Datasheet > 3161

3161

更新时间： 2024-11-08 22:13:15

品牌	Logo	应用领域
急速微 - ALLEGRO		开关
页数	文件大小	规格书
8页	169K
描述
HALL-EFFECT SWITCH FOR 2-WIRE APPLICATIONS

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3161 数据手册

3161

HALL-EFFECT SWITCH

FOR 2-WIRE APPLICATIONS

This Hall-effect switch is a monolithic integrated circuit designed to

operate continuously over extended temperatures to +85°C. The unipo-

lar switching characteristic makes this device ideal for use with a simple

bar or rod magnet. The A3161ELT and A3161EUA are identical except

for package.

Each device includes a voltage regulator for operation with supply

voltages of 3.5 to 25 volts, reverse battery protection diode, quadratic

Hall-voltage generator, temperature compensation circuitry, small-signal

amplifier, Schmitt trigger, and a constant-current open-collector output.

Noise radiation is limited by control of the output current slew rate.

Two 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 ‘UA’ is a three-

lead ultra-mini SIP for through-hole mounting.

Dwg. PH-003-3

FEATURES and BENEFITS

Pinning is shown viewed from branded side.

I Internal Current Regulator for 2-Wire Operation

I Output Slew Rate Controlled

I 3.5 V to 25 V Operation … Needs Only An Unregulated Supply

I Reverse Battery Protection

I Excellent Temp. Stability

I Activate with Small, Commercially Available Permanent Magnets

I Small Size

ABSOLUTE MAXIMUM RATINGS

at T = +25°C

Supply Voltage, V_CC

Continuous................................. 28 V

Surge (t_w≤ 100 ms) .................... 40 V

Reverse Battery Voltage, V_RCC

I Solid-State Reliability … No Moving Parts

I Resistant to Physical Stress

Continuous................................ -25 V

Surge (t_w≤ 100 ms) ................... -40 V

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

Output OFF Voltage, V_OUT.............. 28 V

Operating Temperature Range,

T_A............................. -40°C to +85°C

Storage Temperature Range,

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

Always order by complete part number, e.g., A3161ELT .

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