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参数资料
| 型号： | A3423LK-T |
| 元件分类： | 磁阻传感器 |
| 英文描述： | MAGNETIC FIELD SENSOR-HALL EFFECT, -5.5-5.5mT, 500mV, RECTANGULAR, THROUGH HOLE MOUNT |
| 封装： | LEAD FREE, SIP-4 |
| 文件页数： | 3/9页 |
| 文件大小： | 258K |
| 代理商： | A3423LK-T |
Dual Channel Hall Effect Direction Detection Sensor IC
A3423
3
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
OPERATING CHARACTERISTICS
valid at TA = –40°C to 150°C, TJ ≤ TJ (max), through full operating air gap range, unless otherwise noted
Characteristics
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Electrical Characteristics
Supply Voltage
VCC
Operating, TJ ≤ 165°C
3.8
–
24
V
Output Leakage Current
IOFF
All outputs VOUT ≤ VCC(max)
–
<1
10
μA
Undervoltage Lockout
VCC(UV)
–
3.7
V
Undervoltage Hysteresis
VCC(hys)
Lockout (VCC(UV)) – Shutdown
–
0.4
–
V
Output Rise Time
tr
CLOAD = 20 pF, RLOAD = 1 kΩ
–
200
–
ns
Output Fall Time
tf
CLOAD = 20 pF, RLOAD = 1 kΩ
–
300
–
ns
Supply Current
ICC
3.4
8.2
14
mA
Low Output Voltage
Vsat
All outputs; IOUT = 15 mA; B > BOP(A), B > BOP(B)
–
210
500
mV
Output Current Limit
IOM
All outputs
30
–
60
mA
Speed Output Delay*
td
Delay between direction changing and speed
output transition
0.5
2.5
5
μs
Power-on Time
tON
B > BOP + 5 G
–
2
5
μs
Transient Protection Characteristics
Supply Zener Voltage
VZ(sup)
ICC = 17 mA, TA = 25°C
30
–
V
Output Zener Voltage
VZ(out)
IOUT = 3 mA, TA = 25°C
30
–
V
Supply Zener Current
IZ(sup)
Vsupply = 30 V, TA = 25°C
–
17
mA
Output Zener Current
IZ(out)
VOUT = 30 V, TA = 25°C
–
3
mA
Reverse Battery Current
IRCC
VRCC = –28 V, TA = 25°C
–
15
mA
Magnetic Characteristics
Operate Point (Channel A and Channel B)
BOP
B(A) > BOP(A), B(B) > BOP(B)
–35
15
55
G
Release Point (Channel A and Channel B)
BRP
B(A) < BOP(A), B(B) < BOP(B)
–55
–15
35
G
Hysteresis (Channel A and Channel B)
Bhys
BOP – BRP
10
30
60
G
Operate Symmetry
SYMOP(AB) BOP(A) – BOP(B)
–50
–
50
G
Release Symmetry
SYMRP(AB) BRP(A) – BRP(B)
–50
–
50
G
* Valid only after the first speed (SPD pin) signal transition. First speed signal transition has no delay.
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