Linear Current Sensor with differential outputs

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Andrea Snow
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Linear Current Sensor with differential outputs Features: 4Xmm current conductor through hole Output voltage proportional to AC and DC current Built-in AC to DC rectifier circuit Wide sensing current

~ V Low operating current ma Isolation voltage 4V Ratiometric output from supply voltage K Hz Bandwidth Two bronze sticks for easy soldering on PCB Functional Description : The Winson current sensor

1 Linear Current Sensor with differential outputs Features: 4Xmm current conductor through hole Output voltage proportional to AC and DC current Built-in AC to DC rectifier circuit Wide sensing current range ~ A at 5V volt High sensitive differential outputs Single Ended, Sensitivity: 8mV/A Differential output, Sensitivity: 6mV/A Wide operating voltage range.~ V Low operating current ma Isolation voltage 4V Ratiometric output from supply voltage K Hz Bandwidth Two bronze sticks for easy soldering on PCB Functional Description : The Winson current sensor provides economical and precise solution for both DC and AC current sensing in industrial, commercial and communications systems. The unique package provides easy implementation without breaking original system and make current sensing possible. Typical applications include motor control, load detection and management, over- current fault detection and any intelligent power management system etc The consists of a precise, low-temperature drift linear hall sensor IC with temperature compensation and a 4Xmm through hole. Users can use system s own electric wire by pass it through this hole to measure passing current. This design allow system designers to monitor any current path without breaking or changing original system layout at all. Any current flowing through this hole will generate 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 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 Semiconductor Corp. 9// Page

2 Winson Semiconductor Corp. 9// Page

Function Block: Electrical Characteristics: (T=+5 C, Vdd=5.V ) Characteristic Symbol Test Conditions Min Typ Max Units Supply Voltage Vdd. V Supply Current Isupply IP = A.5 6.

3 Function Block: Electrical Characteristics: (T=+5 C, Vdd=5.V ) Characteristic Symbol Test Conditions Min Typ Max Units Supply Voltage Vdd. V Supply Current Isupply IP = A.5 6. ma Zero Current Vout VG/ IP = A(DC Mode)..5.7 V Zero Current Differential Vout VG- IP = A(DC Mode) V Conductor Through Hole 4X mm² Sensitivity (Single Ended) Vout/ IP= +- A mv/a Sensitivity (Differential) Vout IP= +- A mv/a Bandwidth BW - - khz Measurable Current Range MR Vdd=5V (DC Mode) - ± - Vdd=5V (AC RMS ) A Temperature Drift Vout IP = A - ±. - mv/ Output Noise V Np-p IP = A 6.6 V Np-p(.uF) IP = A, C =.uf mv. All output-voltage measurements are made with a voltmeter having an input impedance of at least kω. Do not apply any resistor load on output pin, it will degrade IC s performance Winson Semiconductor Corp. 9// Page

4 Differential Output--Vout(V) Differential Output--Vout(V) Output Voltage--Vout(V) Output Voltage--Vout(V) Sensitivity (V/A) Sensitivity (V/A) Characteristic Diagrams: Sensitivity V.S Supply Voltage Supply Voltage--Vdd(V) Sensitivity V.S Supply Voltage Supply Voltage--Vdd(V) 5 4 Vout V.S IP with Vdd 5V y =.8x R² =.9996 y = -.84x R² = Primary Current--IP(A) Vouts V.S IP with Vdd.V y =.565x R² = y = -.57x +.7 R² = Primary Current--IP(A) Differential Output V.S IP with Vdd 5V y =.6x +.46 R² = IP(A) Differential Output V.S IP with Vdd.V - - y =.4x +.59 R² = IP(A) Winson Semiconductor Corp. 9// Page 4

Sensitivity standardization of C (5V) V.S Temperature...8.6.4.. -4 C - C - C - C C C C C 4 C 5 C 6 C 7 C 8 C 9 C C C C ratio.95.8.44.54.54.4.5.97.94.95.867.86.786.74.697.

5 Sensitivity standardization of C (5V) V.S Temperature C - C - C - C C C C C 4 C 5 C 6 C 7 C 8 C 9 C C C C ratio Sensitivity standardization of C (.V) V.S Temperature C - C - C - C C C C C 4 C 5 C 6 C 7 C 8 C 9 C C C C ratio Application Circuit: Capacitor C( C)(.uF~.uF) is recommend to be connected between Vout( Vout) and GND to reduce output noise. Winson Semiconductor Corp. 9// Page 5

6 Package Information:( Unit : mm) Winson Semiconductor Corp. 9// Page 6

Current Transducer CTSR 1-P = 1A

Current Transducer CTSR 1-P = 1A Current Transducer CTSR 1-P I PRN = 1A For the electronic measurement of current: DC, AC, pulsed..., with galvanic isolation between the primary (high power) and the secondary circuit (electronic circuit).