A1373EKB datasheet(3/23 Pages) ALLEGRO

3 / 23 page

A1373-DS, Rev. 3

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

115 Northeast Cutoff, Box 15036

www.allegromicro.com

Allegro MicroSystems, Inc.

High Precision, Output Pin Programmable, Linear Hall Effect Sensors

A1373 and A1374

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max

Units

ELECTRICAL CHARACTERISTICS

over operating temperature range, VCC=5.0 V, unless otherwise noted

Supply Voltage

VCC

Operation within specification,

Tj < 165°C

4.5

5.0

5.5

Supply Current

ICC

–

8.2

Reverse-Supply Current

IRCC

VCC = –16 V, TA = 25°C

–

Power-On Time1

tPO

CLOAD = 10 nF, 90% full scale VOUT

–

300

μs

Chopping Frequency

–

200

–

kHz

Internal Bandwidth

A1373

Small signal -3 dB

–

2.5

–

kHz

A1374

–

kHz

OUTPUT CHARACTERISTICS

over operating temperature range, VCC=5.0 V, unless otherwise noted

Noise2,3

A1373 peak-to-peak, CLOAD > 1 nF,

2.5 mV/G

–

A1374

–

Output Capacitance Load

CLOAD

VOUT pin to GND pin

–

Output Resistive Load

RLOAD

4700

–

Phase Shift

ΔΦ

A1373 Magnetic signal freq. = 100 Hz

–

(°)

A1374 Magnetic signal freq. = 1000 Hz

–

(°)

Output Voltage

VOUT(Sat)HIGH

IOUTSINK = 1.2 mA,

B(kG) > (VCC–VOUT(Q)) / Sens (mV/G)

4.65

4.7

–

VOUT(Sat)LOW

IOUTSOURCE = 1.2 mA,

B(kG) < VOUT(Q) / Sens (mV/G)

–

0.2

0.25

Output Resistance

ROUT

–

1.5

–

MAGNETIC CHARACTERISTICS

Magnetic Slew Rate

SLR

V / ms / Sens

–

G/μs

PRE-PROGRAMMING TARGET (Prior to coarse and fine trim)

over operating temperature range, VCC=5.0 V, unless

otherwise noted

Pre-Programming Quiescent

Output Voltage

VOUT(Q)PRE

B = 0 G, TA = 25°C

1.62

1.80

1.98

Pre-Programming Sensitivity

SensPRE

TA = 25°C

1.05

1.31

1.75

mV/G

Pre-Programming Sensitivity

Temperature Coefficient

TCPRE

TA relative to 25°C

–0.016

0.05

0.104

%/°C

INITIAL COARSE PROGRAMMING

over operating temperature range, VCC=5.0 V, unless otherwise noted

Initial Coarse Quiescent Output

Voltage

VOUT(Q)INITLOW TA = 25°C

–

0.55

–

VOUT(Q)INITMID Reference VOUT(Q)PRE

––-

–

VOUT(Q)INITHIGH TA = 25°C

–

3.25

–

Initial Coarse Sensitivity

SensINITLOW

Reference SensPRE

–

mV/G

SensINITMID

TA = 25°C

–

2.8

–

mV/G

SensINITHIGH

TA = 25°C

–

5.5

–

mV/G

CHARACTERISTIC PARAMETERS

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