A3211 and
A3212
Micropower, Ultrasensitive
Hall Effect Switch
ELECTRICAL CHARACTERISTICS over operating voltage and temperature range (unless otherwise specified).
Characteristic
Symbol
Test Conditions
Limits
Min. Typ.* Max.
Units
Supply Voltage Range
Output Leakage Current
Output On Voltage
Awake Time
Period
Duty Cycle
VDD
IOFF
VOUT
tawake
tperiod
d.c.
Operating
VOUT = 3.5 V, Output off
IOUT = 1 mA, VDD = 2.75 V
2.5 2.75
3.5
V
–
<1.0
1.0
μA
–
100
300
mV
–
45
90
μs
–
45
90
ms
–
0.1
–
%
Chopping Frequency
fC
IDD(EN)
Chip awake (enabled)
Supply Current
IDD(DIS)
IDD(AVG)
Chip asleep (disabled)
VDD = 2.75 V
VDD = 3.5 V
* Typical data is at TA = 25°C and VDD = 2.75 V, and is for design information only.
–
340
–
kHz
–
–
2.0
mA
–
–
8.0
μA
–
5.1
10
μA
–
6.7
10
μA
Allegro MicroSystems, Inc.
4
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com