A1365LKTTN-1-T datasheet(7/32 Pages) ALLEGRO

Part #	A1365LKTTN-1-T

Description	Low-Noise, High-Precision, Programmable Linear Hall-Effect Sensor IC

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Manufacturer	ALLEGRO [Allegro MicroSystems]

Direct Link	http://www.allegromicro.com

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Low-Noise, High-Precision, Programmable Linear Hall-Effect Sensor IC

With High-Bandwidth (120 kHz) Analog Output and Integrated Fault Comparator

A1365

7

Allegro MicroSystems, LLC

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

Continued on the next page…

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Unit1

Fault Characteristics (continued)

Fault Delay Due to Load Capacitance

tFDC

RF(PULLUP) = 10 kΩ from ¯F¯¯A¯¯¯U¯¯L¯¯T¯ to VCC

–

0.5

–

µs/nF

External Pull-Up Supply Voltage

VF(PULLUP)

1.65

VCC

V

External ¯F¯¯A¯¯¯U¯¯L¯¯T¯ Pull-Up Resistor

RF(PULLUP)

4.7

–

kΩ

External ¯F¯¯A¯¯¯U¯¯L¯¯T¯ Capacitance

CF

–

10

nF

Internal ¯F¯¯A¯¯¯U¯¯L¯¯T¯ Pull-Up Resistor

RIF(PULLUP)

–

10

–

kΩ

Internal ¯F¯¯A¯¯¯U¯¯L¯¯T¯ Pull-Up Current

IIF(PULLUP)

–

40

–

µA

Quiescent Voltage Output (VOUT(Q))2

Initial Unprogrammed Quiescent

Voltage Output2,11

VOUT(Q)init

TA = 25°C

2.4

2.5

2.6

V

Quiescent Voltage Output

Programming Range2,5,12

VOUT(Q)PR

TA = 25°C

2.3

–

2.7

V

Quiescent Voltage Output

Programming Bits13

QVO

–

9

–

bit

Average Quiescent Voltage Output

Programming Step Size2,14,15

StepVOUT(Q) TA = 25°C

1.9

2.3

2.8

mV

Quiescent Voltage Output

Programming Resolution2,16

ErrPGVOUT(Q) TA = 25°C

–

±0.5 ×

StepVOUT(Q)

–

mV

Sensitivity (Sens)2

Initial Unprogrammed Sensitivity11

Sensinit

SENS_COARSE = 00, TA = 25°C

–

1

–

mV/G

SENS_COARSE = 01, TA = 25°C

–

2.2

–

mV/G

SENS_COARSE = 10, TA = 25°C

–

4.7

–

mV/G

SENS_COARSE = 11, TA = 25°C

–

9.6

–

mV/G

Sensitivity Programming Range5,12

SensPR

SENS_COARSE = 00, TA = 25°C

0.6

–

1.3

mV/G

SENS_COARSE = 01, TA = 25°C

1.3

–

2.9

mV/G

SENS_COARSE = 10, TA = 25°C

2.9

–

6.4

mV/G

SENS_COARSE = 11, TA = 25°C

6.4

–

14

mV/G

Coarse Sensitivity Programming

Bits17

SENS_

COARSE

–

2

–

bit

Fine Sensitivity Programming Bits13

SENS_FINE

–

9

–

bit

Average Fine Sensitivity and

Temperature Compensation

Programming Step Size2,14,15

StepSENS

SENS_COARSE = 00, TA = 25°C

2.4

3.2

4.1

µV/G

SENS_COARSE = 01, TA = 25°C

5

6.6

8.5

µV/G

SENS_COARSE = 10, TA = 25°C

11

14.2

18

µV/G

SENS_COARSE = 11, TA = 25°C

22

29

38

µV/G

Sensitivity Programming

Resolution2,16

ErrPGSENS TA = 25°C

–

±0.5 ×

StepSENS

–

µV/G

Factory-Programmed Sensitivity Temperature Coefficient

Sensitivity Temperature Coefficient2

TCSENS

TA=150°C,TA= –40°C,calculated relative to

25°C

–

0

–

%/°C

Sensitivity Drift Through Temperature

Range2,12,18,23

ΔSensTC

TA = 25°C to 150°C

–2.5

–

2.5

%

TA = –40°C to 25°C

–3

–

3

%

OPERATING CHARACTERISTICS (continued): valid through the full operating temperature range, TA, CBYPASS = 0.1 µF,

and VCC = 5 V, unless otherwise specified

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