Characteristics

Symbol

Test Conditions

Min.

Typ.

Max.

Unit

Continued on the next page…

Sensitivity Programming

Initial Sensitivity

–

–

(% D)/G

Guaranteed Sensitivity Range

45

–

75

(m% D)/G

Sensitivity Programming Bits

–

8

–

bit

150

300

450

(μ% D)/G

–

× ±0. 5

–(μ% D)/G

Carrier Frequency Programming

Initial Carrier Frequency

–

–Hz

Carrier Frequency Programming Range

1.8

2

2.2

kHz

Carrier Frequency Programming Bits

–

4

–

bit

90

114

140

Hz

Carrier Frequency Programming

–

× ±0. 5

–Hz

Calibration Test Mode

45

50

55

ms

Output Duty Cycle During Calibration

49

50

51

% D

Lock Bit Programming

Overall Programming Lock Bit

LOCK

–

1

–

bit

Factory Programmed Sensitivity Temperature Coefficient And Drift Characteristics

–

0.03

–

%/°C

Sensitivity Drift Through Temperature

–

< ±3

–

%

Sensitivity Drift Due to Package

–

< ±1

–

%

Factory Programmed Duty Cycle Drift

–

0

–

(% D)/°C

Quiescent Duty Cycle Drift Through

Temperature Range

–

< ±0.35

–

% D

High Precision Linear Hall-Effect Sensor IC

With an Open Drain Pulse Width Modulated Output

A1356

4

Allegro MicroSystems, LLC

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com