OHHALLSENSOR OH1881 Hall effect latching ic Datasheet

OH1881
Hall effect Latching IC
Order Information
PN
OH1881
-40~125℃
Operate temperature
Package
1000pcs/bag
General Description
Description:: OH1881Hall effect Latching Switch IC are composed of a
reverse protector, voltage regulator, Hall voltage generator, differential amplifier,
Schmitt trigger and an open-collector output on a single silicon chip. ICs can
convert the changeable magnetic field signal into digital voltage output.
Features
Applications
� High reliability
� Non-contact switch
� anti-environmental stress
� Speed measurement
� Reverse Polarity Protection
� Position detection
� Interfacing with All Kinds of Logic Circuits
� Brushless DC motor
Absolute Maximum Ratings (TA=25℃)
Supply VoltageVCC··············4.5-24V
Operating Temperature Range TA ············-40~125℃
Output Current IO···················25mA
Storage Temperature RangeTS ················-55~150℃
Magnetic-electrical Transfer Characteristics
VOUT
Functional Block Diagram
Diagram:
Pin1.VCC
VOH
REG
BH
Pin3.Vout
AMP
m
BRP
0
BOP
B
Pin2.GND
Electrical Characteristics (Ta= 25°C )
Parameter
Symbol
Supply Voltage
VCC
Output Saturation
Voltage
VOL
Output Leakage Current
IOH
Supply Current
ICC
Conditions
VCC=4.5V, RL=960Ω,
B≥BOP
Vo=Vccmax , B≤BRP
VCC=VCCMAX
OC OUTPUT
Value
Unit
Min
Typ
Max
4.5
-
24
V
-
200
400
mV
-
1
10
μA
-
6
-
mA
Output Rise Time
tr
Vcc=12V, RL=820Ω,
-
0.3
1.5
μS
Output Falling Time
tf
CL=20pF
-
0.3
1.5
μS
Nanjing Ouzhuo Technology co., Ltd
Tel:86-25-52312738,86-25-83247886
Page 1
www.ohhall.com
FAX: 86-25-52312738
www.zbling.com
E-mail: [email protected]
OH1881
Hall effect Latching IC
Magnetic Characteristics (Ta= 25°C ) (1mT = 10 Gauss)
Min
Value
Typ
Max
BOP
1
-
6
mT
Release Point
BRP
-6
-
-1
mT
Hysteresis
BH
-
7
-
mT
Parameter
symbol
Operate Point
Test Circuit for Reference
Reference:
Unit
Pin Descriptions
Descriptions:1.VCC 2. GND 3.Vout
Caution:
Vcc
1)when installing, please minimize mechanical
stress on the IC shell and leads.
2)Welding temperature should be lower than
Vout
260 ℃, less than 3 seconds.
3)IC is OC output, so a pull-up resistor
RL
CL
RL=820Ω
CL=20 pF
connected pin 1 (power) and pin 3 (output) is
necessary.
Dimension
unit:mm)
Dimension(unit:mm)
1
2
3
Nanjing Ouzhuo Technology co., Ltd
Tel:86-25-52312738,86-25-83247886
Page 2
www.ohhall.com
FAX: 86-25-52312738
www.zbling.com
E-mail: [email protected]
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