A1171 데이터 시트보기 (PDF) - Allegro MicroSystems

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A1171

Micropower Ultrasensitive Hall Ef fect Switch

Allegro MicroSystems 

A1171

Micropower Ultrasensitive Hall Effect Switch

THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information

Characteristic

Package Thermal Resistance

Symbol

RθJA

Test Conditions*

2-layer PCB, with 0.23 in.2 copper area each side

4-layer PCB, based on JEDEC standard

Value

125

64

*Additional thermal information available on Allegro Web site.

Units

ºC/W

ºC/W

Power Dissipation versus Ambient Temperature

3000

2750

2500

2250

2000

1750

1500

1250

1000

750

500

250

0

20

EW package

4-layer PCB

(RθJA = 64 ºC/W)

EW package

2-layer PCB

(RθJA = 125 ºC/W)

40 60 80 100 120 140 160 180

Temperature (°C)

Magnetic Field

Output Polarity Diagram

+B (South)

0

–B (North)

Output Pin

(Activation Polarity)

(Omnipolar

configuration)

(Unipolar

configuration)

VOUTPS

VOUTPN

(South)

VOUTPS

(North)

VOUTPN

Allegro MicroSystems, LLC

4

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

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