OH443
Hall Effect Unipolar IC For High Temperature
Order Information
Part
number
OH443
Operate
temperature
-40½150℃
Package
TO-92S
1000pcs/bag
General Description
OH443 includes an on-chip Hall voltage generator for magnetic sensing, an
amplifier to amplify Hall voltage, and a comparator to provide switching hysteresis
for noise rejection, and an open-collector output pre-driver. While the magnetic flux
density (B) is larger than threshold Bop, the OUT pin turns on (low). When B < Brp,
the OUT pin go into “ off ” state.
Features
Applications
½
High reliability
½
Speed measurement
½
High sensitivity
½
Home appliances
½
good temperature performance
½
Position detection
½
anti-environmental stress
½
Flow measurement
Absolute Maximum Ratings
（T
A
=25℃）
Supply Voltage V
CC··············
4-30V
Operating Temperature Range T
A ········
-40
½
150℃
Output Current I
O···················
50mA
Storage Temperature RangeT
S ················
-55½150℃
Magnetic-electrical Transfer Characteristics Functional Block Diagram
Diagram：
V
OUT
Pin1.V
CC
V
OH
B
H
REG
Pin3.Vout
AMP
m
V
OL
0
B
RP
B
OP
B
Pin2.GND
Electrical Characteristics
(Ta= 25°C )
Value
Parameter
Supply Voltage
Output Saturation Voltage
Output Leakage Current
Supply Current
Output Rise Time
Output Falling Time
Symbol
V
CC
V
OL
I
OH
I
CC
t
r
t
f
Vcc=4.5V, Iout=20mA，
B≥B
OP
Vout=24V，B≤B
RP
V
CC
=Vccmax OC output
Vcc=12V, R
L
=820Ω,
C
L
=20pF
Page 1
www.ohhall.com
FAX: 86-25-52312738
Conditions
Min
4
-
-
-
-
-
Typ
-
200
1.0
5
0.2
0.18
Max
30
400
10
-
2.0
2.0
Unit
V
mV
μA
mA
μS
μS
Nanjing Ouzhuo Technology co., Ltd
Tel：86-25-52312738，86-25-83247886
www.zbling.com
E-mail: ohhall@163.com
OHHALLSENSOR [ Nanjing Ouzhuo Technology Co., Ltd. ]
