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A3260 Datasheet(PDF) 2 Page - Allegro MicroSystems

Part No. A3260
Description  2-Wire Chopper Stabilized Precision Hall Effect Bipolar Switch
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Maker  ALLEGRO [Allegro MicroSystems]
Homepage  http://www.allegromicro.com
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A3260 Datasheet(HTML) 2 Page - Allegro MicroSystems

 
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The A3260-- Hall-effect bipolar switch is an extremely
temperature-stable and stress-resistant sensor especially suited for
operation over extended temperature ranges to +150°C. Superior
high-temperature performance is made possible through dynamic
offset cancellation, which reduces the residual offset voltage normally
caused by device overmolding, temperature dependencies, and thermal
stress.
The device includes on a single silicon chip a voltage regulator,
Hall-voltage generator, small-signal amplifier, chopper stabilization,
Schmitt trigger, and a constant-current open-collector output. A south
pole of sufficient strength will turn the output OFF. An on-board
regulator permits operation with supply voltages of 3.5 to 24 volts.
Noise radiation is limited by control of the output current slew rate.
The first character of the part number suffix determines the device
operating temperature range; suffix ‘E–’ is -40°C to +85°C and ‘L–’ is
-40°C to +150°C. Two package styles provide a magnetically opti-
mized package for most applications. Suffix ‘–LH’ is a miniature
SOT23W low-profile surface-mount package, while suffix ‘–UA’ is a
three-lead ultra-mini-SIP for through-hole mounting.
FEATURES
■ Internal Current Regulator for 2-Wire Operation
■ Output Slew Rate Controlled
■ Resistant to Physical Stress
■ Superior Temperature Stability
■ Operation From Unregulated Supply
■ Reverse Battery Protection
■ Solid-State Reliability
■ Small Size
3260
2-WIRE, CHOPPER-STABILIZED,
PRECISION HALL-EFFECT BIPOLAR SWITCH
Suffix Code 'LH' Pinning
(SOT23W)
Supply Voltage, VCC ........................... 27 V
Reverse Battery Voltage, VRCC .......... -16 V
Magnetic Flux Density, B ........... Unlimited
Package Power Dissipation, PD . See Graph
Junction Temperature, TJ ............... +165°C
Operating Temperature Range, TA
Suffix ‘E–’ .................. -40°C to +85°C
Suffix ‘L–’ ................ -40°C to +150°C
Storage Temperature Range,
TS .............................. -65°C to +170°C
ABSOLUTE MAXIMUM RATINGS
at TA=+25°C
Pinning is shown viewed from branded side.
NC
X
12
3
Dwg. PH-003-5


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