A1184 Allegro MicroSystems, A1184 Datasheet - Page 2

• Manufacturer Part Number: A1184
• Description: (A1180 - A1184) Unipolar Hall-Effect Switch
• Manufacturer: Allegro MicroSystems

ELECTRICAL CHARACTERISTICS
MAGNETIC CHARACTERISTICS
2
3
4
5
characterized for the A1184 and may require additional tolerance due to the high magnetic switch points
A118X FAMILY
Part Number
These are the A3161 current levels.
Typical rise and fall time of the Hall sensor is 1us, the true rise and fall time is dependent on the load circuit as indicated by the 20us specification.
Programming is typically performed at Ta = 25°C and does not take into account temperature drift of the switch point. See B
Programming is typically performed at Ta = 25°C and does not take into account temperature drift of the sw itch point.
A1180/1/2/3
A1182/3/4
A1180/1
A1184
A118X
A118X
TWO-WIRE, PROGRAMMABLE, UNIPOLAR HALL-EFFECT SWITCH FAMILY
Rev. 1.8 25 April 2003
5
2
4
Page 2
Supply Voltage
Supply Current
Supply Current
Output Rise Time
Output Fall Time
Chopping Frequency
Power-Up Time
Power-Up State
Zener Voltage
Minimum Programmable
Operate Point
Maximum Programmable
Operate Point
Switch Point Step Size
Minimum Programmable
Operate Point
Maximum Programmable
Operate Point
Switch Point Step Size
Number of Programming
Bits
Temperature Drift of B
Hysterisis
(PRELIMINARY INFORMATION – SUBJECT TO CHANGE)
Valid over operating temperature range unless otherwise noted.
Characteristics
3
3
OP
CHARACTERISTICS
Symbol
B
B
I
I
I
I
B
B
GND(L)
GND(H)
GND(L)
GND(H)
POS
B
B
B
V
OPmax
OPmax
OPmin
OPmin
V
t
B
f
RES
RES
HYS
t
t
on
CC
C
-
f
r
Z
OP
Operating
Output I Low
Output I High
Output I Low
Output I High
R
C
R
C
t < t
no bypass capacitor
I = 10mA
B>B
I
I
B>B
I
Switch Point
Programming Lock
B
GND
GND
GND
L
BYP
L
BYP
OP
=100 Ohms,
=100 Ohms,
on,
=Low (A1180/2)
=High (A1181/3)
=High (A1184)
Test Conditions
op
op
- B
=0.1uF
=0.1uF
A1180-A1183
,
,
t
RP
r
< 5us,
-
-
-
-
115 Northeast Cutoff, Box 15036
Worcester, Massachus etts 01615-0036 [phone]
Copyright © 1993, 1995 Allegro MicroSystems, Inc.
.
Min.
300
3.8
12
12
28
60
5
2
5
-
-
-
-
-
-
-
B
HIGH
Typ.
340
OP
20
20
36
16
15
8
5
1
-
-
-
-
-
-
has not yet been
Limits
OP.
Max.
+/-20
200
600
6.9
24
17
17
25
40
30
5
-
-
-
-
-
-
Units
Bit(s)
Bit(s)
kHz
mA
mA
mA
mA
us
us
V
V
G
G
G
G
G
G
G
G
-
s