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3425 Datasheet(PDF) 3 Page - Allegro MicroSystems

Part No. 3425
Description  DUAL, CHOPPER-STABILIZED, ULTRA-SENSITIVE, BIPOLAR HALL-EFFECT SWITCH
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Maker  ALLEGRO [Allegro MicroSystems]
Homepage  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

3425 Datasheet(HTML) 3 Page - Allegro MicroSystems

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3425
DUAL, CHOPPER-STABILIZED,
ULTRA-SENSITIVE,
BIPOLAR HALL-EFFECT SWITCH
www.allegromicro.com
3
ELECTRICAL CHARACTERISTICS over operating temperature range, each switch tested
separately (unless otherwise specified).
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Supply Voltage Range
VCC
Operating, TJ < 170
°C1
3.3
26.5
V
Output Leakage Current
IOFF
VOUT = 18 V, B < BRP
<1.0
10
µA
Output Saturation Voltage
VOUT(SAT)
IOUT = 20 mA, B > BOP
225
400
mV
Output Current Limit
IOM
B > BOP
30
55
mA
Chopping Frequency
fC
340
kHz
Output Rise Time
tr
RL = 820
Ω, CL = 10 pF
110
ns
Output Fall Time
tf
RL = 820
Ω, CL = 10 pF
55
ns
Total Supply Current
ICC
Both outputs off, VCC
≤ 26.5 V
3.8
6.0
mA
Both outputs on, VCC
≤ 26.5 V
7.5
10
mA
Reverse Battery Current
ICC
VRCC = -18 V
2.0
15
mA
Zener Voltage
VZ + VD
ICC = 15 mA, TA = 25
°C
283337
V
Zener Impedance
zz + zD
ICC = 15 mA, TA = 25
°C
50
100
NOTES:1. Supply voltage is limited by allowable package power dissipation as a function of ambient temperature.
2. BOP = operate point (output turns on); BRP = release point (output turns off).
3. Typical Data is at TA = +25
°C and V
CC = 12 V and is for design information only.
MAGNETIC CHARACTERISTICS over operating supply voltage and temperature ranges, each
switch tested separately (unless otherwise specified).
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Operate Point
BOP1
8.0
24
G
BOP2
–11
24
G
Release Point
BRP1
-24
-11
G
BRP2
-24
-8.0
G
Hysteresis
Bhys
BOP – BRP
5.0
19
35
G
Operate Differential
BOP(dif)
BOP1 – BOP2
-2.0
±30
G
Release Differential
BRP(dif)
BRP1 – BRP2
-3.3
±30
G
Symmetry
Bsym
BOP + BRP
––
±30
G
NOTES:1. As used here, negative flux densities are defined as less than zero (algebraic convention) and -50 G is less than +10 G.
2. Typical Data is at TA = +25°C and VCC = 12 V and is for design information only.


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