A3163EUA-LC View Datasheet(PDF) - Allegro MicroSystems

Part Name

Description

Manufacturer

A3163EUA-LC

HALL-EFFECT SWITCH FOR 2-WIRE APPLICATIONS

Allegro MicroSystems 

Suffix 'UA' Pinning

(ultra-mini SIP)

1

2

3

3163

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 A3163ELT and A3163EUA are identical except

for package.

Each device includes a voltage regulator for operation with supply

voltages of 3.5 to 24 volts, reverse-battery protection, quadratic Hall-

voltage generator for low offset, temperature compensation circuitry,

small-signal amplifier, Schmitt trigger, and a constant-current open-

collector output, wired internally for true 2-wire operation. 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 SOT89/TO-243AA transis-

tor package for surface-mount applications; suffix ‘UA’ is a three-lead

ultra-mini SIP for through-hole mounting; it is also available with lead

forming for surface-mount applications (suffix 'UA-TL').

Dwg. PH-003-7A

Pinning is shown viewed from branded side.

ABSOLUTE MAXIMUM RATINGS

at TA = +25°C

Supply Voltage, VCC ................ 26.5 V

Reverse Battery Voltage, VRCC .... -16 V

Magnetic Flux Density, B ..... Unlimited

Package Power Dissipation, PD See Graph

Junction Temperature, TJ ....... +170°C

Operating Temperature Range,

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

Storage Temperature Range,

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

FEATURES and BENEFITS

s Internal Current Regulator for 2-Wire Operation

s Output Slew Rate Controlled

s 3.5 V to 24 V Operation … Needs Only An Unregulated Supply

s Reverse Battery Protection

s Excellent Temperature Stability

s Activate with Small, Commercially Available Permanent Magnets

s Small Size

s Solid-State Reliability … No Moving Parts

s Resistant to Physical Stress

Always order by complete part number, e.g., A3163ELT .

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