A3250

更新时间： 2024-11-22 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

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

A3250 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

下载PDF

与A3250相关器件

型号	品牌	获取价格	描述	数据表
A3250_06	ALLEGRO	获取价格	Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches
A325051	ETC	获取价格
A325060	ETC	获取价格
A3250ELT	ALLEGRO	获取价格	Analog Circuit, 1 Func, PSSO3, TO-243AA, SOT-89, 3 PIN
A3250ELT-T	ALLEGRO	获取价格	Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches
A3250ELTTR	ALLEGRO	获取价格	暂无描述
A3250ELTTR-T	ALLEGRO	获取价格	Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches
A3250EUA	ALLEGRO	获取价格	Analog Circuit, 1 Func, PSIP3, SIP-3
A3250EUA-LC	ALLEGRO	获取价格	Analog Circuit, 1 Func, PSIP3, ULTRA MINI, SIP-3
A3250EUA-T	ALLEGRO	获取价格	Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches

与A3250相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

36
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

28
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

56
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

53

产品中心

服务支持

精选活动

关于我们

帮助中心

A3250

A3250 数据手册

与A3250相关器件

与A3250相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

A3250

A3250 数据手册

与A3250相关器件

与A3250相关文章

您还可以找

您在本页遇到什么问题？