High accuracy 3V coreless current sensor with more than 8mm of creepage / clearance distance

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CZ-3AG6 is an open-type current sensor using Hall sensors, which outputs the analog voltage
proportional to the AC/DC current. Group III-V semiconductor thin film is used as the Hall sensor, which
enables the high-accuracy and high-speed current sensing. Coreless ultra-small surface mount package
realizes the space-saving. Also, the low primary conductor resistance suppresses heat generation to
achieve the 50Arms continuous current. Existing coreless current sensors have an accuracy
disadvantage from degradations caused by a disturbed magnetic field. The CZ-3AGx series has a
built-in stray magnetic field reduction function to suppress this effect. The CZ-3AGx series also has dual
overcurrent detection function. The CZ-3AGx series is UL 61800-5-1 safety compliant, which is an
excellent fit for industrial AC drives, servo motors, etc. The CZ-3AGx series is also an excellent fit to
input the sensor signal into a 3V AD converter. The CZ-3AGx series has a large variety of linear sensing
ranges, from ±11.6A (CZ-3AG1), to ±116.6A, (CZ-3AG7). This enables designers to use the same board
design across different current rating products.

Key Features

□ Compliant with safety standard of UL61800-5-1 (Clearance, Creepage distance ≧ 8.0mm)
□ Certified with safety standards of UL-1577 and IEC/UL60950-1
□ 3V Output
□ Maximum Primary Current : 50Arms
□ High-accuracy : 0.4%F.S.(Ta=35~85°C Typ.)
□ Quite small primary conductor resistance : 0.27mΩ Typ.
□ Stray magnetic field reduction function
□ Small-sized surface mount package(12.7mm×10.9mm×2.25mm)
□ Dual overcurrent detection function (Adjustable overcurrent detection thresholds)
□ Isolation Voltage:3.0kVrms(AC50Hz,60s)
□ Non-ratiometric output

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Block Diagram

Block Diagram

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