A1221LUA-T Allegro Microsystems, Bipolar Hall Effect Sensor, 3-Pin SIP

Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): PH
Product Details

A1220/1/2/3 Chopper Stabilised Hall Effect Latches, Allegro Microsystems

The Allegro Microsystems A1220, A1221, A1222, and A1223 Hall-effect Latches include a voltage regulator, Hall voltage generator, small-signal amplifier, chopper stabilisation and Schmitt trigger. They are also short circuit protected open-drain output to sink up to 25 mA.

A south pole turns on the output and a north pole turns off the output.

The voltage regulator permits operation with supply voltages of 3 V to 24 V.

Available in two package styles; 3-pin SOT23W for surface-mounting and a three-pin ultra-mini SIP for through-hole mounting.

AEC-Q100 automotive qualified
Symmetrical latch switchpoints
Resistant to physical stress
Superior temperature stability
Output short circuit protection
Operation from unregulated supply down to 3 V
Reverse battery protection

Hall Effect Sensors, Allegro MicroSystems

Specifications
Attribute Value
Magnetic Type Bipolar
Mounting Type Through Hole
Pin Count 3
Minimum Magnetic Sensor Release Point -90 Gs
Maximum Magnetic Sensor Operating Point 90 Gs
Minimum Operating Supply Voltage 3 V
Maximum Operating Supply Voltage 24 V
Length 4.09mm
Width 1.52mm
Height 3.02mm
Dimensions 4.09 x 1.52 x 3.02mm
Minimum Operating Temperature -40 °C
Maximum Operating Temperature +150 °C
Package Type SIP
Typical Magnetic Sensor Hysteresis 100 Gs
Available to back order for despatch 06/05/2020
Price Each (In a Bag of 500)
£ 0.86
(exc. VAT)
£ 1.03
(inc. VAT)
Units
Per unit
Per Bag*
500 +
£0.86
£430.00
*price indicative
Related Products
Allegro’s diverse selection of speed sensor ICs provide ...
Description:
Allegro’s diverse selection of speed sensor ICs provide optimized solutions for many non-automotive applications where speed or speed and direction information are needed. These sensor ICs can handle designs using various target geometries, materials, and sensing orientations. Allegro’s portfolio of speed sensor ICs contains solutions able to address requirements for ...
The Allegro A1101/2/3/4 and A1106 Hall-effect switches are ...
Description:
The Allegro A1101/2/3/4 and A1106 Hall-effect switches are produced with BiCMOS technology enabling fast power-on time and low-noise operation. Device programming is performed after packaging, to ensure increased switch-point accuracy by eliminating offsets that could be induced by package stress.Unique Hall element geometries and low offset amplifiers minimise noise and ...
The Allegro Microsystems A3213/4 ultra-sensitive, pole independent Hall-effect ...
Description:
The Allegro Microsystems A3213/4 ultra-sensitive, pole independent Hall-effect switches with a latched digital output are aimed at use in battery-operated, portable equipment. Their 2.4 V to 5.5 V operation and a unique clocking scheme reduces the average operating power use. The A3213 to 825 μW and the A3214 to 14 ...
The Allegro Microsystems A1120, A1121, A1122, A1123, and ...
Description:
The Allegro Microsystems A1120, A1121, A1122, A1123, and A1125 Hall-effect, unipolar switches are temperature-stable and stress-resistant sensor ICs. High temperature performance is made possible through dynamic offset cancellation, which reduces the residual offset voltage normally caused by device over-molding, temperature dependencies, and thermal stress.They include a voltage regulator, Hall-voltage generator, ...