A3425LK ALLEGRO [Allegro MicroSystems], A3425LK Datasheet

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A3425LK

Manufacturer Part Number
A3425LK
Description
DUAL, CHOPPER-STABILIZED, ULTRA-SENSITIVE, BIPOLAR HALL-EFFECT SWITCH
Manufacturer
ALLEGRO [Allegro MicroSystems]
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
A3425LK
Manufacturer:
3U
Quantity:
118
Part Number:
A3425LK-T
Manufacturer:
ALLEGRO
Quantity:
2 100
V
CC
1
DUAL, CHOPPER-STABILIZED, ULTRA-SENSITIVE,
2
3
-40 C to +150 C
-65 C to +170 C
Dwg. PH-017
See Graph
Unlimited
4
100 mA
+170 C
-50 mA
30 mA
26.5 V
-18 V
V
CC
3425
digital-encoder systems in the harsh environments of automotive or
industrial applications
hurdles encountered in fine-pitch direction-detection applications,
namely maintaining accurate mechanical location between the two active
Hall elements. Here, the two Hall elements are photolithographically
aligned to better than 1 m, as contrasted with 100 m or worse me-
chanical location tolerance when manufactured discretely. The
A3425LK is an ultra-sensitive device optimized for use with high-
density ring magnets.
independent
I
I
I
I
I
I
I
I
I
Two Matched Hall Switches On A Single Substrate
BIPOLAR HALL-EFFECT SWITCH
This device also eliminates the major manufacturing
use in

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A3425LK Summary of contents

Page 1

... Hall elements. Here, the two Hall elements are photolithographically aligned to better than contrasted with 100 m or worse me- chanical location tolerance when manufactured discretely. The A3425LK is an ultra-sensitive device optimized for use with high- density ring magnets. independent I ...

Page 2

DUAL, CHOPPER-STABILIZED, ULTRA-SENSITIVE, BIPOLAR HALL-EFFECT SWITCH Dwg. FH-020-7 1.0 0.8 0.6 0.4 FREE AIR 177 C/W JA 0 AMBIENT TEMPERATURE SUPPLY TO ALL REG. ...

Page 3

DUAL, CHOPPER-STABILIZED, ULTRA-SENSITIVE, BIPOLAR HALL-EFFECT SWITCH 3425 ...

Page 4

DUAL, CHOPPER-STABILIZED, ULTRA-SENSITIVE, BIPOLAR HALL-EFFECT SWITCH OPERATE POINT -10 -15 RELEASE POINT -20 -25 -50 - AMBIENT TEMPERATURE IN C 300 200 100 ...

Page 5

AMBIENT TEMPERATURE IN C Allegro DUAL, CHOPPER-STABILIZED, ULTRA-SENSITIVE, BIPOLAR HALL-EFFECT SWITCH 3 5- ...

Page 6

DUAL, CHOPPER-STABILIZED, ULTRA-SENSITIVE, BIPOLAR HALL-EFFECT SWITCH ...

Page 7

Magnetic Hall Sensor Using Dynamic Quadrature Offset Cancellation Stabilized Amplifiers With A Track-and-Hold Signal Demodulator DUAL, CHOPPER-STABILIZED, BIPOLAR HALL-EFFECT SWITCH +V Monolithic Chopper ULTRA-SENSITIVE, REG X B — HALL VOLTAGE + Dwg. AH-011 ...

Page 8

DUAL, CHOPPER-STABILIZED, ULTRA-SENSITIVE, BIPOLAR HALL-EFFECT SWITCH +B B OP1 - OP2 B RP2 -B OUT E1 OUT E2 circuitry can be used to determine the direction of move- ment of the magnetic field across the face of ...

Page 9

Operating characteristics are limited by allowable package power dissipation ( function of ambient tempera- D ture (T ), which is defined by the maximum internal A junction temperature (T = 170 C) and the package J thermal ...

Page 10

DUAL, CHOPPER-STABILIZED, ULTRA-SENSITIVE, BIPOLAR HALL-EFFECT SWITCH 0.208 0.203 45 0.138 0.133 0.085 MAX 0.600 0.560 SEE NOTE 0.0189 0.050 0.0142 BSC 0.095 0.005 0.002 MAX 0 –8 0.004 0.020 MAX MIN FLAT 0.063 45 0.059 ...

Page 11

DUAL, CHOPPER-STABILIZED, ULTRA-SENSITIVE, BIPOLAR HALL-EFFECT SWITCH 3425 ...

Page 12

DUAL, CHOPPER-STABILIZED, ULTRA-SENSITIVE, BIPOLAR HALL-EFFECT SWITCH Operating Temperature Ranges - + - + - +115 - +125 ...

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