A1150(2012) 查看數據表（PDF） - Allegro MicroSystems

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A1150
(Rev.:2012)

Chopper-Stabilized, Two Wire Hall-Effect Switches

Allegro MicroSystems 

A1150, A1152, A1153, A1155,

A1156, A1157, and A1158

Chopper-Stabilized, Two Wire

Hall-Effect Switches

ELECTRICAL CHARACTERISTICS Valid at TA = –40°C to 150°C, TJ < TJ(max), CBYP = 0.01 μF, through operating supply voltage

range; unless otherwise noted

Characteristics

Symbol

Test Conditions

Min.

Typ.

Max.

Unit

Supply Voltage1,2

Supply Current

VCC

ICC(L)

ICC(H)

Operating, TJ ≤ 165 °C

A1150, A1157 B > BOP

A1158

B < BRP

A1152, A1155 B > BOP

A1153, A1156 B < BRP

A1150, A1152,

A1155, A1157

B < BRP

A1153, A1156,

A1158

B > BOP

3.0

–

24

V

2.0

–

5.0

mA

5

–

6.9

mA

12

–

17

mA

Supply Zener Clamp Voltage

Supply Zener Clamp Current

VZ(sup)

IZ(sup)

ICC(L)(max) + 3 mA, TA = 25°C

VZ(sup) = 28 V

28

–

–

V

–

–

ICC(L)(max)

+ 3 mA

mA

Reverse Supply Current

Output Slew Rate3

Chopping Frequency

Power-Up Time4,5

IRCC

VRCC = –18 V

di/dt

No bypass capacitor, capacitance of probe

CS = 20 pF

fc

A1150, A1152, B > BOP + 10 G

A1155, A1157

ton

A1153, A1156,

A1158

B < BRP – 10 G

–

–

–1.6

mA

–

90

–

mA/ μs

–

700

–

kHz

–

–

25

μs

Power-Up State2,4,6,7

POS ton < ton(max) , VCC slew rate > 25 mV / μs

–

ICC(H)

–

–

1VCC represents the generated voltage between the VCC pin and the GND pin.

2The VCC slew rate must exceed 600 mV/ms from 0 to 3 V. A slower slew rate through this range can affect device performance.

3Measured without bypass capacitor between VCC and GND. Use of a bypass capacitor results in slower current change.

4Power-Up Time is measured without and with bypass capacitor of 0.01 μF. Adding a larger bypass capacitor would cause longer Power-Up Time.

5Guaranteed by characterization and design.

6Power-Up State as defined is true only with a VCC slew rate of 25 mV / μs or greater.

7For t > ton and BRP < B < BOP , Power-Up State is not defined.

MAGNETIC CHARACTERISTICS1 Valid at TA = –40°C to 150°C, TJ < TJ (max); unless otherwise noted

Characteristics

Symbol

Test Conditions

Min.

Typ.

Max.

Unit2

A1150, A1152, A1153

50

–

110

G

Magnetic Operating Point

BOP A1155, A1156

A1157, A1158

20

–

60

G

20

–

80

G

A1150, A1152, A1153

45

–

105

G

Magnetic Release Point

BRP

A1155, A1156

A1157, A1158

10

–

55

G

10

–

60

G

Hysteresis

BHYS

5

–

30

G

1Relative values of B use the algebraic convention, where positive values indicate south magnetic polarity, and negative values indicate north

magnetic polarity; therefore greater B values indicate a stronger south polarity field (or a weaker north polarity field, if present).

2 1 G (gauss) = 0.1 mT (millitesla).

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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