A1227LLTTR-T Allegro Microsystems Inc, A1227LLTTR-T Datasheet - Page 3

• Manufacturer Part Number: A1227LLTTR-T
• Description: HALL EFFECT LATCH FOR HIGH TEMPERATURE OPERATION
• Manufacturer: Allegro Microsystems Inc
• Type: Bipolar Latchr

Specifications of A1227LLTTR-T

• Sensing Range: 150G Trip, -150G Release
• Voltage - Supply: 3.8 V ~ 24 V
• Current - Supply: 6mA
• Current - Output (max): 25mA
• Output Type: Digital, Open Drain
• Features: Regulated Voltage
• Operating Temperature: -40°C ~ 150°C
• Package / Case: SOT-89-3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 620-1350-2

A1225, A1227
and
ELECTRICAL CHARACTERISTICS
Electrical Characteristics
Supply Voltage
Supply Current
Supply Zener Voltage
Reverse Battery Current
Power-On Time
Power-On State
Chopping Frequency
Output Stage Characteristics
Output Saturation Voltage
Output Leakage Current
Output Rise Time
Output Fall Time
Output Zener Voltage
Magnetic Characteristics
Operate Point
Release Point
Hysteresis (B
1
2
3
4
Typical data are at T
1 G (gauss) = 0.1 mT (millitesla).
Minimum and maximum specifications verified by bench characterization and not guaranteed by Allegro final test.
C
L
= oscilloscope probe capacitance.
A1229
Characteristics
OP
3
– B
3,4
3,4
RP
A
)
= 25°C and V
CC
= 12 V, and are for design estimations only.
Hall Effect Latch for High Temperature Operation
V
Symbol
V
V
Valid at T
I
OUT(sat)
B
POS
f
V
Z(sup)
I
B
B
Z(sup)
I
t
chop
Z(out)
OFF
HYS
CC
PO
CC
t
t
OP
RP
r
f
Operating; T
B < B
B > B
I
V
B < B
I
V
R
R
I
A1225
A1227
A1229
A1225
A1227
A1229
A1225
A1227
A1229
A
CC
OUT
OUT
RCC
OUT
L
L
= –40°C to 150°C, C
= 820 Ω, C
= 820 Ω, C
= 9 mA, T
= 20 mA
= 3 mA, T
RP
OP
OP
= 24 V, B < B
= –28 V, T
(Output off)
(Output on)
T
Over operating temperature range
T
Over operating temperature range
T
Over operating temperature range
T
Over operating temperature range
T
Over operating temperature range
T
Over operating temperature range
T
Over operating temperature range
T
Over operating temperature range
T
Over operating temperature range
A
A
A
A
A
A
A
A
A
= 25°C
= 25°C
= 25°C
= 25°C
= 25°C
= 25°C
= 25°C
= 25°C
= 25°C
A
L
L
J
= 20 pF
= 20 pF
A
= 25°C
≤ 165°C
Test Conditions
A
= 25°C
= 25°C
RP
BYPASS
= 0.1 μF, V
CC
= 12 V; unless otherwise noted
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
Min.
–270
–300
–150
–175
–180
–200
3.8
– 5
28
30
170
140
100
340
280
100
100
200
160
–
–
–
–
–
–
–
–
–
50
50
80
HIGH
Typ.
400
175
200
200
< 1
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
1
Max.
2000
2000
–170
–140
–100
400
24
12
10
6
6
–
–
–
–
–
270
300
150
175
180
200
–50
–50
–80
540
600
300
350
360
400
Unit
kHz
mA
mA
mA
mV
μA
μs
ns
ns
V
V
V
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
–
2
3