A1250(2012) 查看數據表（PDF） - Allegro MicroSystems

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A1250
(Rev.:2012)

Hall Effect Latch / Bipolar Switch

Allegro MicroSystems 

A1250

Hall Effect Latch / Bipolar Switch

OPERATING CHARACTERISTICS Valid at TA = –40°C to 150°C, CBYPASS = 0.1 μF, unless otherwise noted

Characteristics

Symbol

Test Conditions

Min.

Typ.

Max.

Unit

ELECTRICAL CHARACTERISTICS

Supply Voltage

VCC

Operating TJ < 165°C

3.0

–

24

V

Output Leakage Current

IOUTOFF VOUT = 24 V, B < BRP

–

–

10

μA

Output On Voltage

VOUT(SAT) IOUT = 20 mA, B > BOP

–

–

500

mV

Output Current Limit

IOM

B > BOP

30

–

60

mA

Power-On Time

tPO

VCC > 3.0 V

–

–

25

μs

Chopping Frequency

fc

–

160

–

kHz

Output Rise Time1

tr

RLOAD = 820 Ω, CS = 20 pF

–

–

2

μs

Output Fall Time1

tf

RLOAD = 820 Ω, CS = 20 pF

–

–

2

μs

Supply Current

ICCON

ICCOFF

B > BOP

B < BRP

–

–

4

mA

–

–

4

mA

Reverse Battery Current

IRCC

VRCC = –18 V

–

–

–2

mA

Supply Zener Clamp Voltage

VZ

ICC = 6.5 mA, TA = 25°C

28

–

–

V

Supply Zener Current

IZ

VCC = 28 V

–

–

7

mA

MAGNETIC CHARACTERISTICS2 Valid at TA = –40°C to 150°C, TJ ≤ TJ(max), unless otherwise noted

Operate Point

BOP

–10

5

25

G

Release Point

BRP

–25

–5

10

G

Hysteresis

BHYS

5

10

25

G

1Guaranteed by design.

2Magnetic flux density, B, is indicated as negative value for north-polarity fields, and positive for south-polarity fields.

Allegro MicroSystems, Inc.

3

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

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