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参数资料
| 型号： | A3955SLBTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 5/14页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR DRIVER PWM FULL 16-SOIC |
| 标准包装： | 1 |
| 应用： | 步进电机驱动器 |
| 输出数： | 1 |
| 电流 - 输出： | ±1.5A |
| 电压 - 负载： | 4.5 V ~ 50 V |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -20°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC W |
| 包装： | 标准包装 |
| 产品目录页面： | 1140 (CN2011-ZH PDF) |
| 其它名称： | 620-1134-6 |
A3955
Full-Bridge PWM Microstepping Motor Driver
ELECTRICAL CHARACTERISTICS (continued) at T A = 25°C, V BB = 5 V to 50 V, V CC = 4.5 V to
5.5 V (unless otherwise noted. )
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Control Circuitry
Logic Supply Voltage Range
Reference Voltage Range
UVLO Enable Threshold
UVLO Hysteresis
Logic Supply Current
Logic Input Voltage
Logic Input Current
Mixed-Decay Comparator
Trip Points
Mixed-Decay Comparator
V CC
V REF
I CC(ON)
I CC(OFF)
V IN(1)
V IN(0)
I IN(1)
I IN(0)
V PFD
V IO(PFD)
Operating
Operating
V CC = 0 → ? 5 V
D 0 = D 1 = D 2 = 0.8 V
V IN = 2.0 V
V IN = 0.8 V
Slow Current-Decay Mode
Mixed Current-Decay Mode
Fast Current-Decay Mode
4.5
0.5
3.35
0.30
—
—
2.0
—
—
—
3.5
1.1
—
—
5.0
—
3.70
0.45
42
12
—
—
<1.0
<-2.0
—
—
—
0
5.5
2.5
4.05
0.60
50
16
—
0.8
20
-200
—
3.1
0.8
±20
V
V
V
V
mA
mA
V
V
μ A
μ A
V
V
V
mV
Input Offset Voltage
Mixed-Decay Comparator
? V IO(PFD)
5.0
25
55
mV
Hysteresis
Reference Input Current
Reference Divider Ratio
Digital-to-Analog Converter
Accuracy*
Current-Sense Comparator
I REF
V REF /V S
—
V IO(S)
V REF = 0 V to 2.5 V
at trip, D 0 = D 1 = D 2 = 2 V
1.0 V < V REF 2.5 V
0.5 V < V REF 1.0 V
V REF = 0 V
—
—
—
—
—
—
3.0
—
—
—
±5.0
—
±3.0
±4.0
±5.0
μ A
—
%
%
mV
Input Offset Voltage*
Step Reference
Current Ratio
SRCR
D 0 = D 1 = D 2 = 0.8 V
D 0 = 2 V, D 1 = D 2 = 0.8 V
D 0 = 0.8 V, D 1 = 2 V, D 2 = 0.8 V
D 0 = D 1 = 2 V, D 2 = 0.8 V
D 0 = D 1 = 0.8 V, D 2 = 2 V
D 0 = 2 V, D 1 = 0.8 V, D 2 = 2 V
D 0 = 0.8 V, D 1 = D 2 = 2 V
D 0 = D 1 = D 2 = 2 V
—
—
—
—
—
—
—
—
0
19.5
38.2
55.5
70.7
83.1
92.4
100
—
—
—
—
—
—
—
—
%
%
%
%
%
%
%
%
Continued next page…
* The total error for the V REF /V S function is the sum of the D/A error and the current-sense comparator input offset voltage.
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
4
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| A3957SA | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:FULL-BRIDGE PWM MICROSTEPPING MOTOR DRIVER |
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| A3958SB | 功能描述:IC MOTOR DRIVER PWM FULL 24-DIP RoHS:否 类别:集成电路 (IC) >> PMIC - 电机和风扇控制器，驱动器 系列:- 标准包装:1 系列:- 应用:直流电机驱动器，步进电机驱动器 评估套件:- 输出数:1 或 2 电流 - 输出:750mA 电压 - 负载:10 V ~ 40 V 电源电压:4.5 V ~ 5.5 V 工作温度:-20°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-BFSOP（0.295"，7.50mm 宽） 供应商设备封装:24-SOP 包装:Digi-Reel® 其它名称:MTS62C19A-HS105DKR |
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