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A3967SLBTR-T PDF预览

A3967SLBTR-T

更新时间: 2024-01-17 18:00:39
品牌 Logo 应用领域
急速微 - ALLEGRO 驱动器转换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
15页 443K
描述
Microstepping Driver with Translator

A3967SLBTR-T 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:SOP, SOP24,.4针数:24
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.36
模拟集成电路 - 其他类型:STEPPER MOTOR CONTROLLERJESD-30 代码:R-PDSO-G24
JESD-609代码:e3长度:15.4 mm
功能数量:1端子数量:24
最高工作温度:85 °C最低工作温度:-20 °C
最大输出电流:0.85 A封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP24,.4
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
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:2.65 mm
子类别:Motion Control Electronics最大供电电流 (Isup):65 mA
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
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:NOT SPECIFIED
宽度:7.5 mmBase Number Matches:1

A3967SLBTR-T 数据手册

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A3967  
Microstepping Driver with Translator  
Features and Benefits  
±750 mA, 30 V output rating  
Satlington® sink drivers  
Description  
TheA3967isacompletemicrosteppingmotordriverwithbuilt-  
in translator. It is designed to operate bipolar stepper motors in  
Automatic current-decay mode detection/selection  
3.0 to 5.5 V logic supply voltage range  
Mixed, fast, and slow current-decay modes  
Internal UVLO and thermal shutdown circuitry  
Crossover-current protection  
full-, half-, quarter-, and eighth-step modes, with output drive  
capability of 30 V and ±750 mA. The A3967 includes a fixed  
off-timecurrentregulatorthathastheabilitytooperateinslow,  
fast,ormixedcurrent-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  
A3967. By simply inputting one pulse on the STEP input the  
motorwilltakeonestep(full,half,quarter,oreighthdepending  
ontwologicinputs).Therearenophase-sequencetables, high-  
frequency control lines, or complex interfaces to program.The  
A3967interfaceisanidealfitforapplicationswhereacomplex  
μP is unavailable or over-burdened.  
Package: 24-pin SOIC with internally  
fused pins (suffix LB)  
Internal circuit protection includes thermal shutdown with  
hysteresis, under-voltage lockout (UVLO) and crossover-  
current protection. Special power-up sequencing is not  
required.  
The A3967 is supplied in a 24-pin SOIC, which is lead (Pb)  
free with 100% matte tin leadframe plating. Four pins are  
fused internally for enhanced thermal dissipation. The pins  
are at ground potential and need no insulation.  
Not to scale  
Functional Block Diagram  
LOGIC  
LOAD  
SUPPLY  
SUPPLY  
UVLO  
AND  
FAULT  
DETECT  
V
CC  
14  
1
REF.  
SUPPLY  
VBB1  
20  
REF  
÷8  
DAC  
SENSE  
+
-
RC1  
OUT1A  
OUT1B  
PWM LATCH  
BLANKING  
23  
16  
21  
MIXED DECAY  
PWM TIMER  
3
10  
11  
STEP  
DIR  
SENSE  
1
17  
5
RESET 22  
MS  
MS  
1
2
12  
13  
V
BB2  
3
SLEEP  
ENABLE 15  
PF  
V
OUT2A  
OUT2B  
9
4
24  
PWM TIMER  
PFD  
3
PWM LATCH  
BLANKING  
MIXED DECAY  
2
RC2  
+
-
SENSE  
2
DAC  
8
6
7
18 19  
Dwg. FP-050-3A  
26184.24H  

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