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A3291KLHLT-T The Allegro MicroSystems A3291KLHLT-T is a Hall-effect latch sensor IC. It operates over a wide temperature range and features an open-drain output.
Mfr Part #:

A3291KLHLT-T

Available from 1 distributors
Mfr Name: Allegro Microsystems
Allegro Microsystems
The Allegro MicroSystems A3291KLHLT-T is a Hall-effect latch sensor IC. It operates over a wide temperature range and features an open-drain output.
✓ Total Stock: 24,000 pcs
$ Price Range: $1.50

A3291KLHLT-T Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
24,000 pcs
On Request
24000 pcs On Request 1 On Request On Request On Request On Request On Request
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A3291KLHLT-T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Function
Mounting Type
Operating Temperature
Operating Voltage
Output Type
Polarization
Sensing Range
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Tape & Reel
Technology
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A3291KLHLT-T Description

Short technical summary and product information.

The Allegro MicroSystems A3291KLHLT-T is a Hall-effect latch designed for consumer and industrial applications. It offers superior temperature stability and resistance to physical stress, making it suitable for extended temperature ranges up to 125°C.

 

This device integrates a voltage regulator, Hall voltage generator, amplifier, chopper stabilization, and a Schmitt trigger on a single silicon chip. It features an open-drain output capable of sinking up to 25 mA and requires a south polarity magnetic field to turn on and a north polarity field to turn off. The operating supply voltage range is from 3 V to 24 V.

 

The A3291KLHLT-T comes in a miniature SOT-23W surface-mount package. Both packages are lead-free with 100% matte-tin leadframe plating, ensuring compliance with environmental standards.

 

Key features include symmetrical switchpoints, output short-circuit protection, and reverse battery protection, contributing to solid-state reliability. Its small package size makes it ideal for space-constrained designs.

A3291KLHLT-T Quick Information

Product Type: Hall-Effect Latch
Canonical Name: A3291KLHLT-T Hall-Effect Latch
Subcategory: Latch

A3291KLHLT-T Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Lead (Pb) free with 100% matte-tin leadframe plating

A3291KLHLT-T Estimated Pricing

Qty Low High
1+ $1.50 $1.50

Estimated market price range - modelled values for guidance only, not live distributor offers.

A3291KLHLT-T Features

  • Extremely temperature-stable sensor IC.
  • Resistant to physical stress.
  • Operates from 3V to 24V supply.
  • Open-drain output sinks up to 25 mA.
  • Miniature SOT-23W surface-mount package.

A3291KLHLT-T Applications

  • Used in industrial motor applications.
  • Suitable for commutation sensing.
  • Ideal for BLDC motor control.
  • Applicable for fan motor sensing.

A3291KLHLT-T FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating temperature range for the A3291KLHLT-T?

The operating temperature range is -40°C to 125°C (TA).

What is the supply voltage range for this Hall-effect latch?

The device operates with supply voltages in the range of 3 V to 24 V.

What type of package is the A3291KLHLT-T in?

The A3291KLHLT-T is available in a miniature SOT-23W surface-mount package.

Is the A3291KLHLT-T RoHS compliant?

Yes, the RoHS status is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for this part?

The Moisture Sensitivity Level (MSL) is 1 Unlimited.

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