参数资料
型号: A4973SLBTR-T
厂商: Allegro Microsystems Inc
文件页数: 3/11页
文件大小: 0K
描述: IC PWM MOTOR DVR FULL 16SOIC
特色产品: A4973 Motor Driver
标准包装: 1
应用: 直流电机驱动器,PWM 电机驱动器
输出数: 1
电流 - 输出: 1.5A
电压 - 负载: 5 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: 标准包装
其它名称: 620-1438-6
A4973
Full-Bridge PWM Motor Driver
ELECTRICAL CHARACTERISTICS at T J = 25°C, V CC = 3.0 V to 5.5 V (unless otherwise noted.)
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
Power Outputs
Load Supply Voltage Range
Output Leakage Current
Output On Resistance
V BB
I CEX
R DS(on)
Operating
V OUT = V BB
V OUT = 0 V
Total sink and source, I OUT = 1.5 A, V BB > 8 V, T J = 25°C
5
<1.0
<–1.0
1
50
50
–50
1.4
V
μ A
μ A
Ω
AC Timing
PWM RC Fixed Off-time
PWM Minimum On Time
Crossover Dead Time
Maximum PWM Frequency
t OFF RC
t ON(min)
t CODT
f PWM(max)
C T = 680 pF, R T = 30 k Ω , V CC = 3.3 V
V CC = 3.3 V, R T ≥ 12 k Ω , C T = 680 pF
V CC = 5.0 V, R T ≥ 12 k Ω , C T = 470 pF
I OUT = 1.5 A
18.3
0.8
0.8
70
20.4
1.4
1.6
500
22.5
1.9
2.0
μ s
μ s
μ s
ns
kHz
Control Circuitry
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
UVLO Enable Threshold
UVLO Hysteresis
T J
? T J
2.5
0.12
165
15
2.75
0.17
3.0
0.25
°C
°C
V
V
Logic Supply Current
Motor Supply Current (No Load)
Logic Supply Voltage Range
Logic Input Voltage
Logic Input Current
Reference Input Current
Comparator Input Offset Volt.
Reference Input Voltage Range
Gain
I CC(ON)
I CC(Sleep)
I BB(ON)
I BB(Sleep)
V CC
V IN(1)
V IN(0)
I IN(1)
I IN(0)
I REF
V IO
V REF
V ENABLE = V IN(0) , V BRAKE = V IN(1)
V ENABLE = V MODE = V BRAKE = V IN(1)
V ENABLE = V IN(0)
V ENABLE = V MODE = V BRAKE = V IN(1)
Operating
V IN = V CC = 5 V
V IN = 0 V, V CC = 5 V
V REF = 0 V to 1 V
V REF = 0 V
REF Pin
V REF = 1 V
3.0
V CC ×
0.55
0
1.9
2.7
250
500
<1.0
5.0
0
–106
±2.0
2
3.5
450
700
3
5.5
V CC ×
0.27
–10
–200
±5.0
±5.0
1
2.1
mA
μ A
μ A
μ A
V
V
V
μ A
μ A
μ A
mV
V
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
3
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