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參數(shù)資料
| 型號： | A1384ELHLT-T |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | Programmable Linear Hall Effect Sensors with Analog Output Available in a Miniature Thin Profile Surface Mount Package |
| 中文描述： | 可編程線性霍爾與模擬輸出的微型超薄表面貼裝封裝效應(yīng)傳感器 |
| 文件頁數(shù)： | 11/18頁 |
| 文件大?。?/td> | 415K |
| 代理商： | A1384ELHLT-T |
Programmable Linear Hall Effect Sensors with Analog Output
Available in a Miniature Thin Profile Surface Mount Package
A1381, A1382,
A1383, and A1384
11
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
Programming Pulse Requirements, Protocol at T
A
= 25°C
Characteristic
Symbol
Notes
Min. Typ. Max. Units
Programming Voltage
V
P(LOW)
V
P(MID)
V
P(HIGH)
Measured at the VOUT pin.
-
-
5.5
V
14
15
16
V
26
27
28
V
Programming Current
I
P
Minimum supply current required to ensure proper fuse blowing. In addition, a min-
imum capacitance, C
BLOW
= 0.1
μ
F, must be connected between the VOUT and
GND pins during programming to provide the current necessary for fuse blowing.
300
-
-
mA
Pulse Width
t
OFF(HIGH)
t
OFF(MID)
t
ACTIVE(HIGH)
t
ACTIVE(MID)
t
BLOW
t
Pr
t
Pf
Duration at V
P(LOW)
level following a V
P(HIGH)
level.
Duration at V
P(LOW)
level following a V
P(MID)
level.
Duration of V
P(HIGH)
level for V
PH
pulses during key/code selection.
Duration of V
P(MID)
level for V
PH
pulses during key/code selection.
Duration at V
P(HIGH)
level for fuse blowing.
Rise time required for transitions from V
P(LOW)
to either V
P(MID)
or V
P(HIGH)
.
Fall time required for transitions from V
P(HIGH)
to either V
P(MID)
to V
P(LOW)
.
30
-
-
μ
s
5
-
-
μ
s
30
-
-
μ
s
15
-
-
μ
s
30
-
-
μ
s
Pulse Rise Time
1
-
100
μ
s
Pulse Fall Time
1
-
100
μ
s
Overview
Programming is accomplished by sending a series of input volt-
age pulses serially through the VOUT pin of the device. A unique
combination of different voltage level pulses controls the internal
programming logic of the device to select a desired program-
mable parameter and change its value. There are two program-
ming pulses, referred to as a
high
voltage pulse, V
PH
, consisting
of a V
P(LOW)
–V
P(HIGH)
–V
P(LOW)
sequence and a
mid
voltage
pulse, V
PM
, consisting of a V
P(LOW)
–V
P(MID)
–V
P(LOW)
sequence.
The 138x features Try mode, Blow mode, and Lock mode:
In Try mode, the value of a single programmable parameter may
be set and measured. The parameter value is stored temporar-
ily, and resets after cycling the supply voltage. Note that other
parameters cannot be accessed simultaneously in this mode.
In Blow mode, the value of a single programmable parameter
may be permanently set by blowing solid-state fuses internal to
the device. Additional parameters may be blown sequentially.
In Lock mode, a device-level fuse is blown, blocking the fur-
ther programming of all parameters.
The programming sequence is designed to help prevent the
device from being programmed accidentally; for example, as a
result of noise on the supply line.
Although any programmable variable power supply can be used
to generate the pulse waveforms, Allegro highly recommends
using the Allegro Sensor Evaluation Kit, available on the Allegro
Web site On-line Store. The manual for that kit is available for
download free of charge, and provides additional information on
programming these devices.
Definition of Terms
Register.
The section of the programming logic that controls the
choice of programmable modes and parameters.
Bit Field.
The internal fuses unique to each register, represented
as a binary number. Incrementing the bit field of a particular
register causes its programmable parameter to change, based on
the internal programming logic.
Key
. A series of V
PM
voltage pulses used to select a register, with
a value expressed as the decimal equivalent of the binary value.
The LSB of a register is denoted as key 1, or bit 0.
Code
. The number used to identify the combination of fuses
activated in a bit field, expressed as the decimal equivalent of the
binary value. The LSB of a bit field is denoted as code 1, or bit 0.
Addressing.
Incrementing the bit field code of a selected register
by serially applying a pulse train through the VOUT pin of the
device. Each parameter can be measured during the addressing
process, but the internal fuses must be blown before the program-
ming code (and parameter value) becomes permanent.
Fuse Blowing.
Applying a V
PH
voltage pulse of sufficient dura-
tion at the V
P(HIGH)
level to permanently set an addressed bit by
blowing a fuse internal to the device. Once a bit (fuse) has been
blown, it cannot be reset.
Blow Pulse.
A V
PH
voltage pulse of sufficient duration at the
V
P(HIGH)
level to blow the addressed fuse.
Cycling the Supply.
Powering-down, and then powering-up the
supply voltage. Cycling the supply is used to clear the program-
ming settings in Try mode.
Programming Guidelines
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PDF描述 |
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| A1384EUA-T | Programmable Linear Hall Effect Sensors with Analog Output Available in a Miniature Thin Profile Surface Mount Package |
| A1384EUATI-T | Programmable Linear Hall Effect Sensors with Analog Output Available in a Miniature Thin Profile Surface Mount Package |
| A1384LLHLT-T | Programmable Linear Hall Effect Sensors with Analog Output Available in a Miniature Thin Profile Surface Mount Package |
| A1384LUA-T | Programmable Linear Hall Effect Sensors with Analog Output Available in a Miniature Thin Profile Surface Mount Package |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| A1384ELHLX-T | 制造商:Allegro MicroSystems 功能描述:LIMITED FIELD PROGRAMMABLE LIN 制造商:ALLEGRO MICROSYSTEMS, LLC 功能描述:IC HALL EFFECT SENSOR SOT-23W |
| A1384EUA-LCT | 制造商:Allegro MicroSystems LLC 功能描述: |
| A1384EUA-T | 功能描述:IC SENSOR HALL EFFECT PREC 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:A138x 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 |
| A1384EUATI-T | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:Programmable Linear Hall Effect Sensors with Analog Output Available in a Miniature Thin Profile Surface Mount Package |
| A1384LLHLT-T | 功能描述:IC SENSOR HALL EFFECT SOT23-W 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:A138x 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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