A1190 ALLEGRO [Allegro MicroSystems], A1190 Datasheet - Page 3

• Manufacturer Part Number: A1190
• Description: Programmable, Chopper-Stabilized, Two Wire Hall-Effect Switches
• Manufacturer: ALLEGRO [Allegro MicroSystems]

A1190, A1192,
and A1193
ELECTRICAL CHARACTERISTICS
range; unless otherwise noted
MAGNETIC CHARACTERISTICS
PROGRAMMABLE PARAMETERS
Supply Voltage
Supply Current
Supply Zener Clamp Voltage
Supply Zener Clamp Current
Reverse Supply Current
Output Slew Rate
Chopping Frequency
Power-Up Time
Power-Up State
1
2
3
4
5
6
7
Initial Operate Point
Programmable Magnetic
Operating Point
Average Magnetic Step Size
Switchpoint Temperature Drift
Hysteresis
1
magnetic polarity; therefore greater B values indicate a stronger south polarity field (or a weaker north polarity field, if present).
2
3
B
Programming Lock
V
The V
Measured without bypass capacitor between VCC pin and the GND pin. Use of a bypass capacitor results in slower current change.
Power-Up Time is measured without and with a bypass capacitor of 0.01 μF. Adding a larger bypass capacitor would cause longer Power-Up Time.
Guaranteed by characterization and design.
Power-Up State as defined is true only with a V
For t > t
Relative values of B use the algebraic convention, where positive values indicate south magnetic polarity, and negative values indicate north
1 G (gauss) = 0.1 mT (millitesla).
STEP
OP
CC
Trim
represents the generated voltage between the VCC pin and the GND pin.
BOP
CC
on
slew rate must exceed 600 mV/ms from 0 to 3 V. A slower slew rate through this range can affect device performance.
is a calculated average from the cumulative programmed bits.
and B
Characteristics
Characteristics
1,2
2,4,5
6,7
RP
Name
3
< B < B
OP
3
, Power-Up State is not defined.
1
Fine trim of Programmable Magnetic Operating Point
Lock access to programming
STEP
Valid at T
Symbol
Symbol
B
V
Valid at T
I
I
ΔB
I
B
POS
Z(sup)
I
di/dt
OP(init)
V
CC(L)
CC(H)
B
Z(sup)
RCC
t
f
HYS
on
CC
OP
C
OP
CC
BOP
slew rate of 25 mV / μs or greater.
A
Operating, T
A1190
A1192
A1193
A1190, A1192
A1193
I
V
V
No bypass capacitor, capacitance of probe
C
A1190, A1192
A1193
t
T
T
A
CC
on
= –40°C to 150°C, T
A
A
Z(sup)
RCC
S
= –40°C to 150°C, T
= 25°C
= 25°C, V
< t
Functional Description
= 20 pF
= I
= –18 V
on
CC(L)
= 28 V
(max) , V
(max) + 3 mA, T
J
CC
≤ 165 °C
= 5 V
Test Conditions
Test Conditions
CC
Programmable, Chopper-Stabilized,
B > B
B > B
B < B
B < B
B > B
C
C
BYP
BYP
slew rate > 25 mV / μs
OP
OP
RP
RP
OP
= 0.01 μF, B > B
= 0.01 μF, B < B
J
J
≤ T
< T
A
Two Wire Hall-Effect Switches
= 25°C
J
J
(max); unless otherwise noted
(max), C
OP
RP
BYP
+ 10 G
– 10 G
= 0.01 μF, through operating supply voltage
Quantity
of Bits
6
1
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
Min.
Min.
3.0
2.0
12
12
28
10
5
5
–
–
–
–
–
–
–
–
3
–
5
I
Typ.
CC(H)
Typ.
700
–14
±20
4.8
90
–
–
–
–
–
–
–
–
–
–
–
–
–
I
CC(L)
+ 3 mA
Max.
Max.
–1.6
200
5.0
6.9
6.9
7.5
24
17
17
25
25
10
30
–
–
–
–
–
(max)
mA / μs
Unit
Unit
kHz
mA
mA
mA
mA
mA
mA
mA
μs
μs
V
V
–
G
G
G
G
G
2
3