A3251JUATL

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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技术参数
数据手册

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A3251JUATL 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：	3	Reach 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 CIRCUIT	JESD-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：	115 °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：	INDUSTRIAL	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	Base Number Matches：	1

A3251JUATL 数据手册

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 (B_OP) 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 B_OP, and switches

HIGH when the field drops below the magnetic release point, B_RP. The output of

the A3251 has the opposite polarity, switching HIGH in a south-polarity magnetic

TL Option

field that B_OP, and switching LOW when the field drops below B_RP

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, V_CC......................................26.5 V

Reverse-Supply Voltage, V_RCC........................–18 V

Zener Overvoltage, V_Z.......................................30 V

Output Current, I_OUT.........................................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:

V_OUT

Ambient, T_A, Range J................. –40ºC to 115ºC

Ambient, T_A, Range L................–40ºC to 150ºC

Maximum Junction, T_J(max)........................165ºC

Storage Temperature, T_S..................–65ºC to 170ºC

B_hys(typ)

(G)

T_A

(ºC)

Part Number

Package

Power-On Running*

A3250JUA

Straight lead

–40 to 115

–40 to 150

–40 to 115

–40 to 150

A3250JUATL Formed lead

A3250LUA Straight lead

A3250LUATL Formed lead

A3251JUA Straight lead

A3251JUATL Formed lead

A3251LUA Straight lead

A3251LUATL Formed lead

High

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

12 3 4 5 6 7...15

中文翻译

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与A3251JUATL相关器件

型号	品牌	获取价格	描述	数据表
A3251JUA-TL	ALLEGRO	获取价格	SPECIALTY ANALOG CIRCUIT, PSSO3, SMT-3
A3251JUA-TS	ALLEGRO	获取价格	Analog Circuit, 1 Func, PSSO3, SMT-3
A3251LLT	SANKEN	获取价格	Analog Circuit, 1 Func, PSSO3, MINIATURE, TO-243AA, SOT-89, 3 PIN
A3251LLT-T	ALLEGRO	获取价格	Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches
A3251LLTTR	ALLEGRO	获取价格	Analog Circuit, 1 Func, PSSO3, TO-243AA, SOT-89, 3 PIN
A3251LLTTR-T	ALLEGRO	获取价格	Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches
A3251LUA	ALLEGRO	获取价格	Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches
A3251LUA	SANKEN	获取价格	Analog Circuit, 1 Func, PSIP3, ULTRA MINI, SIP-3
A3251LUA-T	ALLEGRO	获取价格	Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches
A3251LUATL	ALLEGRO	获取价格	Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches

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