Chopper-Stabilized Hall Effect Bipolar Switch
A3230
3
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
OPERATING CHARACTERISTICS valid over full operating voltage and ambient temperature ranges, unless otherwise noted
Characteristic
Symbol
Test Conditions
Min. Typ. Max. Units
Electrical Characteristics
Supply Voltage
1
V
CC
Operating, T
J
< 165癈
3.6 24 V
Output Leakage Current
I
OUTOFF
V
OUT
= 24 V, B < B
RP
10 糀
Output On Voltage
V
OUT(SAT)
I
OUT
= 20 mA, B > B
OP
250 500 mV
Output Current Limit
I
OM
B > B
OP
30 60 mA
Power-On Time
t
PO
V
CC
> 3.6 V
8 50 約
Chopping Frequency
f
c
200 kHz
Output Rise Time
2
t
r
R
LOAD
= 820 ? C
S
= 20 pF
0.2 1 約
Output Fall Time
2
t
f
R
LOAD
= 820 ? C
S
= 20 pF
0.2 1 約
Supply Current
I
CCON
B > B
OP
1.6 3.5 mA
I
CCOFF
B < B
RP
1.6 3.5 mA
Reverse Battery Current
I
RCC
V
RCC
= 18 V
2 mA
Supply Zener Clamp Voltage
V
Z
I
CC
= 6.5 mA; T
A
= 25癈
28 V
Supply Zener Current
3
I
Z
V
S
= 28 V
6.5 mA
Magnetic Characteristics
4
Operate Point
B
OP
South pole adjacent to branded face of device
10 7.5 25
G
Release Point
B
RP
North pole adjacent to branded face of device
25 7.5 10 G
Hysteresis
B
HYS
B
OP
B
RP
5 15 25
G
1
Maximum voltage must be adjusted for power dissipation and junction temperature, see Power Derating section.
2
C
S
= oscilloscope probe capacitance.
3
Maximum current limit is equal to the maximum I
CC(MAX)
+ 3 mA.
4
Magnetic ux density, B, is indicated as a negative value for north-polarity magnetic elds, and as a positive value for south-polarity magnetic elds.
This so-called algebraic convention supports arithmetic comparison of north and south polarity values, where the relative strength of the eld is indicated
by the absolute value of B, and the sign indicates the polarity of the eld (for example, a 100 G eld and a 100 G eld have equivalent strength, but
opposite polarity).
DEVICE QUALIFICATION PROGRAM
Contact Allegro for information.
EMC (Electromagnetic Compatibility) REQUIREMENTS
Contact Allegro for information.
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