CZ-3705 Accurate Coreless Current Sensor IC

CZ-3705 Accurate Coreless Current Sensor IC

CZ-3705 Accurate Coreless Current Sensor IC

CZ-3705 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 is advantage 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.

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• 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 : ±0.4%F.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）
  

Specifications of CZ-3705 Accurate Coreless Current Sensor IC

• Type: SMD Voltage Regulator IC
  

• Input Voltage Range: 2V to 24V
  

• Output Voltage Range: Fixed output versions available (e.g., 3.3V, 5V)
  

• Output Current: Up to 500 mA (maximum, depending on version)
  

• Dropout Voltage: Typically 0.2V at 100 mA load current
  

• Quiescent Current: Typically 2 µA (low current consumption)
  

Package Includes

• 1 x CZ-3705 Accurate Coreless Current Sensor IC