DC 5V WCS1800 Hall Current Detection Sensor Module 35A Precise With Overcurrent Signal LED

The WCS1800 Hall Current sensor has two functions

• current detection
• over current protection (can be preset from 0.5A to 35.0A)

Features

• Operating voltage: DC 5V
• Current detection range: DC +-35A, AC 25A
• Linearity: K=60mV/A
• Limit current range: 0.5A to 35A(for on/off value output)
• Over current signal indicator LED
• Sampling current conversion analog voltage signal output and it can connect ADC; TTL level signal output and it can connect MCU IO port control
• Board size 37mm x 31mm
• Working temperature: 25 to 85C

What's in the box?

1 x WCS1800 Hall current detection sensor

Resources

Interface



VCC: power positive
DOUT: TLL high/low level signal output
GND: power negative
AOUT: sampling current signal conversion voltage output port

Analog voltage signal output (AOUT)

Relationship between detection current and analog signal output is shown below:

Analog signal output: V0=Vcc*0.5±la*K (la is actual current through current detection pin, and K is linearity)

Eg: Input current is 1A, Vcc=5V and WS1800 linearity is 60mV/A

1. When the current flows in from positive direction: V0=Vcc*0.5+la*K, V0=(2.5+0.06)V=2.56V
2. When the current flows in from negative direction: V0=Vcc*0.5-la*K, V0=(2.5-0.06)V=2.44V
3. If it is an AC signal: V0=Vcc*0.5+la*K, V0=(2.5+0.06)V=2.56V

The above are ideal values. There might be some precision errors.

On/Off output(DOUT)

1. Make sure the current flows in from the positive direction. Adjust to the desired current warning level.
2. LED will be on when current is below the setting and DOUT will be low.
3. When the detected current is higher than your setting, the LED will turn off and the DOUT pin will go high.

Note: Stock is currently available in South Africa for national shipping!