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參數(shù)資料
| 型號： | A3251LUA-T |
| 廠商： | Allegro Microsystems Inc |
| 文件頁數(shù)： | 2/16頁 |
| 文件大?。?/td> | 300K |
| 描述： | IC SW HALL EFFECT UNI 3-SIP |
| 標(biāo)準(zhǔn)包裝： | 500 |
| 傳感范圍： | 50G |
| 類型： | 單極開關(guān) |
| 電源電壓： | 4.2 V ~ 24 V |
| 電流 - 電源： | 10mA |
| 電流 - 輸出（最大）： | 20mA |
| 輸出類型： | 數(shù)字，開路集電極 |
| 特點： | 穩(wěn)壓電壓 |
| 工作溫度： | -40°C ~ 150°C |
| 封裝/外殼： | 3-SIP |
| 供應(yīng)商設(shè)備封裝： | 3-SIP |
| 包裝： | 散裝 |
Description
The A3250 and A3251 are field-programmable, chopper-
stabilized, unipolar Hall-effect switches designed for use in
high-temperature applications. These devices use a chop-
per-stabilization technique to eliminate offset inherent in
single-element devices.
The A3250 and A3251 are externally programmable
devices. The devices have a wide range of programmabil-
ity of the magnetic operate point (B
OP
) while the hysteresis
remains fixed. This advanced feature allows for optimiza-
tion of the device switchpoint and can drastically reduce
the effects of variations found in a production environment,
such as magnet and device placement tolerances.
These devices provide on-chip transient protection. A Zener
clamp on the power supply protects against overvoltage
conditions on the supply line. These devices also include
short-circuit protection on the output.
The output of the A3250 switches LOW when subjected
to a south-polarity magnetic field with a flux density that
exceeds the threshold for B
OP
, and switches HIGH when the
field drops below the magnetic release point, B
RP
. The out-
put of the A3251 has the opposite polarity, switching HIGH
in a south-polarity magnetic field that B
OP
, and switching
LOW when the field drops below B
RP
.
3250-DS Rev. 11
Features and Benefits
?Chopper stabilization for stable switchpoints throughout
operating temperature range
?Externally programmable operate point (through VCC pin)
?On-board voltage regulator for 4.2 V to 24 V operation
?On-chip protection against:
?Supply transients
?Output short-circuits
?Reverse-battery condition
Field-Programmable, Chopper-Stabilized
Unipolar Hall-Effect Switches
Continued on the next page&
Package: 3-pin SOT89 (suffix LT) and
3-pin SIP (suffix UA)
Functional Block Diagram
Not to scale
A3250 and A3251
Current Limit
Amp
Regulator
Program/Lock
Low-Pass
Filter
VCC
GND
Programming
Logic
Offset Adjust
VOUT
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| A3260LUA | IC SW HALL EFFECT BIPO 3-SIP |
| A3282LLHLT-T | IC SW HALL EFFECT CHOPPER SOT23W |
| A3340EUA-T | IC SW HALL EFFECT PREC 3-SIP |
| A3422LKA-T | IC SENSOR DIRECT/DETECT 5-SIP |
| AAH002-02 | SENSORS MAGNETIC FIELD 8SOIC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| A3251LUATL | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches |
| A325400284-200 | 制造商: 功能描述: 制造商:undefined 功能描述: |
| A32550-0009 | 功能描述:重負(fù)荷電源連接器 A32 SOCKET 50mm 50MMSKTCON RoHS:否 制造商:Hirose Connector 系列:PS2 產(chǎn)品類型:Connectors 位置/觸點數(shù)量: 端接類型:Crimp 觸點材料: 觸點電鍍:Gold 電壓額定值: 電流額定值:300 A 附件類型: |
| A32550-0049 | 功能描述:重負(fù)荷電源連接器 A32 SOCKET 50mm WITH 2 AUX/2 PILOT CONT RoHS:否 制造商:Hirose Connector 系列:PS2 產(chǎn)品類型:Connectors 位置/觸點數(shù)量: 端接類型:Crimp 觸點材料: 觸點電鍍:Gold 電壓額定值: 電流額定值:300 A 附件類型: |
| A32550-1009 | 功能描述:重負(fù)荷電源連接器 A32 SOCKET 50mm 50MMSKTCON RoHS:否 制造商:Hirose Connector 系列:PS2 產(chǎn)品類型:Connectors 位置/觸點數(shù)量: 端接類型:Crimp 觸點材料: 觸點電鍍:Gold 電壓額定值: 電流額定值:300 A 附件類型: |
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