# WCS2705

## Hall Effect Base Linear Current Sensor Features:

· Low noise analog signal path
· 8.3 mΩ internal conductor resistance
· Output voltage proportional to AC and DC current
· Minimum sensing current: 0~5.0A at 5V
· High Sensitivity: 255 mV/A
· Operating Voltage: 3.0~12 V
· Operating Current: 3mA
· Nearly zero magnetic hysteresis
· Ratiometric output
· 10K Hz bandwidth

## Functional Description :

· Designed for DC and AC current sensing in industrial, commercial, and communication systems.
· Applications include motor control, load detection, over-current fault detection, and power management.
· Uses a linear Hall sensor IC with temperature compensation and a low-resistance current path (8.3 mΩ) to reduce power loss.
· Electrically isolated terminals for applications requiring electrical isolation.

## Electrical Characteristics (T=+25˚C, Vdd=5.0V):

Characteristic	Symbol	Min	Typ	Max	Units
Supply Voltage	Vcc	3.0	-	12	V
Supply Current	Isupply	-	3.5	6.0	mA
Zero Current Vout	V0G	2.4	2.5	2.6	V
Primary Conductor Resistance	Rprimary	-	8.3	-	mΩ
Sensitivity	△Vout	217	255	293	mV/A
Bandwidth	BW	-	10	-	kHz
Measurable Current Range (DC)	MCR	-	±7.5	-	A
Measurable Current Range (AC RMS)	MCR	-	5	-	A
Temperature Drift	△Vout	-	±0.5	-	mV/℃

Notes:

· Output voltage measurements require a voltmeter with ≥100kΩ input impedance.
· Do not load the output pin.