A1185LLHLT-T

更新时间： 2024-11-14 22:47:15

品牌	Logo	应用领域
急速微 - ALLEGRO		模拟IC 开关信号电路光电二极管信息通信管理
页数	文件大小	规格书
14页	318K
描述
Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switches

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A1185LLHLT-T 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
零件包装代码：	SOT-23	包装说明：	LEAD FREE, MINIATURE, SOT-23W, 3 PIN
针数：	3	Reach Compliance Code：	unknown
HTS代码：	8542.39.00.01	风险等级：	5.83
Is Samacsys：	N	模拟集成电路 - 其他类型：	ANALOG CIRCUIT
JESD-30 代码：	R-PDSO-G3	JESD-609代码：	e3
长度：	2.98 mm	湿度敏感等级：	1
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	封装代码：	TSSOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	260	认证状态：	Not Qualified
座面最大高度：	1.13 mm	最大供电电压 (Vsup)：	24 V
最小供电电压 (Vsup)：	3.5 V	标称供电电压 (Vsup)：	5 V
表面贴装：	YES	技术：	BICMOS
温度等级：	AUTOMOTIVE	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	0.95 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	40
宽度：	1.91 mm	Base Number Matches：	1

A1185LLHLT-T 数据手册

A1185 and A1186

Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized

Unipolar Hall-Effect Switches

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-

Package LH, 3-pin SOT

tion of the sensor switching performance, by effectively accounting for variations

caused by mounting tolerances for the device and the target magnet.

1. VCC

2. No connection

3. GND

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.

Package UA, 3-pin SIP

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.

1. VCC

2. GND

3. GND

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.

ABSOLUTE MAXIMUM RATINGS

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

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.

Features and Benefits

ꢀChopper stabilization

ꢀOn-chip protection

ꢀLow switchpoint drift over operating

temperature range

ꢀSupply transient protection

ꢀReverse-battery protection

ꢀOn-board voltage regulator

ꢀ3.5 V to 24 V operation

ꢀLow stress sensitivity

ꢀField-programmable for optimized

switchpoints

Allegro MicroSystems, Inc.

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

www.allegromicro.com

A1185-DS, Rev. 1

12 3 4 5 6 7...14

中文翻译

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A1185LLHLT-T 替代型号

型号	品牌	替代类型	描述	数据表
A1185LLHLT	ALLEGRO	完全替代	Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switche

与A1185LLHLT-T相关器件

型号	品牌	获取价格	描述	数据表
A1185LUA	ALLEGRO	获取价格	Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switche
A1185LUA-T	ALLEGRO	获取价格	Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switche
A1186	ALLEGRO	获取价格	Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switche
A1186ELHLT	ALLEGRO	获取价格	Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switche
A1186ELHLT-T	ALLEGRO	获取价格	Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switche
A1186EUA	ALLEGRO	获取价格	Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switche
A1186EUA-T	ALLEGRO	获取价格	Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switche
A1186LLH	ALLEGRO	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO3, SOT-23W, 3 PIN
A1186LLHLT	ALLEGRO	获取价格	Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switche
A1186LLHLT-T	ALLEGRO	获取价格	Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switche

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