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A3251LUATL

更新时间： 2024-11-11 21:55:03
品牌 Logo 应用领域
急速微 - ALLEGRO 开关
页数 文件大小 规格书
15页 417K
描述
Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches

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中文翻译

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A3251LUATL 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：TO-92包装说明：,
针数：3Reach Compliance Code：compliant
HTS代码：8542.39.00.01风险等级：5.92
模拟集成电路 - 其他类型：ANALOG CIRCUITJESD-30 代码：R-PSSO-G3
JESD-609代码：e0长度：4.105 mm
功能数量：1端子数量：3
最高工作温度：150 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：240
认证状态：Not Qualified座面最大高度：1.57 mm
最大供电电压 (Vsup)：24 V最小供电电压 (Vsup)：4.2 V
标称供电电压 (Vsup)：12 V表面贴装：YES
温度等级：AUTOMOTIVE端子面层：TIN LEAD
端子形式：GULL WING端子节距：1.27 mm
端子位置：SINGLE处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3.035 mm

A3251LUATL 数据手册

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A3250 and A3251  
Field-Programmable, Chopper-Stabilized  
Unipolar Hall-Effect Switches  
The A3250 and A3251 are field-programmable, chopper-stabilized, unipolar Hall-  
effect switches designed for use in high-temperature applications. These devices  
use a chopper-stabilization technique to eliminate offset inherent in single-element  
devices.  
Package UA, 3-pin SIP  
The A3250 and A3251 are externally programmable devices. The devices have a  
wide range of programmability of the magnetic operate point (BOP) while the hys-  
teresis remains fixed. This advanced feature allows for optimization of the sensor  
switchpoint and can drastically reduce the effects of variations found in a produc-  
tion 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 mag-  
netic field with a flux density that exceeds the threshold for BOP, and switches  
HIGH when the field drops below the magnetic release point, BRP. The output of  
the A3251 has the opposite polarity, switching HIGH in a south-polarity magnetic  
TL Option  
field that BOP, and switching LOW when the field drops below BRP  
.
1
2
3
The other differences in the devices are the power-on state. The A3250 powers-on  
in the HIGH state, while the A3251 powers-on in the LOW state.  
1. VCC  
2. GND  
These devices are available in a TO-92 three-lead ultra-mini SIP (Single In-line  
Package), with either straight or formed and trimmed lead configuration.  
3. VOUT  
Features and Benefits  
ꢀChopper stabilization for stable switchpoints ꢀOn-chip protection against:  
throughout operating temperature range  
ABSOLUTE MAXIMUM RATINGS  
ꢀSupply transients  
ꢀExternally programmable operate point  
(through VCC pin)  
ꢀOutput short-circuits  
Supply Voltage, VCC ......................................26.5 V  
Reverse-Supply Voltage, VRCC ........................–18 V  
Zener Overvoltage, VZ.......................................30 V  
Output Current, IOUT .........................................20 mA  
Magnetic Flux Density, B .........................Unlimited  
Operating Temperature  
ꢀReverse-battery condition  
ꢀOn-board voltage regulator for 4.2 V to 24 V  
operation  
Use the following complete part numbers when ordering:  
VOUT  
Ambient, TA, Range J................. –40ºC to 115ºC  
Ambient, TA, Range L................–40ºC to 150ºC  
Maximum Junction, TJ(max)........................165ºC  
Storage Temperature, TS ..................–65ºC to 170ºC  
Bhys(typ)  
(G)  
TA  
(ºC)  
Part Number  
Package  
Power-On Running*  
A3250JUA  
Straight lead  
–40 to 115  
–40 to 150  
–40 to 115  
–40 to 150  
18  
13  
18  
13  
A3250JUATL Formed lead  
A3250LUA Straight lead  
A3250LUATL Formed lead  
A3251JUA Straight lead  
A3251JUATL Formed lead  
A3251LUA Straight lead  
A3251LUATL Formed lead  
High  
Low  
Low  
High  
*In south polarity magnetic field of sufficient strength.  
Allegro MicroSystems, Inc.  
115 Northeast Cutoff, Box 15036  
Worcester, Massachusetts 01615-0036 (508) 853-5000  
www.allegromicro.com  
A3250-DS  
1234567...15

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