A1101EUA-T Allegro, A1101EUA-T Datasheet

A1101EUA-T

Manufacturer Part Number

A1101EUA-T

Description

Manufacturer

Allegro

Datasheets

1.A1101EUA-T.pdf (12 pages)

2.A1101EUA-T.pdf (11 pages)

3.A1101EUA-T.pdf (11 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

A1101EUA-T

Manufacturer:

ALLEGRO

Quantity:

3 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

A1101EUA-T

Manufacturer:

ALLEGRO/雅丽高

Quantity:

20 000

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Features and Benefits

▪ Continuous-time operation

▪ Stable operation over full operating temperature range

▪ Reverse battery protection

▪ Solid-state reliability

▪ Factory-programmed at end-of-line for optimum

▪ Robust EMC performance

▪ High ESD rating

▪ Regulator stability without a bypass capacitor

Packages: 3 pin SOT23W (suffix LH), and

3 pin SIP (suffix UA)

Not to scale

A1101-DS, Rev. 3

performance

▫ Fast power-on time

▫ Low noise

VCC

Regulator

Functional Block Diagram

A1101, A1102, A1103, A1104, and A1106

Gain

Amp

To all subcircuits

Continuous-Time Switch Family

Control

Trim

Description

The Allegro

are next generation replacements for the popular Allegro

312x and 314x lines of unipolar switches. The A110x family,

produced with BiCMOS technology, consists of 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 A1101-A1104 and A1106 Hall-effect 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 industrial motor commutation applications, without adding

Continued on the next page…

Offset

A1101-A1104 and A1106 Hall-effect switches

GND

VOUT

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