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参数资料
| 型号： | A1140LUA |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 5/15页 |
| 文件大小： | 487K |
| 描述： | IC SWITCH HALL EFFECT UNI 3-SIP |
| 产品培训模块： | Current Sensor |
| 标准包装： | 500 |
| 传感范围： | 110G 跳闸，45G 释放 |
| 类型： | 单极开关 |
| 电源电压： | 3.5 V ~ 24 V |
| 电流 - 电源： | 5mA |
| 输出类型： | 数字式，开漏极 |
| 特点： | 稳压电压 |
| 工作温度： | -40°C ~ 150°C |
| 封装/外壳： | 3-SIP |
| 供应商设备封装： | 3-SIP |
| 包装： | 散装 |
Sensitive Two-Wire Chopper-Stabilized
Unipolar Hall Effect Switches
A1140, A1142, and
A1143
4
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
ELECTRICAL CHARACTERISTICS over the operating voltage and temperature ranges, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min. Typ. Max. Units
Supply Voltage
1
V
CC
3.5
24
V
Supply Current
2
I
CC(L)
B>B
OP
for A1140
2
5
mA
B>B
OP
for A1142; B
RP
for A1143
5
-
6.9 mA
I
CC(H)
B>B
OP
for A1143
B
RP
for A1140, A1142
12
-
17 mA
Reverse Supply Current
I
RCC
V
RCC
= 18 V
1.6 mA
Supply Zener Clamp Voltage V
ZSUPPLY
I
CC
= I
CC(L)(max)
+ 3 mA; T
A
= 25癈
28
40
V
Supply Zener Clamp Current I
ZSUPPLY
V
ZSUPPLY
= 28 V
I
CC(L)(max)
+ 3 mA
mA
Output Slew Rate
3
di/dt
Capacitance of the oscilloscope performing the
measurement = 20 pF
36
mA/約
Chopping Frequency
f
C
200
kHz
Power-On Time
3
t
on
C
BYPASS
= 0.01 糉
25
約
Power-On State
5,6
POS t < t
on
; V
CC
slew rate > 25 mV/約
HIGH
1
V
CC
represents the generated voltage between the VCC pin and the GND pin.
2
Relative values of B use the algebraic convention, where positive values indicate south magnetic polarity, and negative values indicate north magnetic
polarity; therefore greater B values indicate a stronger south polarity field (or a weaker north polarity field, if present).
3
Measured without bypass capacitor between VCC and GND. Use of a bypass capacitor results in slower current change.
3
Measured with and without bypass capacitor of 0.01 糉. Adding a larger bypass capacitor causes longer Power-On Time.
5
POS is defined as true only with a V
CC
slew rate of 25 mV / 約 or greater. Operation with a V
CC
slew rate less than 25 mV / 約 can permanently harm
device performance.
6
POS is undefined for t > t
on
or B
RP
< B < B
OP
.
MAGNETIC CHARACTERISTICS over the operating voltage and temperature ranges, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min. Typ.* Max. Units
Operate Point
B
OP
A1140, A1142 I
CC
= I
CC(L)
50
80 110 G
A1143
I
CC
= I
CC(H)
Release Point
B
RP
A1140, A1142 I
CC
= I
CC(H)
45
65 105 G
A1143
I
CC
= I
CC(L)
Hysteresis
B
HYS
B
HYS
= B
OP
B
RP
5
15
30
G
*Typical data are for initial design estimations only, and assume optimum manufacturing and application conditions, such as T
A
= 25癈 and V
CC
= 12 V.
Performance may vary for individual units, within the specified maximum and minimum limits.
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