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