A1204LUA-T Datasheet A1204ELHLT-T, A1204LLHLT-T, A1204EUA-T | P1-P3

A1201, A1202, A1203, A1204

Next-Generation Continuous-Time Bipolar Switch Family

Replacement Device Characteristics Table

Features and Benefits

Continuous-time operation

– Fast power-on time

– Low noise

Stable operation over full operating temperature

range

Reverse battery protection

Solid-state reliability

Factory-programmed at end-of-line for optimum

performance

Robust EMC performance

High ESD rating

Regulator stability without a bypass capacitor

Description

The Allegro A1201, A1202, A1203 and A1204 Hall-effect

bipolar switches are next-generation replacements and

extension of the popular Allegro A3134, A3133, and A3132

bipolar switch product line. The A1201 offers a 10 G

improvement in operate point, and the A1204 supports a

more extensive range of switchpoints. Overall, the A120x

family, produced with BiCMOS technology, consists of

Home / Products / Part Numbers / A1201, A1202, A1203, A1204

Device

A120x Characteristics

Hys

Legacy Replacement Min Max Min Max Min Max

A1201 A1205 -40 50 -50 40 5 55

A1204 A1203 - 95 -95 - 30 -

UGx3133 A1202 - 75 -75 - 30 -

UGx3132 A1203 - 95 -95 - 30 -

A3134 A1205 -40 50 -50 40 5 55

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continuous-time devices that feature fast power-on time and low-noise operation. Device programming is

performed after packaging, to ensure increased switchpoint accuracy by eliminating offsets that can be induced by

package stress. Unique Hall element geometries and low-offset amplifiers help to minimize noise and to reduce the

residual offset voltage normally caused by device overmolding, temperature excursions, and thermal stress.

The A120x Hall-effect bipolar switches include the following on a single silicon chip: voltage regulator, Hall-

voltage generator, small-signal amplifier, Schmitt trigger, and NMOS output transistor. The integrated voltage

regulator permits operation from 3.8 to 24 V. The extensive on-board protection circuitry makes possible a ±30 V

absolute maximum voltage rating for superior protection in automotive and motor commutation applications,

without adding external components. All devices in the family are identical, except for magnetic switchpoints.

The small geometries of the BiCMOS process allow these devices to be provided in ultrasmall packages. The

package styles available provide magnetically optimized solutions for most applications. Package LH is a SOT23W,

a miniature low-profile surface-mount package, while package UA is a three-lead ultramini SIP for through-hole

mounting. Each package is lead (Pb) free, with 100% matte tin plated leadframes.

Functional Block Diagram

Complete Part Numbers

Part Number

Package

Type

RoHS

Compliant

Part Composition/

RoHS Data

Temperature

Comments Samples

Distributo

A1201ELHLT-T

3-lead SOT

Yes

view data

-40 °C to 85 °C

last-time

buy

samples not available

Check

A1201EUA-T

3-pin SIP

Yes

view data -40 °C to 85 °C

last-time

buy

samples not available

Check

A1201LLHLT-T

3-lead SOT

Yes

view data -40 °C to 150 °C

last-time

buy

samples not available

Check

A1201LUA-T

3-pin SIP

Yes

view data -40 °C to 150 °C

last-time

buy

samples not available

Check

A1202ELHLT-T

3-lead SOT

Yes

view data

-40 °C to 85 °C

not for new

design

samples not available

Check

A1202EUA-T

3-pin SIP

Yes

view data

-40 °C to 85 °C

not for new

design

samples not available

Check

A1202LLHLT-T

3-lead SOT

Yes

view data -40 °C to 150 °C

Request Sample Check

A1202LUA-T

3-pin SIP

Yes

view data -40 °C to 150 °C

Request Sample Check

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Allegro's products are not to be used in life support devices or systems, if a failure of an Allegro product

can reasonably be expected to cause the failure of that life support device or system, or to affect the safety

or effectiveness of that device or system.

Phone: 1.508.853.5000 • Fax: 1.508.853.7895

A1203ELHLT-T

3-lead SOT

Yes view data -40 °C to 85 °C

Request Sample Check

A1203EUA-T

3-pin SIP

Yes view data -40 °C to 85 °C

Request Sample Check

A1203LLHLT-T

3-lead SOT

Yes

view data

-40 °C to 150 °C

Request Sample Check

A1203LUA-T

3-pin SIP

Yes

view data

-40 °C to 150 °C

Request Sample Check

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P1-P3

A1204LUA-T

Mfr. #:

Buy A1204LUA-T

Manufacturer:

Description:

MAGNETIC SWITCH LATCH 3SIP

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

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A1204LUA-T

A1204LUA-T

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