A1220 ALLEGRO [Allegro MicroSystems], A1220 Datasheet - Page 3

• Manufacturer Part Number: A1220
• Description: Chopper Stabilized Precision Hall Effect Latches
• Manufacturer: ALLEGRO [Allegro MicroSystems]

A1220, A1221
and A1222
ELECTRICAL CHARACTERISTICS
1
2
3
4
Typical data are are at T
1 G (gauss) = 0.1 mT (millitesla).
Guaranteed by device design and characterization.
C
Electrical Characteristics
Forward Supply Voltage
Output Leakage Current
Output Saturation Voltage
Output Current Limit
Power-On Time
Chopping Frequency
Output Rise Time
Output Fall Time
Supply Current
Reverse Supply Current
Supply Zener Clamp Voltage
Zener Impedance
Magnetic Characteristics
Operate Point
Release Point
Hysteresis
L
= oscilloscope probe capacitance.
Characteristics
3
3,4
3,4
A
= 25°C and V
CC
Chopper Stabilized Precision Hall Effect Latches
= 12 V, and are for initial design estimations only.
V
Symbol
I
I
I
OUTOFF
OUT(SAT)
CC(OFF)
CC(ON)
Valid valid over full operating voltage and ambient temperature ranges; unless otherwise noted
B
I
V
B
B
I
t
RCC
V
OM
PO
f
HYS
I
t
CC
t
OP
RP
C
Z
r
f
Z
Operating, T
V
I
B > B
V
B > B
R
R
B > B
B < B
V
I
I
A1220
A1221
A1222
A1220
A1221
A1222
A1220
A1221
A1222
OUT
CC
CC
OUT
CC
RCC
L
L
= 820 Ω, C
= 820 Ω, C
= 5 mA; T
= 5 mA; T
> 3.0 V, B < B
= 20 mA, B > B
OP
OP
OP
RP
= 24 V, B < B
= –30 V
, V
, V
(max) + 10 G
(B
CC
CC
OP
J
A
A
= 12 V
= 12 V
< 165°C
L
L
= 25°C
= 25°C
Test Conditions
– B
= 20 pF
= 20 pF
RP
RP
RP
OP
(min) – 10 G,
)
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
Min.
–150
–40
–90
140
30
28
15
70
10
30
3
–
–
–
–
–
–
–
–
–
–
5
Typ.
–110
185
800
110
–23
–50
100
220
0.2
0.1
50
22
50
45
–
–
–
–
–
–
–
–
1
Max.
500
150
–15
–70
180
300
24
10
60
25
–5
40
90
–5
80
–
2
2
4
4
–
–
Unit
kHz
mV
mA
mA
mA
mA
μA
μs
μs
μs
Ω
G
G
G
G
G
G
G
G
G
V
V
2
3