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| A3163 Datasheet, PDF (1/10 Pages) Allegro MicroSystems – HALL-EFFECT SWITCH FOR 2-WIRE APPLICATIONS | |||
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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 âLTâ is a miniature SOT89/TO-243AA transis-
tor package for surface-mount applications; suffix âUAâ 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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