A3425LLTR datasheet(4/21 Pages) ALLEGRO

Part #	A3425LLTR

Description	Ultra-Sensitive Dual-Channel Quadrature Hall-Effect Bipolar Switch

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Manufacturer	ALLEGRO [Allegro MicroSystems]

Direct Link	http://www.allegromicro.com

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4

A3425DS-Rev. !

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

115 Northeast Cutoff, Box 15036

www.allegromicro.com

Allegro MicroSystems, Inc.

Ultra-Sensitive Dual-Channel Quadrature Hall-Effect Bipolar Switch

A3425

OPERATING CHARACTERISTICS Valid over operating temperature ranges unless otherwise noted; typical data applies to

VCC = 12 V, and TA = 25ºC

Characteristic

Symbol

Test Conditions

Min. Typ. Max

Units

ELECTRICAL CHARACTERISTICS

Supply Voltage1

VCC

Operating; TA ≤ 150°C

3.3

–

18

V

Output Leakage Current

IOUTPUT(OFF)

Either output

–

< 1

10

µA

Output Rise Time

tr

CLOAD = 20 pF, RLOAD = 820 Ω

–

110

–

ns

Output Fall Time

tf

CLOAD = 20 pF, RLOAD = 820 Ω

–55

–

ns

Supply Current

ICC(OFF)

B < BRP(A) ,B < BRP(B)

–

3.5

6.0

mA

ICC(ON)

B > BOP(A) ,B > BOP(B)

–

4.0

6.0

mA

Low Output Voltage

VOUTPUT(ON)

Both outputs; IOUTPUT(SINK) = 20 mA; B > BOP(A),

B > BOP(B)

–

160

500

mV

Output Sink Current

IOUTPUT(SINK)

–

20

mA

Output Sink Current, Continuous2

IOUTPUT(SINK)C TJ < TJ(max) ,VOUTPUT = 12 V

–

70

mA

Output Sink Current, Peak3

IOUTPUT(SINK)P t < 3 seconds

–

220

mA

Chopping Frequency

fC

–

340

–

kHz

TRANSIENT PROTECTION CHARACTERISTICS

Supply Zener Voltage

VZ

ICC = 15 mA

28

33

37

V

Supply Zener Current4

IZ

VS = 28 V

–

9.0

mA

Reverse-Battery Current

IRCC

VRCC = –18 V, TJ < TJ(max)

–

2

15

mA

Continued on the next page...

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