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A1223 Datasheet Preview

A1223 Datasheet

Chopper-Stabilized Precision Hall-Effect Latches

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A1223 pdf
A1220, A1221, A1222, and A1223
Chopper-Stabilized Precision Hall-Effect Latches
Features and Benefits
▪ 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
▪ Solid-state reliability
▪ Small package sizes
Packages:
Not to scale
3-pin SOT23W
(suffix LH)
(A1220
and 1221)
(A1222
and A1223)
3-pin SIP (suffix UA)
Description
The A1220, A1221, A1222, and A1223 Hall-effect sensor ICs
are extremely temperature-stable and stress-resistant devices
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. 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. A south pole of sufficient strength turns
the output on. A north pole of sufficient strength is necessary
to turn the output off.
An onboard 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.
Two package styles provide magnetically optimized packages
for most applications. Package type LH is a modified 3-pin
SOT23W surface-mount package, while UA is a three-pin
ultra-mini SIP for through-hole mounting. Both packages are
lead (Pb) free, with 100% matte-tin-plated leadframes.
Functional Block Diagram
VCC
Amp
Regulator
Low-Pass
Filter
To All Subcircuits
Control
Current Limit
VOUT
A1220-DS, Rev. 16
GND



Allegro
Allegro

A1223 Datasheet Preview

A1223 Datasheet

Chopper-Stabilized Precision Hall-Effect Latches

No Preview Available !

A1223 pdf
A1220, A1221,
A1222, and A1223
Chopper-Stabilized Precision Hall-Effect Latches
Selection Guide
Part Number
Packing1
Mounting
A1220ELHLX-T 13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount
A1220ELHLT-T2 7-in. reel, 3000 pieces/reel
3-pin SOT23W surface mount
A1220EUA-T
Bulk, 500 pieces/bag
3-pin SIP through hole
A1220LLHLX-T 13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount
A1220LLHLT-T2 7-in. reel, 3000 pieces/reel
3-pin SOT23W surface mount
A1220LUA-T
Bulk, 500 pieces/bag
3-pin SIP through hole
A1221ELHLX-T 13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount
A1221ELHLT-T2 7-in. reel, 3000 pieces/reel
3-pin SOT23W surface mount
A1221EUA-T
Bulk, 500 pieces/bag
3-pin SIP through hole
A1221LLHLX-T 13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount
A1221LLHLT-T2 7-in. reel, 3000 pieces/reel
3-pin SOT23W surface mount
A1221LUA-T
Bulk, 500 pieces/bag
3-pin SIP through hole
A1222ELHLT-T 7-in. reel, 3000 pieces/reel
3-pin SOT23W surface mount
A1222ELHLX-T2 13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount
A1222EUA-T
Bulk, 500 pieces/bag
3-pin SIP through hole
A1222LLHLT-T 7-in. reel, 3000 pieces/reel
3-pin SOT23W surface mount
A1222LLHLX-T2 13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount
A1222LUA-T
Bulk, 500 pieces/bag
3-pin SIP through hole
A1223ELHLT-T 7-in. reel, 3000 pieces/reel
3-pin SOT23W surface mount
A1223ELHLX-T2 13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount
A1223EUA-T
Bulk, 500 pieces/bag
3-pin SIP through hole
A1223LLHLT-T 7-in. reel, 3000 pieces/reel
3-pin SOT23W surface mount
A1223LLHLX-T2 13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount
A1223LUA-T
Bulk, 500 pieces/bag
3-pin SIP through hole
1Contact Allegro for additional packing options.
2Available through authorized Allegro distributors only.
Ambient, TA
–40ºC to 85ºC
–40ºC to 150ºC
BRP (Min)
–40
–40ºC to 85ºC
–40ºC to 150ºC
–90
–40ºC to 85ºC
–40ºC to 150ºC
–150
–40ºC to 85ºC
–40ºC to 150ºC
–180
BOP (Max)
40
90
150
180
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
2


Part Number A1223
Description Chopper-Stabilized Precision Hall-Effect Latches
Maker Allegro
Total Page 16 Pages
PDF Download
A1223 pdf
A1223 Datasheet PDF
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