参数资料
型号: A3953SLB-T
厂商: Allegro Microsystems Inc
文件页数: 4/12页
文件大小: 0K
描述: IC MOTOR DRIVER PWM FULL 16-SOIC
标准包装: 47
应用: PWM 电机驱动器
输出数: 1
电流 - 输出: ±1.3A
电压 - 负载: 3 V ~ 50 V
电源电压: 3 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: 管件
其它名称: 620-1066
A3953
Full-Bridge PWM Motor Driver
ELECTRICAL CHARACTERISTICS at T J = 25°C, V BB = 5 V to 50 V, V CC = 3.0 V to 5.5 V
(unless otherwise noted.)
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Power Outputs
Load Supply Voltage Range
Output Leakage Current
Sense Current Offset
V BB
I CEX
I SO
Operating, I OUT = ±1.3 A, L = 3 mH
V OUT = V BB
V OUT = 0 V
I SENSE - I OUT1 , I OUT = 850 mA,
V CC
22
<1.0
<-1.0
33
50
50
-50
38
V
μ A
μ A
mA
V SENSE = 0 V, V CC = 5 V
Output Saturation Voltage
V CE(SAT)
V SENSE = 0.4 V, V CC = 3.0 V:
BRAKE = H
(Forward/Reverse Mode)
Source Driver, I OUT = -0.85 A
Source Driver, I OUT = -1.3 A
Sink Driver, I OUT = 0.85 A
Sink Driver, I OUT = 1.3 A
1.0
1.7
0.4
1.1
1.1
1.9
0.5
1.3
V
V
V
V
Output Saturation Voltage
V CE(SAT)
V SENSE = 0.4 V, V CC = 3.0 V:
BRAKE = L
(Brake Mode)
Sink Driver, I OUT = 0.85 A
Sink Driver, I OUT = 1.3 A
1.0
1.3
1.2
1.5
V
V
Clamp Diode Forward Voltage
(Sink or Source)
V F
I F = 0.85 A
I F = 1.3 A
1.2
1.4
1.4
1.6
V
V
Continued next page…
TRUTH TABLE
BRAKE
H
H
H
H
H
H
L
L
ENABLE
H
H
L
L
L
L
X
X
PHASE
X
X
H
H
L
L
X
X
MODE
H
L
H
L
H
L
H
L
OUT A
Off
Off
H
H
L
L
L
L
OUT B
Off
Off
L
L
H
H
L
L
DESCRIPTION
Sleep Mode
Standby
Forward, Fast Current-Decay Mode
Forward, Slow Current-Decay Mode
Reverse, Fast Current-Decay Mode
Reverse, Slow Current-Decay Mode
Brake, Fast Current-Decay Mode
Brake, No Current Control
X = Irrelevant
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
3
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