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| 型号： | A3906SESTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 4/10页 |
| 文件大小： | 0K |
| 描述： | IC DVR DC/STEP MOTOR DUAL 20-QFN |
| 标准包装： | 1 |
| 应用： | 直流电机驱动器，步进电机驱动器 |
| 输出数： | 2/1 |
| 电流 - 输出： | ± 1A |
| 电源电压： | 2.5 V ~ 9 V |
| 工作温度： | -20°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-WFQFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN 裸露焊盘（4x4） |
| 包装： | 标准包装 |
| 产品目录页面： | 1140 (CN2011-ZH PDF) |
| 其它名称： | 620-1288-6 |
A3906
Low Voltage Stepper and Single/Dual DC Motor Driver
ELECTRICAL CHARACTERISTICS 1,2 valid at T A = 25°C and V BB = 2.5 to 9 V, unless otherwise noted
Characteristics
Operating Voltage Range
VBB Supply Current
Output Resistance
Current Trip Sense Voltage
Clamp Diode Voltage
Output Leakage Current
Symbol
V BB
I BB
R DS(on)
V SENSE
V f
I DSS
Test Conditions
I OUT = 0 mA, PWM = 50 kHz, Duty Cycle = 50%
I OUT = 0 mA, outputs disabled, V BB = 9.6 V
Sleep mode, V IN < 0.4 V
Source driver, I OUT = 400 mA , V BB = 3 V, T J = 25°C
Source driver, I OUT = 400 mA , V BB = 3 V, T J = 85°C
Sink driver, I OUT = 400 mA, V BB = 3 V, T J = 25°C
Sink driver, I OUT = 400 mA, V BB = 3 V, T J = 85°C
FLx falling edge
I = 400 mA
Outputs, V OUT = 9 V
Min.
2.5
–
–
–
–
–
–
–
160
–
–20
Typ.
–
5
3
150
0.52
0.78
0.62
0.93
200
–
–
Max.
9
–
–
500
0.60
–
0.74
–
240
1
20
Units
V
mA
mA
nA
Ω
Ω
Ω
Ω
mV
V
μ A
Control Logic
Logic Input Voltage
V IN(1)
V IN(0)
2.0
–
–
–
5.5
0.8
V
V
Logic Input Current
Input Hysteresis
ˉSˉ ˉLˉ ˉEˉ ˉEˉ ˉPˉ Input
Fault Output
Fault Output Leakage Current
Fault Output Timer
Blank Time
Fixed Off-Time
Propagation Delay Time
I IN(1)
I IN(0)
V INhys
V SLEEP(0)
V SLEEP(1)
V FLx
I FLx
t FLx
t BLANK
t OFF
t pd(on)
t pd(off)
V IN = 5.5 V
V IN = 0.8 V
Flag asserted, I FLx = 1 mA
V FLx = 5 V
Reset of PWM latch
Input high to source on, input low to source off
Input low to sink off, input high to sink on
–
–
–
–
2
–
–
–
2.1
–
100
50
<100
<–100
150
–
–
–
–
300
3
30
235
100
500
–500
–
0.4
–
200
1
–
3.9
–
350
200
nA
nA
mV
V
V
mV
μ A
μ s
μ s
μ s
ns
ns
Protection Circuitry
Crossover Delay
t COD
200
425
650
ns
VBB Undervoltage Lockout Threshold
VBB Undervoltage Lockout Hysteresis
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
V BBUVLO
V BBUVHYS
T JTSD
T JTSDHYS
V BB rising
2.2
200
–
–
2.31
300
165
15
2.45
400
–
–
V
mV
°C
°C
1 For
input and output current specifications, negative current is defined as coming out of (sourcing) the specified device pin.
2 Specifications over the operating temperature range are assured by design and characterization.
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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