参数资料
型号: A3245LLHLT-T
厂商: Allegro Microsystems Inc
文件页数: 4/13页
文件大小: 506K
描述: IC SW HALL EFFECT OMNI SOT23W
产品培训模块: Current Sensor
标准包装: 3,000
传感范围: ±55G 跳闸,±6G 释放
类型: 全极开关
电源电压: 3.6 V ~ 24 V
电流 - 电源: 3.5mA
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: SOT-23W
供应商设备封装: SOT-23W
包装: 带卷 (TR)
Chopper-Stabilized Omnipolar Hall Effect Switches
A3245
3
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
OPERATING CHARACTERISTICS valid over full operating voltage and ambient temperature ranges, unless otherwise noted
Characteristic
Symbol
Test Conditions
Min.  Typ.  Max.  Units
Electrical Characteristics
Supply Voltage
1
V
CC
Operating, T
J
 < 165癈
3.6        24    V
Output Leakage Current
I
OUTOFF
V
OUT
 = 24 V, B < B
RP
        10   糀
Output On Voltage
V
OUT(SAT)
I
OUT
 = 20 mA, B > B
OP
        500   mV
Output Current Limit
I
OM
B > B
OP
30        60   mA
Power-On Time
t
PO
V
CC
 > V
CC(MIN)
        50    約
Chopping Frequency
f
c
    200       kHz
Output Rise Time
2
t
r
R
LOAD
 = 820 ? C
S
  = 20 pF
        1    約
Output Fall Time
2
t
f
R
LOAD
 = 820 ? C
S
  = 20 pF
        1    約
Supply Current
I
CCON
B > B
OP
    1.5   3.5   mA
I
CCOFF
B < B
RP
    1.5   3.5   mA
Reverse Battery Current
I
RCC
V
RCC
 = 18 V
        2   mA
Supply Zener Clamp Voltage    V
ZSupply
I
CC
 = 6.5 mA; T
A
 = 25癈
28            V
Supply Zener Current
3
I
ZSupply
V
S
 = 28 V
        6.5   mA
Magnetic Characteristics
4
Operate Point
B
OPS
South pole adjacent to branded face of device
15    38    55    G
B
OPN
North pole adjacent to branded face of device
55   38   15   G
Release Point
B
RPS
South pole adjacent to branded face of device
5    20    50    G
B
RPN
North pole adjacent to branded face of device
50   20   5    G
Hysteresis
B
HYS
|B
OPX
 B
RPX
|
 
5    18    30    G
1
 Maximum voltage must be adjusted for power dissipation and junction temperature, see Power Derating section.
2
 C
S
 = oscilloscope probe capacitance.
3
 Maximum current limit is equal to the maximum I
CC(MAX)
 + 3 mA.
4
 Magnetic  ux density, B, is indicated as a negative value for north-polarity magnetic  elds, and as a positive value for south-polarity magnetic  elds.
This so-called algebraic convention supports arithmetic comparison of north and south polarity values, where the relative strength of the  eld is indicated
by the absolute value of B, and the sign indicates the polarity of the  eld (for example, a 100 G  eld and a 100 G  eld have equivalent strength, but
opposite polarity).
DEVICE QUALIFICATION PROGRAM
Contact Allegro for information.
EMC (Electromagnetic Compatibility) REQUIREMENTS
Contact Allegro for information.
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