WCS1301,1302,1303,1304
Hall Effect Base Current Switch
Features:
8.3 mΩ internal conductor resistance
Output “Low” when IP>= Iop
Output “High” when IP < Irp
Wide operating voltage range 2.6~18 V.
Low operating current 2.0mA
10K Hz bandwidth
Customized Spec. upon request
Functional Description :
Winson’s WCS1301,1302,1303 and 1304 provides cheap and convenient
solution for current detection in industrial and commercial electronic systems.
Typical applications include short circuit detection, load detection and
over-current fault detection etc…
The WCS1301~4 consists of a precise, low-temperature drift hall switch IC
with temperature compensation circuit and a current path with typical 8.3 mΩ
internal conductor resistance. This extremely low resistance can effectively
reduce power loss, operating temperature and increase the reliability greatly.
Measured current IP flowing through this conduction path generates a
magnetic field which is sensed by the integrated Hall switch IC and output
“Low” when IP>=Iop and output “High” when IP<Irp.
The terminals of the conductive path are electrically isolated from the
sensor leads. This allow the WCS1301~4 current switch 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, 2015/2/6
WCS1301,1302,1303,1304
Function Block:
Electrical Characteristics:
Characteristic
Supply Voltage
Supply Current
Vout Saturation Voltage
Output Leakage Current
Primary Conductor Resistance
Bandwidth
Output Rise Time
Output Falling Time
(T=+25˚C, Vdd=5.0V )
Min Typ Max Units
2.6
─
─
─
─
－
IP<Irp,
RL=2KΩ CL=20pf
IP>Iop,
RL=2KΩ CL=20pf
－
－
─
2.0
0.2
<0.1
8.3
10
1.0
0.3
18
5.0
0.6
10
─
－
10
1.5
V
mA
V
uA
mΩ
kHz
us
us
─
IP =0 A
IP> =Iop, Isink=10 mA
Vdd=5V, IP < Irp
Symbol Test Conditions
Vdd
Isupply
Vsat
I
leakage
R
primary
IP=
±
5 A
BW
Tr
Tf
All output-voltage measurements are made with a voltmeter having an input impedance of at least 100kΩ
Winson reserves the right to make changes to improve reliability or manufacturability.
©Winson, 2015/2/6
DIY/Open Source Hardware
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