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A1120ELHLT-T

IC SWITCH UNIPOLAR 3V SOT23W

Product Category: Magnetic Sensors - Switches
Mfr. Part #
A1120ELHLT-T
Manufacturer: Allegro MicroSystems
Package: SOT-23W
Lead Free Status /RoHS Status:
Data Sheet: A1120ELHLT-T Datasheet
Inventory: In Stock

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Mfr. Part #: A1120ELHLT-T

Specifications
Product Details

Specifications

Manufacturer Allegro MicroSystems

Product Category Magnetic Sensors - Switches

Series Automotive, AEC-Q100

Packaging Alternate Packaging

Package-Case SOT-23W

Technology Hall Effect

Operating-Temperature -40Â°C ~ 85Â°C (TA)

Output-Type Open Drain

Features -

Function Unipolar Switch

Voltage-Supply 3 V ~ 24 V

Supplier-Device-Package SOT-23W

Supply Current 4mA

Current-Output-Max 25mA

Test-Condition -40Â°C ~ 85Â°C

Polarization South Pole

Sensing-Range 5mT Trip, 0.5mT Release

Product Details

Description

The A1120, A1121, A1122, A1123, and A1125 Hall-effect unipolar switches are extremely temperature-stable and stress-resistant sensor ICs, especially suited for operation over extended temperature ranges to 150°C. Superior hightemperature performance is made possible through dynamic offset cancellation, which reduces the residual offset voltage normally caused by device overmolding, temperature dependencies, and thermal stress.

Each device includes on a single silicon chip a voltage regulator, Hall-voltage generator, small-signal amplifier, chopper stabilization, Schmitt trigger, and a short-circuit protected open-drain output to sink up to 25 mA.

An on-board regulator permits operation with supply voltages of 3 to 24 V. The advantage of operating down to 3 V is that the device can be used in 3 V applications or with additional external resistance in series with the supply pin for greater protection against high-voltage transient events.

For the A1120, A1121, A1122, and A1123, a south pole of sufficient strength turns the output on. Removal of the magnetic field turns the output off. The A1125 is complementary, in that for these devices, a south pole turns the A1125 output off, and removal of the magnetic field turns the output on.

Two package styles provide a magnetically optimized package for most applications. Package type LH is a modified SOT23W, surface mount package, while UA is a three-lead ultra-mini SIP for through-hole mounting. Each package type is lead (Pb) free (suffix, –T), with a 100% matte-tin-plated leadframe.

Features

â–ª AEC-Q100 automotive qualified
â–ª Unipolar switchpoints
â–ª Resistant to physical stress
â–ª Superior temperature stability
â–ª Output short-circuit protection
â–ª Operation from unregulated supply
â–ª Reverse-battery protection
â–ª Solid-state reliability
â–ª Small package sizes

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Mfr. Part #: A1120ELHLT-T