A3185ELT

更新时间： 2024-11-04 22:18:07

品牌	Logo	应用领域
急速微 - ALLEGRO		锁存器
页数	文件大小	规格书
8页	182K
描述
HALL-EFFECT LATCHES FOR HIGH-TEMPERATURE OPERATION

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A3185ELT 数据手册

3185 THRU

3189

HALL-EFFECT LATCHES

FOR HIGH-TEMPERATURE OPERATION

These Hall-effect latches are extremely temperature-stable and stress-

resistant sensors especially suited for operation over extended temperature

ranges to +150°C. Superior high-temperature performance is made possible

through a novel Schmitt trigger circuit that maintains operate and release

point symmetry by compensating for temperature changes in the Hall ele-

ment. Additionally, internal compensation provides magnetic switch points

that become more sensitive with temperature, hence offsetting the usual

degradation of the magnetic field with temperature. The symmetry capability

makes these devices ideal for use in pulse-counting applications where duty

cycle is an important parameter. The four basic devices (3185, 3187, 3188,

and 3189) are identical except for magnetic switch points.

Each device includes on a single silicon chip a voltage regulator, qua-

dratic Hall-voltage generator, temperature compensation circuit, signal

amplifier, Schmitt trigger, and a buffered open-collector output to sink up to

25 mA. The on-board regulator permits operation with supply voltages of 3.8

to 24 volts.

The first character of the part number suffix determines the device

operating temperature range. Suffix ‘E–’ is for -40°C to +85°C, and suffix

‘L–’ is for -40°C to +150°C. Three package styles provide a magnetically

optimized package for most applications. Suffix ‘–LT’ is a miniature SOT-

89/TO-243AA transistor package for surface-mount applications; suffix ‘–U’

is a three-lead plastic mini-SIP, while suffix ‘–UA’ is a three-lead ultra-mini-

SIP.

Dwg. PH-003A

Pinning is shown viewed from branded side.

ABSOLUTE MAXIMUM RATINGS

at T = +25°C

FEATURES

I Symmetrical Switch Points

I Superior Temperature Stability

I Operation From Unregulated Supply

I Open-Collector 25 mA Output

I Reverse Battery Protection

Supply Voltage, V_CC............................ 30 V

Reverse Battery Voltage, V_RCC........... -30 V

Magnetic Flux Density, B ........... Unlimited

Output OFF Voltage, V_OUT.................. 30 V

Reverse Output Voltage, V_OUT.......... -0.5 V

Continuous Output Current, I_OUT..... 25 mA

Operating Temperature Range, T_A

I Activate With Small, Commercially Available Permanent Magnets

I Solid-State Reliability

I Small Size

Suffix ‘E–’................... -40°C to +85°C

Suffix ‘L–’................. -40°C to +150°C

Storage Temperature Range,

I Resistant to Physical Stress

Always order by complete part number: the prefix ‘A’ + the basic four-digit

part number + a suffix to indicate operating temperature range +

a suffix to indicate package style, e.g., A3185ELT .

T_S............................... -65°C to +170°C

12 3 4 5 6 7 8

中文翻译

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A3185ELT 替代型号

型号	品牌	替代类型	描述	数据表
A1225LLTTR-T	SANKEN	功能相似	Analog Circuit
A3185LLT	ALLEGRO	功能相似	HALL-EFFECT LATCHES FOR HIGH-TEMPERATURE OPERATION

与A3185ELT相关器件

型号	品牌	获取价格	描述	数据表
A3185ELTTR	ALLEGRO	获取价格	Analog Circuit, 1 Func, PDSO3, TO-243AA, SOT-89, 3 PIN
A3185EU	ETC	获取价格	Hall-Effect Switch
A3185EUA	ALLEGRO	获取价格	HALL-EFFECT LATCHES FOR HIGH-TEMPERATURE OPERATION
A3185EUA	SANKEN	获取价格	Analog Circuit, 1 Func, PSIP3, ULTRA MINI, SIP-3
A3185EUA-TL	SANKEN	获取价格	Analog Circuit, 1 Func, PSSO3, ULTRA MINI, SMT-3
A3185EUA-TL	ALLEGRO	获取价格	Analog Circuit, 1 Func, PSSO3, SMT-3
A3185KLL	ETC	获取价格	Hall-Effect Switch
A3185KLT	ETC	获取价格	Hall-Effect Switch
A3185KU	ETC	获取价格	Hall-Effect Switch
A3185KUA	ETC	获取价格	Hall-Effect Switch

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