A1423 データシートの表示（PDF） - Allegro MicroSystems

部品番号

コンポーネント説明

メーカー

A1423

High Precision Hall Effect AC-Coupled Differential Sensor IC with Integrated Filter Capacitor

Allegro MicroSystems 

A1421, A1422,

and A1423

High Precision Hall Effect AC-Coupled Differential

Sensor IC with Integrated Filter Capacitor

Description (continued)

Each device includes: a voltage regulator, two Hall transduc-

ers, temperature compensating circuitry, a low-level ampli-

fier, bandpass filter, Schmitt trigger, and an output driver. The

on-board regulator permits operation with supply voltages from

4.0 to 26.5 V. The output stage can switch 20 mA over the full

frequency response range of the device, and is compatible with

CMOS logic circuits.

The devices in this family differ from each other in their

switchpoint specifications and their switching polarity. The

A1421 has a small hysteresis and asymmetrical switchpoints,

with one switchpoint at the zero-crossing. The A1422 has a small

hysteresis and symmetrical switchpoints, both near the zero-

crossing. The A1423 offers high vibration immunity, by means

of its larger hysteresis that establishes symmetrical switchpoints

Continued on the next page…

Product Selection Guide

Part Number

Output Switching

at BDIFF = 0

BDiff

Increasing

BDiff

Decreasing

A1421LK-T

Low (On) to High (Off) to

High (Off)

Low (On)

A1422LK-T

High (Off) to

Low (On)

Low (On) to

High (Off)

A1423LK-T

High (Off) to

Low (On)

Low (On) to

High (Off)

*Contact Allegro for additional packing options.

Switchpoints

Symmetry

BOP(typ)

(G)

BRP(typ)

(G)

BOP(max)+

BRP(min)

(G)

BOP(typ)+

BRP(typ)

(G)

BOP(min)+

BRP(max)

(G)

15

0

15

15

7.5

15

–15

0

0

0

65

–65

0

0

0

Packing*

Bulk, 500

pieces/bag

Absolute Maximum Ratings

Characteristic

Supply Voltage

Reverse Supply Voltage

Output Current

Reverse-Output Current

Operating Ambient Temperature

Maximum Junction Temperature

Storage Temperature

Symbol

VCC

VRCC

IOUT

IROUT

TA

TJ(max)

Tstg

Notes

Refer to Power Derating section

Range L

Rating

28

–18

25

–50

–40 to 150

165

–65 to 170

Units

V

V

mA

mA

ºC

ºC

ºC

Pin-out Diagram

1 2 34

Terminal List Table

Number

Name

1

VCC

2

VOUT

3

TEST

4

GND

Allegro MicroSystems, Inc.

2

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

Share Link: