General Description

CZ-3701 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 60Arms continuous current. Existing coreless current sensors have an accuracy disadvantage from degradations caused by a disturbed magnetic field. The CZ-370x series has a built-in stray magnetic field reduction function to suppress this effect. The CZ-370x series is also UL 61800-5-1 safety compliant, which is an excellent fit for industrial AC drives, servo motors, etc. The CZ-370x series has a large variety of linear measurement ranges, from ±5.3A (CZ-3700), to ±180A, (CZ-3706). This enables the designer to use the same board design across different products and helps the user to expand the options to different current ratings.

Features

□ Compliant with safety standard of UL61800-5-1 (Clearance, Creepage distance ≧ 8.0mm)

□ Certified with safety standards of UL-1577 and IEC/UL62368-1.

□ Maximum Primary Current : 60Arms

□ High-accuracy : ±0.4F.S.(Ta=0~90°C Typ.)

□ Quite small primary conductor resistance : 0.27mΩ Typ.

□ Fast response time : 1μs Typ.

□ Stray magnetic field reduction function

□ Small-sized surface mount package（12.7mm×10.9mm×2.25mm）

□ Differential output with VREF pin

□ Isolation Voltage：3.0kV（AC50Hz，60s）

□ Ratiometric output

Applications

□AC motors

□DC motors

□UPS

□General Inverters

□Power conditioners

CZ3701属于传感器，变送器 > 电流传感器。旭化成微电子株式会社制造生产的CZ3701电流传感器电流传感器用于检测并响应电线或电路中的电流变化。传感器类型包括电流开关式、磁通门式、霍尔效应式、电流指示器、电流传感器、磁调制器、磁阻式和变压器式（带调节功能），电流检测范围可编程设置在 5mA 至 2500A 之间，可用于测量交流或直流电流。