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參數資料
| 型號： | A3245LLHLT-T |
| 廠商： | Allegro Microsystems Inc |
| 文件頁數： | 4/13頁 |
| 文件大小： | 506K |
| 描述： | IC SW HALL EFFECT OMNI SOT23W |
| 產品培訓模塊： | Current Sensor |
| 標準包裝： | 3,000 |
| 傳感范圍： | ±55G 跳閘，±6G 釋放 |
| 類型： | 全極開關 |
| 電源電壓： | 3.6 V ~ 24 V |
| 電流 - 電源： | 3.5mA |
| 輸出類型： | 數字式，開漏極 |
| 特點： | 穩壓電壓 |
| 工作溫度： | -40°C ~ 150°C |
| 封裝/外殼： | SOT-23W |
| 供應商設備封裝： | SOT-23W |
| 包裝： | 帶卷 (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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