A1183 ALLEGRO [Allegro MicroSystems], A1183 Datasheet - Page 3

• Manufacturer Part Number: A1183
• Description: Sensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switches
• Manufacturer: ALLEGRO [Allegro MicroSystems]

A1180, A1181,
A1182,
ELECTRICAL CHARACTERISTICS
Supply Voltage
Supply Current
Supply Zener Clamp Voltage
Supply Zener Clamp Current
Reverse Supply Current
Output Slew Rate
Chopping Frequency
Power-On Time
Power-On State
1
2
polarity; therefore greater B values indicate a stronger south polarity fi eld (or a weaker north polarity fi eld, if present).
3
4
5
device performance.
6
MAGNETIC CHARACTERISTICS
Programmable Operate Point Range
Initial Operate Point Range
Switchpoint Step Size
Number of Programming Bits
Temperature Drift of B
Hysteresis
1
polarity; therefore greater B values indicate a stronger south polarity fi eld (or a weaker north polarity fi eld, if present).
2
V
Relative values of B use the algebraic convention, where positive values indicate south magnetic polarity, and negative values indicate north magnetic
Measured without bypass capacitor between VCC and GND. Use of a bypass capacitor results in slower current change.
Measured with and without bypass capacitor of 0.01 μF. Adding a larger bypass capacitor causes longer Power-On Time.
POS is defi ned as true only with a V
POS is undefi ned for t > t
Relative values of B use the algebraic convention, where positive values indicate south magnetic polarity, and negative values indicate north magnetic
The range of values specifi ed for B
CC
represents the generated voltage between the VCC pin and the GND pin.
Characteristic
and
Characteristic
2
1
4
A1183
5,6
3
2
OP
on
or B
RP
< B < B
RES
CC
Chopper-Stabilized Unipolar Hall Effect Switches
is a maximum, derived from the cumulative programming bit errors.
V
Symbol
I
slew rate of 25 mV / μs or greater. Operation with a V
Z(supply)
I
Z(supply)
I
POS
di/dt
V
CC(H)
1
CC(L)
I
OP
RCC
t
f
B
on
Symbol
CC
C
over the operating voltage and temperature range, unless otherwise specifi ed
B
OPrange
∆B
.
B
B
over the operating voltage and temperature range, unless otherwise specifi ed
OPinit
RES
HYS
–
OP
Device powered on
B >B
B >B
B >B
B <B
I
V
V
No bypass capacitor; capacitance of the
oscilloscope performing the measurement
= 20 pF
After factory trimming; with and without
bypass capacitor (C
t
CC
on
Z(supply)
RCC
I
I
V
V
Switchpoint setting
Programming locking
B
≤ t
CC
CC
= I
CC
CC
HYS
Sensitive Two-Wire Field-Programmable
OP
OP
OP
RP
on(max)
= –18 V
CC(L)(max)
= I
= I
= 12 V
= 5 V, T
for A1180; B <B
for A1182; B <B
for A1181, A1183
for A1180, A1182
= B
CC(H)
CC(L)
= 28 V
OP
;
V
Test Conditions
CC
for A1181 and A1183
– B
for A1180 and A1182
Test Conditions
A
+ 3 mA; T
= 25°C
slew rate ≥ 25 mV/μs
RP
BYP
RP
RP
= 0.01 μF)
A
for A1181
for A1183
= 25°C
CC
slew rate less than 25 mV / μs can permanently harm
Min.
Min.
115 Northeast Cutoff, Box 15036
3.5
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
12
28
60
2
5
–
–
–
–
–
–
4
–
–
–
5
–
HIGH
Typ.
Typ.
200
36
33
15
–
–
–
–
–
–
–
–
8
5
1
–
–
I
+ 3 mA
CC(L)(max)
Max.
Max.
–1.6
200
±20
6.9
24
17
40
25
60
12
30
5
–
–
–
–
–
mA/μs
Units
Units
kHz
mA
mA
mA
mA
mA
Bit
Bit
μs
G
G
G
G
G
V
V
–
3