WCS2750
Hall Effect Base Linear Current Sensor
Features:
Low noise analog signal path
85 μΩ internal conductor resistance
Output voltage proportional to AC and DC current
Min. sensing current 0~60A at 5V voltage supply
High Sensitivity 32mV/A
Wide operating voltage range 3.0~12 V.
Low operating current 3mA
Nearly zero magnetic hysteresis.
Ratiometric output from supply voltage
23K Hz bandwidth
Functional Description :
The Winson WCS2750 provides economical and precise solution for both
DC and AC current sensing in industrial, commercial and communications
systems. The unique package allows for easy implementation by the customer.
Typical applications include motor control, load detection and management,
over-current fault detection and any intelligent power management system
etc…
The WCS2750 consists of a precise, low-temperature drift linear hall
sensor IC with temperature compensation circuit and a current path with 85
μΩ typical internal conductor resistance. This extremely low resistance can
effectively reduce power loss, operating temperature and increase the
reliability greatly. Applied current flowing through this conduction path
generates a magnetic field which is sensed by the integrated Hall IC and
converted into a proportional voltage.
The terminals of the conductive path are electrically isolated from the
sensor leads. This allow the WCS2750 current sensor to be used in
applications requiring electrical isolation without the use of opto-isolators or
other costly isolation techniques and make system more competitive in cost.
Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson, 2015/5/27
WCS2750
Function Block:
Electrical Characteristics:
Characteristic
Supply Voltage
Supply Current
Zero Current Vout
Primary Conductor Resistance
Sensitivity
(T=+25˚C, Vdd=5.0V )
Min Typ Max Units
3.0
─
2.4
─
27
─
3.5
2.5
85
32
12
6.0
2.6
─
37
V
mA
V
μΩ
mV/A
─
IP =0 A
IP =0 A
IP =10 A
IP=
±10
A
Symbol Test Conditions
Vcc
Isupply
V0G
R
primary
△Vout
Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson, 2015/5/27
WCS2750
Bandwidth
Measurable Current Range
Temperature Drift
BW
MCR
△Vout
Vdd=5V(DC
current)
Vdd=5V(AC
RMS
)
Ip =0 A
－
－
－
－
23
±60
40
±0.5
－
－
－
－
kHz
A
mV/℃
1.All output-voltage measurements are made with a voltmeter having an input impedance of at least 100kΩ
2. Do not apply any load on output pin, it will degrade IC’s performance.
Normalized Sensitivity (by 30oC) vs. Temperature
1.20
1.00
0.80
Factor
0.60
0.40
0.20
0.00
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120 oC
Package Information:
Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson, 2015/5/27
