A3245LLHLT-T Allegro Microsystems Inc, A3245LLHLT-T Datasheet - Page 4

• Manufacturer Part Number: A3245LLHLT-T
• Description: IC SW HALL EFFECT OMNI SOT23W
• Manufacturer: Allegro Microsystems Inc
• Type: Omnipolar Switchr

Specifications of A3245LLHLT-T

• Sensing Range: ±55G Trip, ±6G Release
• Voltage - Supply: 3.6 V ~ 24 V
• Current - Supply: 3.5mA
• Output Type: Digital, Open Drain
• Features: Regulated Voltage
• Operating Temperature: -40°C ~ 150°C
• Package / Case: SOT-23W
• Magnetic Type: Omnipolar
• Operating Supply Voltage (min): 3.6V
• Operating Supply Voltage (typ): 5/9/12/15/18V
• Operating Supply Voltage (max): 24V
• Mag Sensor Operate Point (g): -15/55Gs
• Mag Sensor Release Point (g): -50/5Gs
• Mag Sensor Hysteresis(g): 18Gs
• Package Type: SOT-23W
• Pin Count: 3
• Mounting: Surface Mount
• Operating Temp Range: -40C to 150C
• Operating Temperature Classification: Automotive
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output (max): -
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant

A3245
OPERATING CHARACTERISTICS valid over full operating voltage and ambient temperature ranges, unless otherwise noted
Electrical Characteristics
Supply Voltage
Output Leakage Current
Output On Voltage
Output Current Limit
Power-On Time
Chopping Frequency
Output Rise Time
Output Fall Time
Supply Current
Reverse Battery Current
Supply Zener Clamp Voltage
Supply Zener Current
Magnetic Characteristics
Operate Point
Release Point
Hysteresis
1
2
3
4
This so-called algebraic convention supports arithmetic comparison of north and south polarity values, where the relative strength of the fi eld is indicated
by the absolute value of B, and the sign indicates the polarity of the fi eld (for example, a –100 G fi eld and a 100 G fi eld have equivalent strength, but
opposite polarity).
Maximum voltage must be adjusted for power dissipation and junction temperature, see Power Derating section.
C
Maximum current limit is equal to the maximum I
Magnetic fl ux density, B, is indicated as a negative value for north-polarity magnetic fi elds, and as a positive value for south-polarity magnetic fi elds.
S
= oscilloscope probe capacitance.
Characteristic
1
2
2
3
4
Chopper-Stabilized Omnipolar Hall Effect Switches
V
Symbol
V
I
I
I
OUTOFF
OUT(SAT)
I
ZSupply
EMC (Electromagnetic Compatibility) REQUIREMENTS
CCOFF
B
B
B
B
B
ZSupply
CCON
I
V
I
t
RCC
OPN
OM
PO
OPS
RPS
RPN
HYS
f
CC
t
t
c
r
f
CC(MAX)
DEVICE QUALIFICATION PROGRAM
Operating, T
V
I
B > B
V
R
R
B > B
B < B
V
I
V
South pole adjacent to branded face of device
North pole adjacent to branded face of device
South pole adjacent to branded face of device
North pole adjacent to branded face of device
|B
OUT
CC
OUT
CC
RCC
S
LOAD
LOAD
OPX
= 28 V
Contact Allegro for information.
Contact Allegro for information.
= 6.5 mA; T
+ 3 mA.
> V
= 20 mA, B > B
= 24 V, B < B
OP
OP
RP
= –18 V
– B
= 820 Ω, C
= 820 Ω, C
CC(MIN)
RPX
J
|
< 165°C
A
= 25°C
Test Conditions
S
S
RP
OP
= 20 pF
= 20 pF
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
Min.
–55
–50
3.6
30
28
15
–
–
–
–
–
–
–
–
–
–
5
5
Typ.
200
–38
–20
1.5
1.5
38
20
18
–
–
–
–
–
–
–
–
–
–
Max.
500
–15
3.5
3.5
6.5
24
60
55
50
–5
30
10
50
–2
–
1
1
–
Units
kHz
mV
mA
mA
mA
mA
mA
μA
μs
μs
μs
G
G
G
G
G
V
V
3