A1391 View Datasheet(PDF) - Allegro MicroSystems

Part Name

Description

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A1391

Micro Power 3 V Linear Hall Effect Sensors with Tri-State Output and User-Selectable Sleep Mode

Allegro MicroSystems 

A1391, A1392,

Micro Power 3 V Linear Hall Effect Sensors with

A1393, and A1395 Tri-State Output and User Selectable Sleep Mode

Device Characteristics Tables

ELECTRICAL CHARACTERISTICS valid through full operating ambient temperature range, unless otherwise noted

Characteristic

Symbol

Test Conditions

Min.

Typ.1

Max. Units

Supply Voltage

Nominal Supply Voltage

Supply Zener Clamp Voltage

Ratiometric Reference Voltage2

Ratiometric Reference Zener Clamp Voltage

¯S¯¯L¯¯E¯¯E¯¯P¯ Input Voltage

¯S¯¯L¯¯E¯¯E¯¯P¯ Input Threshold

Ratiometric Reference Input Resistance

Chopper Stabilization Chopping Frequency

¯S¯¯L¯¯E¯¯E¯¯P¯ Input Current

Supply Current3

Quiescent Output Power Supply Rejection4

VCC

VCCN

VCCZ

VREF

VREFZ

ICC = 7 mA, TA = 25°C

IVREF = 3 mA, TA = 25°C

VINH

VINL

RREF

fC

ISLEEP

ICC

PSRVOQ

For active mode

For sleep mode

VSLEEP > VINH , VCC = VCCN,

TA = 25°C

VSLEEP < VINL, VCC = VCCN,

TA = 25°C

VCC = VCCN, TA = 25°C

VSLEEP = 3 V, VCC = VCCN

VSLEEP < VINL, VCC = VCCN,

TA = 25°C

VSLEEP > VINH , VCC = VCCN,

TA = 25°C

fAC < 1 kHz

2.5

–

–

3.0

6

8.3

2.5

–

6

8.3

3.5

V

–

V

–

V

VCC

V

–

V

–0.1

–

VCC + 0.5 V

–

0.45 × VCC

–

V

–

0.20 × VCC

–

V

250

–

–

kΩ

–

5

–

200

–

1

–

0.025

–

MΩ

–

kHz

–

μA

–

mA

–

3.2

–

–60

–

mA

–

dB

1Typical data are for initial design estimations only, and assume optimum manufacturing and application conditions, such as TA = 25°C. Performance

may vary for individual units, within the specified maximum and minimum limits.

2 Voltage applied to the VREF pin. Note that the VREF voltage must be less than or equal to Vcc. Degradation in device accuracy will occur with applied

voltages of less than 2.5 V.

3 If the VREF pin is tied to the VCC pin, the supply current would be ICC + VREF / RREF

4 fAC is any ac component frequency that exists on the supply line.

Allegro MicroSystems, Inc.

3

115 Northeast Cutoff, Box 15036

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

www.allegromicro.com

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