参数资料
型号: A4970GLBTR-T
厂商: Allegro Microsystems Inc
文件页数: 4/9页
文件大小: 0K
描述: IC PWM MOTOR DVR FULL 24-SOICW
特色产品: A4970 Motor Driver IC
标准包装: 1
应用: 直流电机驱动器,PWM 电机驱动器,步进电机驱动器
输出数: 1 或 2
电流 - 输出: 750mA
电压 - 负载: 7.45 V ~ 45 V
电源电压: 4.75 V ~ 5.25 V
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 24-SOIC(0.295",7.50mm 宽)
供应商设备封装: 24-SOIC W
包装: 标准包装
其它名称: 620-1436-6
A4970
Dual Full-Bridge Motor Driver
ELECTRICAL CHARACTERISTICS Valid at T A = 25°C, T J ≤ 150°C, V BB = 45 V, V CC = 4.75 to 5.25 V, V REF = 5.0 V,
unless otherwise noted
Characteristics
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
Output Drivers (OUTA or OUTB)
Motor Supply Range
V BB
7.45
45
V
Output Leakage Current
Output MOSFET On Resistance
Clamp Diode Leakage Current
Clamp Diode Forward Voltage
Driver Supply Current
I CEX
R DS(on)
I R
V F
I BB(ON)
I BB(OFF)
I0 = I1 = 2.4 V, V OUT = 45.0 V
V OUT = 0.0 V
Sink Driver, I OUT = 750 mA
Source Driver, I OUT = –750 mA
V R = 45 V
I F = 750 mA
Both bridges on, I0 = I1 = 0.8 V, no load
Both bridges off, I0 = I1 = 2.4 V, no load
< 1.0
< –1.0
0.3
1.0
< 1.0
0.95
5
3
50
–50
0.75
1.85
50
2
10
7.5
μ A
μ A
Ω
Ω
μ A
V
mA
mA
Control Logic
Input Voltage
Input Current
Reference Voltage Range
Reference Input Current
Current Limit Threshold
Thermal Shutdown Temperature
Total Logic Supply Current
Fixed Off-Time
V CC Undervoltage Lockout (UVLO)
Threshold
V CC Undervoltage Lockout (UVLO)
Threshold
V IN(1)
V IN(0)
I IN(1)
V REF
I REF
V REF /
V SENSE
T J
I CC(ON)
I CC(OFF)
t off
V CCUVLO
V CCUVLOHYS
All inputs
All inputs
V IN = 2.4 V
V IN = 0.8 V
Operating
V REF = 7.5 V
I0 = I1 = 0.8 V
I0 = 2.4 V, I1 = 0.8 V
I0 = 0.8 V, I1 = 2.4 V
I0 = I1 = 0.8 V, no load
I0 = I1 = 2.4 V, no load
R T = 56 k Ω , C T = 820 pF
V CC rising
2.4
1.5
9.5
13.5
25.5
42
<1.0
– 3.0
10
15
30
170
3.0
3.5
46
4
200
0.8
20
–200
7.5
150
10.5
16.5
34.5
7.5
7.5
50
V
V
μ A
μ A
V
μ A
°C
mA
mA
μ s
V
mV
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
4
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