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參數(shù)資料
| 型號： | A1185 |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switches |
| 中文描述： | 超靈敏雙線現(xiàn)場可編程斬波穩(wěn)定單極霍爾效應(yīng)開關(guān) |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 318K |
| 代理商： | A1185 |
A1185 and A1186
A1185-DS, Rev. 1
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
AB SO LUTE MAX MUM RAT NGS
Supply Voltage, V
CC
..........................................
28 V
Reverse-Supply Voltage, V
RCC
........................
–18 V
Magnetic Flux Density, B.........................
Unlimited
Operating Temperature
Ambient, T
A
, Range E..................
–40oC to 85oC
Ambient, T
A
, Range L................
–40oC to 150oC
Maximum Junction, T
J(max)
........................
165oC
Storage Temperature, T
S
..................
–65oC to 170oC
On-chip protection
y
Supply transient protection
y
Reverse-battery protection
y
On-board voltage regulator
y
3.5 V to 24 V operation
Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized
Unipolar Hall-Effect Switches
Package LH, 3-pin SOT
Features and Benefits
1. VCC
2. No connection
3. GND
NC
1
2
3
1
2
3
1. VCC
2. GND
3. GND
Package UA, 3-pin SIP
Chopper stabilization
y
Low switchpoint drift over operating
temperature range
y
Low stress sensitivity
Field-programmable for optimized
switchpoints
The A1185 and A1186 are ultrasensitive, two-wire, unipolar Hall effect switches.
The operate point, B
OP
, can be field-programmed, after final packaging of the sen-
sor and placement into the application. This advanced feature allows the optimiza-
tion of the sensor switching performance, by effectively accounting for variations
caused by mounting tolerances for the device and the target magnet.
This family of devices are produced on the Allegro MicroSystems new DABIC5
BiCMOS wafer fabrication process, which implements a patented, high-frequency,
chopper-stabilization technique that achieves magnetic stability and eliminates
the offsets that are inherent in single-element devices exposed to harsh applica-
tion environments. Commonly found in a number of automotive applications,
the A1185 and A1186 devices are utilized to sense: seat track position, seat belt
buckle presence, hood/trunk latching, and shift selector position.
Two-wire unipolar switches are particularly advantageous in price-sensitive appli-
cations, because they require one less wire than the more traditional open-collec-
tor output switches. Additionally, the system designer gains inherent diagnostics
because output current normally flows in either of two narrowly-specified ranges.
This provides distinct current ranges for I
OUT(H)
and I
OUT(L)
. Any output current
level outside of these two ranges is a fault condition.
Other features of the A1185 and A1186 devices include on-chip transient protec-
tion and a Zener clamp on the power supply to protect against overvoltage condi-
tions on the supply line.
The output current of the A1186 switches
HIGH
in the presence of a south polarity
magnetic field of sufficient strength; and switches
LOW
otherwise, including when
there is no significant magnetic field present. The A1185 has an inverted output
current level: switching
LOW
in the presence of a south polarity magnetic field of
sufficient strength, and
HIGH
otherwise.
Both devices are offered in two package styles: LH, a SOT-23W miniature low-
profile package for surface-mount applications, and UA, a three-lead ultramini
Single Inline Package (SIP) for through-hole mounting. Each package is available
in a lead (Pb) free version (suffix,
–T
) with 100% matte tin plated leadframe.
Factory-programmed versions are also available. Refer to: A1145 and A1146.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| A1185EUA-T | Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switches |
| A1185LLHLT-T | Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switches |
| A1185LUA | RES MF 24.3K OHM 1%0.250W@ 70C 100PPM/TC AXL |
| A1185LUA-T | Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switches |
| A1186 | Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switches |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| A118-5 | 制造商:APEM 功能描述: |
| A1185_06 | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switches |
| A1185B | 制造商:HAKKO Corporation 功能描述: |
| A1185ELHLT | 功能描述:IC SWITCH HALL EFFECT UNI SOT-23 RoHS:否 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:- 標準包裝: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: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 |
| A1185ELHLT-T | 功能描述:IC SWITCH HALL EFFECT UNI SOT-23 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:- 標準包裝: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: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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