A1381 查看數據表（PDF） - Allegro MicroSystems

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A1381

Programmable Linear Hall Effect Sensors with Analog Output Available in a Miniature Thin Profile Surface Mount Package

Allegro MicroSystems 

A1381, A1382,

A1383, and A1384

Programmable Linear Hall Effect Sensors with Analog Output

Available in a Miniature Thin Profile Surface Mount Package

OPERATING CHARACTERISTICS (continued), valid over full operating temperature range, TA; CBYPASS= 0.1 μF, VCC = 5 V, unless otherwise specified

Characteristic

Symbol

Test Conditions

Min. Typ. Max. Units

PRE-PROGRAMMING TARGET5

Pre-Programming Quiescent

Voltage Output

VOUT(Q)init B = 0 G, TA = 25°C

–

2.1

–

V

A1381

–

4.2

–

mV/G

Pre-Programming Sensitivity

Sensinit

A1382

A1383

TA = 25°C

–

2.9

–

mV/G

–

2.1

–

mV/G

A1384

–

1.4

–

mV/G

Pre-Programming Sensitivity

Temperature Coefficient6

TCSensinit TA = 150°C

–

–0.05

–

%/°C

QUIESCENT VOLTAGE OUTPUT PROGRAMMING

Guaranteed Quiescent Voltage

Output Range4,7

VOUT(Q)

B = 0 G, TA = 25°C

2.3

–

2.6

V

Quiescent Voltage Output

Programming Bits

–

6

–

bit

Average Quiescent Voltage

Output Step Size8,9

StepVOUT(Q) TA = 25°C

8

11.5

15

mV

Quiescent Voltage Output

Programming Resolution10

ErrPGVOUT(Q) TA = 25°C

–

StepVOUT(Q) ×

±0.5

–

mV

SENSITIVITY PROGRAMMING

A1381

6.00

–

9.00 mV/G

Guaranteed Sensitivity Range4,11

Sens

A1382

A1383

TA = 25°C

4.00

–

2.75

–

6.25 mV/G

4.25 mV/G

A1384

2.00

–

3.00 mV/G

Sensitivity Programming Bits

–

6

–

bit

A1381

90

110

130 μV/G

Average Sensitivity Step Size8,9

StepSENS

A1382

A1383

TA = 25°C

55

75

95

μV/G

35

55

75

μV/G

A1384

28

35

42

μV/G

Sensitivity Programming

Resolution10

ErrPGSENS TA = 25°C

–

StepSENS ×

±0.5

–

mV/G

SENSITIVITY TC PROGRAMMING

Guaranteed Sensitivity Tem-

perature Coefficient Range6

TCSens

TA = 150°C

0.00

–

0.095 %/°C

Sensitivity Temperature Coef-

ficient Programming Bits

–

3

–

bit

Average Sensitivity Tempera-

ture Coefficient Step Size6

StepTCSENS TA = 150°C

–

0.03

–

%/°C

Sensitivity Temperature Coeffi-

cient Programming Resolution6

ErrPGTCSENS TA = 150°C

–

StepTCSENS x

±0.5

–

%/°C

POLARITY PROGRAMMING

Polarity Programming Bit12

POL

–

1

–

bit

LOCK BIT PROGRAMMING

Overall Programming Lock Bit

LOCK

–

1

–

bit

Continued on the next page...

Allegro MicroSystems, Inc.

4

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

www.allegromicro.com

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