4

A1421-DS

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

115 Northeast Cutoff, Box 15036

www.allegromicro.com

Allegro MicroSystems, Inc.

High Precision Hall Effect AC-Coupled Differential Sensor with Integrated Filter Capacitor

A1421, A1422, A1423

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

ELECTRICAL CHARACTERISTICS

Supply Voltage

4.0

12

26.5

V

Supply Current

–

4.2

7.0

mA

Output Saturation Voltage

–

140

400

mV

Output Leakage Current

–

–

5

μA

PROTECTION COMPONENT CHARACTERISTICS

Reverse Supply Current

–

–

–1

mA

Supply Zener Current

–

–

10

mA

28

33

37

V

Output Zener Current

–

–

3

mA

Output Zener Clamp Voltage

28

–

–

V

Output Short Circuit Current Limit

–

–

50

mA

RESPONSE CHARACTERISTICS

Power-On State

POS

–

High

–

V

–

4.5

9

ms

0

–

50

ms

4.5

–

59

ms

Upper Corner Frequency

–3 dB, single pole

20

–

–

kHz

Lower Corner Frequency

–3 dB, single pole

–

–

20

Hz

OUTPUT CHARACTERISTICS

–

–

200

ns

Output Fall Time

–

–

200

ns

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