samacsys Thumbnail Image:https://componentsearchengine.com/Thumbnails/1/A3977SLPTR-T.jpgSamacsys Pin Count:29
Samacsys Part Category:Integrated CircuitSamacsys Package Category:Small Outline Packages
Samacsys Footprint Name:LP 28-pin TSSOPSamacsys Released Date:2015-07-02 00:00:00
Is Samacsys:N其他特性:ALSO REQUIRES A 8V TO 35V SUPPLY
模拟集成电路 - 其他类型:STEPPER MOTOR CONTROLLERJESD-30 代码:R-PDSO-G28
JESD-609代码:e3长度:9.7 mm
湿度敏感等级:2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:2.5 A
封装主体材料:PLASTIC/EPOXY封装代码:HTSSOP
封装等效代码:TSSOP28,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
电源:3.3/5,35 V认证状态:Not Qualified
座面最大高度:1.2 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:YES
技术:NMOS温度等级:OTHER
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40宽度:4.4 mm
Base Number Matches:1

A3977SLPTR-T 数据手册

 浏览型号A3977SLPTR-T的Datasheet PDF文件第2页浏览型号A3977SLPTR-T的Datasheet PDF文件第3页浏览型号A3977SLPTR-T的Datasheet PDF文件第4页浏览型号A3977SLPTR-T的Datasheet PDF文件第5页浏览型号A3977SLPTR-T的Datasheet PDF文件第6页浏览型号A3977SLPTR-T的Datasheet PDF文件第7页 
A3977  
Microstepping DMOS Driver with Translator  
Features and Benefits  
±2.5 A, 35 V output rating  
Description  
TheA3977isacompletemicrosteppingmotordriver,withbuilt-  
Low rDS(on) outputs, 0.45 Ω source, 0.36 Ω sink typical  
Automatic current decay mode detection/selection  
3.0 to 5.5 V logic supply voltage range  
Mixed, fast, and slow current decay modes  
Home output  
Synchronous rectification for low power dissipation  
Internal UVLO and thermal shutdown circuitry  
Crossover-current protection  
in translator. It is designed to operate bipolar stepper motors in  
full-, half-, quarter-, and eighth-step modes, with output drive  
capability of 35 V and ±2.5 A. The A3977 includes a fixed  
off-time current regulator that has the ability to operate in  
slow-,fast-,ormixed-decaymodes.Thiscurrent-decaycontrol  
scheme results in reduced audible motor noise, increased step  
accuracy, and reduced power dissipation.  
The translator is the key to the easy implementation of the  
A3977.SimplyinputtingonepulseontheSTEPinputdrivesthe  
motor one step (two logic inputs determine if it is a full-, half-,  
quarter-, or eighth-step). There are no phase-sequence tables,  
high-frequencycontrollines,orcomplexinterfacestoprogram.  
The A3977 interface is an ideal fit for applications where a  
complex microprocessor is unavailable or over-burdened.  
Packages:  
Package ED, 44-pin PLCC  
with internally fused pins  
Internalsynchronous-rectificationcontrolcircuitryisprovided  
to improve power dissipation during PWM operation.  
Internal circuit protection includes thermal shutdown with  
hysteresis,undervoltagelockout(UVLO)andcrossover-current  
protection. Special power-up sequencing is not required.  
Package LP, 28-pin TSSOP  
with exposed thermal pad  
The A3977 is supplied in a choice of two power packages, a  
44-pin plastic PLCC with 3 internally-fused pins on each of  
four sides (suffix ED), and a thin (<1.2 mm), 28-pin TSSOP  
with an exposed thermal pad (suffix LP). Both packages are  
lead (Pb) free, with 100% matte tin leadframe plating.  
Not to scale  
Pin-out Diagram  
4
3
2
1
41  
6
5
44  
43  
BB1  
42  
40  
V
NC  
NC  
NC  
7
8
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
CP  
CP  
2
PWM  
TIMER  
PFD  
1
9
RC1  
10  
VCP  
GND  
GND  
GND  
REF  
GND  
GND  
GND  
11  
12  
13  
14  
15  
16  
17  
REG  
V
REG  
÷8  
RC2  
STEP  
NC  
LOGIC  
SUPPLY  
VDD  
NC  
NC  
VBB2  
18  
21  
22  
23  
19  
20  
24  
25  
26  
27  
28  
Dwg. PP-075-1  
26184.22K  

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