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參數(shù)資料
| 型號(hào)： | A1324LLHLX-T |
| 元件分類： | 磁阻傳感器 |
| 英文描述： | MAGNETIC FIELD SENSOR-HALL EFFECT, RECTANGULAR, SURFACE MOUNT |
| 封裝： | 3 X 2 MM, 1 MM HEIGHT, LEAD FREE, SOT-23W, 3 PIN |
| 文件頁數(shù)： | 6/11頁 |
| 文件大?。?/td> | 277K |
| 代理商： | A1324LLHLX-T |
Linear Hall Effect Sensor ICs with Analog Output
A1324, A1325,
and A1326
4
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Power-On Time
When the supply is ramped to its operating
voltage, the device output requires a finite time to react to an
input magnetic field. Power-On Time is defined as the time it
takes for the output voltage to begin responding to an applied
magnetic field after the power supply has reached its minimum
specified operating voltage, VCC(min).
V
+t
VCC
VCC(min.)
VOUT
90% VOUT
0
t1= time at which power supply reaches
minimum specified operating voltage
t2= time at which output voltage settles
within ±10% of its steady state value
under an applied magnetic field
t1
t2
tPO
VCC(typ.)
Quiescent Voltage Output
In the quiescent state (that is, with
no significant magnetic field: B = 0), the output, VOUT(Q), equals
a ratio of the supply voltage, VCC, throughout the entire operat-
ing range of VCC and the ambient temperature, TA.
Quiescent Voltage Output Drift Through Temperature
Range
Due to internal component tolerances and thermal con-
siderations, the quiescent voltage output, VOUT(Q), may drift from
its nominal value through the operating ambient temperature
range, TA. For purposes of specification, the Quiescent Voltage
Output Drift Through Temperature Range, VOUT(Q) (mV), is
defined as:
VOUT(Q) VOUT(Q)TA – VOUT(Q)25°C
=
(1)
Sensitivity
The presence of a south-polarity magnetic field
perpendicular to the branded surface of the package increases the
output voltage from its quiescent value toward the supply voltage
rail. The amount of the output voltage increase is proportional
to the magnitude of the magnetic field applied. Conversely, the
application of a north polarity field will decrease the output volt-
age from its quiescent value. This proportionality is specified
as the magnetic sensitivity, Sens (mV/G), of the device and is
defined as:
VOUT(B+) – VOUT(B–)
B(+) – B(–)
Sens =
(2)
where B(+) and B(–) are two magnetic fields with opposite
polarities.
Sensitivity Temperature Coefficient
The device sensitivity
changes with temperature, with respect to its sensitivity tem-
perature coefficient, TCSENS. TCSENS is programmed at 150°C,
and calculated relative to the nominal sensitivity programming
temperature of 25°C. TCSENS (%/°C) is defined as:
SensT2 – SensT1
SensT1
T2–T1
1
TCSens =
×100%
(3)
where T1 is the nominal Sens programming temperature of 25°C,
and T2 is the TCSENS programming temperature of 150°C.
The ideal value of sensitivity through the temperature range,
SensIDEAL(TA), is defined as:
SensT1 × (100% + TCSENS(TA –T1) )
SensIDEAL(TA) =
(4)
Sensitivity Drift Through Temperature Range
Second
order sensitivity temperature coefficient effects cause the mag-
netic sensitivity to drift from its ideal value through the operating
ambient temperature, TA. For purposes of specification, the sensi-
tivity drift through temperature range, SensTC, is defined as:
SensTA – SensIDEAL(TA)
SensIDEAL(TA)
SensTC =
×100% (5)
Sensitivity Drift Due to Package Hysteresis
Package
stress and relaxation can cause the device sensitivity at TA = 25°C
to change during or after temperature cycling. This change in
sensitivity follows a hysteresis curve.
For purposes of specification, the Sensitivity Drift Due to Pack-
age Hysteresis, SensPKG, is defined as:
Sens(25°C)2 – Sens(25°C)1
Sens(25°C)1
SensPKG =
×100%
(6)
where Sens(25°C)1 is the programmed value of sensitivity at
Characteristic Definitions
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|---|---|
| A1324LUA-T | 功能描述:IC HALL EFFECT SENSOR 3-SIP RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應(yīng)，數(shù)字式開關(guān)，線性，羅盤 (IC) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉(zhuǎn) 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數(shù)字式，PWM，8.5 位串行 特點(diǎn):可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
| A1324LUA-T2 | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:Low Noise, Linear Hall Effect Sensor ICs with Analog Output |
| A1325 | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:Low Noise, Linear Hall Effect Sensor ICs with Analog Output |
| A13251-000 | 制造商:TE Connectivity 功能描述:D-584-1224-90/9 |
| A1325LLHLT-T | 功能描述:IC SENSOR HALL EFFECT SOT23W RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應(yīng)，數(shù)字式開關(guān)，線性，羅盤 (IC) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉(zhuǎn) 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數(shù)字式，PWM，8.5 位串行 特點(diǎn):可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
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