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A3977KLP PDF预览

A3977KLP

更新时间: 2024-02-18 19:27:54
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
页数 文件大小 规格书
18页 564K
描述
MICROSTEPPING DMOS DRIVER WITH TRANSLATOR

A3977KLP 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

A3977KLP 数据手册

 浏览型号A3977KLP的Datasheet PDF文件第2页浏览型号A3977KLP的Datasheet PDF文件第3页浏览型号A3977KLP的Datasheet PDF文件第4页浏览型号A3977KLP的Datasheet PDF文件第5页浏览型号A3977KLP的Datasheet PDF文件第6页浏览型号A3977KLP的Datasheet PDF文件第7页 
3977  
MICROSTEPPING DMOS DRIVER  
WITH TRANSLATOR  
The A3977xED and A3977xLP are complete microstepping motor drivers  
with built-in translator. They are 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-, or mixed-decay modes. This current-  
decay control scheme results in reduced audible motor noise, increased step  
accuracy, and reduced power dissipation.  
A3977xED  
(PLCC)  
4
3
2
1
41  
6
5
44  
43  
BB1  
42  
40  
V
NC  
NC  
NC  
7
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
CP  
CP  
2
8
The translator is the key to the easy implementation of the A3977. By  
simply inputting one pulse on the STEP input the motor will take one step  
(full, half, quarter, or eighth depending on two logic inputs). There are no  
phase-sequence tables, high-frequency control lines, or complex interfaces to  
program. The A3977 interface is an ideal fit for applications where a complex  
µP is unavailable or over-burdened.  
PWM  
TIMER  
PFD  
1
9
RC  
1
10  
11  
12  
13  
14  
15  
16  
17  
VCP  
GND  
GND  
GND  
REF  
GND  
GND  
GND  
REG  
VREG  
÷8  
Internal synchronous-rectification control circuitry is provided to improve  
power dissipation during PWM operation.  
RC  
2
STEP  
NC  
LOGIC  
SUPPLY  
VDD  
NC  
NC  
Internal circuit protection includes thermal shutdown with hysteresis,  
under-voltage lockout (UVLO) and crossover-current protection. Special  
power-up sequencing is not required.  
V
BB2  
18  
21  
22  
23  
19  
20  
24  
25  
26  
27  
28  
Dwg. PP-075-1  
The A3977 is supplied in a choice of two power packages, a 44-pin  
plastic PLCC with copper batwing tabs (suffix ED), and a thin (<1.2 mm), 28-  
pin TSSOP with an exposed thermal pad (suffix LP). The SLP package is  
available in a lead-free version (100% matte tin leadframe).  
ABSOLUTE MAXIMUM RATINGS  
at TA = +25°C  
FEATURES  
±2.5 A, 35 V Output Rating  
Load Supply Voltage, VBB ............. 35 V  
*
Output Current, IOUT .................. ±2.5 A  
Logic Supply Voltage, VDD ........... 7.0 V  
Logic Input Voltage Range, VIN  
Low rDS(on) Outputs, 0.45 Source, 0.36 Sink Typical  
Automatic Current Decay Mode Detection/Selection  
3.0 V 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  
(tw >30 ns)..... -0.3 V to VDD + 0.3 V  
(tw <30 ns)........... -1 V to VDD + 1 V  
Sense Voltage, VSENSE ................. 0.5 V  
Reference Voltage, VREF ................ VDD  
Package Power Dissipation,  
PD................................. See page 3  
Operating Temperature Range, TA  
(A3977Kx)............ -40°C to +125°C  
(A3977Sx).............. -20°C to +85°C  
Junction Temperature, TJ ......... +150°C  
Storage Temperature Range,  
Always order by complete part number:  
Part Number  
Package  
TS ......................... -55°C to +150°C  
A3977KED  
A3977KLP  
A3977SED  
A3977SED-T  
A3977SLP  
A3977SLP-T  
44-pin PLCC  
* Output current rating may be limited by  
duty cycle, ambient temperature, and heat  
sinking. Under any set of conditions, do not  
exceed the specified current rating or a  
junction temperature of 150°C.  
28-pin TSSOP  
44-pin PLCC  
44-pin PLCC; Lead-free  
28-pin TSSOP  
28-pin TSSOP; Lead-free  

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