A1391, A1392,
A1393, and A1395
Micro Power 3 V Linear Hall Effect Sensors with
Tri-State Output and User Selectable Sleep Mode
OUTPUT TIMING CHARACTERISTICS
1
T
A
= 25°C
Characteristic
Power-On Time
3
Power-Off Time
4
1
See
2
Typical
Symbol
t
PON
t
POFF
Test Conditions
Min.
–
–
Typ.
2
40
1
Max.
60
–
Units
μs
μs
figure 1 for explicit timing delays.
data are for initial design estimations only, and assume optimum manufacturing and application conditions, such as T
A
= 25°C. Performance
may vary for individual units, within the specified maximum and minimum limits.
3
Power-On Time is the elapsed time after the voltage on the ¯ ¯¯ ¯ ¯ pin exceeds the active mode threshold voltage,V
SLEEP
¯¯ ¯ ¯ ¯
INH
, until the time the device output
reaches 90% of its value. When the device output is loaded with the maximum capacitance of 10 nF, the Power-On Time range is guaranteed for input
¯ ¯¯ ¯ ¯ pin frequencies less than 10 Hz.
SLEEP
¯¯ ¯ ¯ ¯
4
Power-Off Time is the duration of time between when the signal on the ¯ ¯ ¯ ¯ ¯ pin switches from HIGH to LOW and when I
SLEEP
¯¯ ¯ ¯ ¯
CC
drops to under 100
μA.
During this time period, the output goes into the HIGH impedance state.
MAGNETIC CHARACTERISTICS
T
A
= 25°C
Characteristic
Ratiometry
Ratiometry
Positive Linearity
Negative Linearity
Symmetry
Symbol
ΔV
OUTQ(ΔV)
ΔSens
(ΔV)
Lin+
Lin–
Sym
Test Conditions
Min.
–
–
–
–
–
Typ.*
100
100
100
100
100
Max.
–
–
–
–
–
Units
%
%
%
%
%
*Typical data are for initial design estimations only, and assume optimum manufacturing and application conditions, such as T
A
= 25°C. Performance
may vary for individual units, within the specified maximum and minimum limits.
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
5
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
