A3230
Chopper-Stabilized Hall Effect Bipolar Switch
OPERATING CHARACTERISTICS valid over full operating voltage and ambient temperature ranges, unless otherwise noted
Characteristic
Electrical Characteristics
Supply Voltage1
Symbol
Test Conditions
Min.
Typ.
Max. Units
VCC
IOUTOFF
VOUT(SAT)
IOM
Operating, TJ < 165°C
3.6
–
–
–
24
10
500
60
50
–
V
Output Leakage Current
Output On Voltage
Output Current Limit
Power-On Time
VOUT = 24 V, B < BRP
IOUT = 20 mA, B > BOP
B > BOP
µA
mV
mA
µs
–
250
–
30
–
tPO
VCC > 3.6 V
8
Chopping Frequency
Output Rise Time2
Output Fall Time2
fc
–
200
0.2
0.2
1.6
1.6
–
kHz
µs
tr
RLOAD = 820 Ω, CS = 20 pF
RLOAD = 820 Ω, CS = 20 pF
B > BOP
–
1
tf
–
1
µs
ICCON
ICCOFF
IRCC
–
5
mA
mA
mA
Supply Current
B < BRP
–
5
Reverse Battery Current
VRCC = –18 V
–
–2
Supply Zener Clamp Voltage
VZ
IZ
ICC = 8 mA; TA = 25°C
VS = 28 V
28
–
–
–
–
8
V
Supply Zener Current3
mA
Magnetic Characteristics4
G
G
G
Operate Point
Release Point
Hysteresis
BOP
BRP
South pole adjacent to branded face of device
North pole adjacent to branded face of device
BOP – BRP
–10
–25
5
7.5
–7.5
15
25
10
25
BHYS
1 Maximum voltage must be adjusted for power dissipation and junction temperature, see Power Derating section.
2 CS = oscilloscope probe capacitance.
3 Maximum current limit is equal to the maximum ICC(MAX) + 3 mA.
4 Magnetic flux density, B, is indicated as a negative value for north-polarity magnetic fields, and as a positive value for south-polarity magnetic fields.
This so-called algebraic convention supports arithmetic comparison of north and south polarity values, where the relative strength of the field is indicated
by the absolute value of B, and the sign indicates the polarity of the field (for example, a –100 G field and a 100 G field have equivalent strength, but
opposite polarity).
DEVICE QUALIFICATION PROGRAM
Contact Allegro for information.
EMC (Electromagnetic Compatibility) REQUIREMENTS
Contact Allegro for information.
Allegro MicroSystems, Inc.
3
115 Northeast Cutoff, Box 15036
A3230-DS
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com