CZ3723

Current Sensors Overview

The CZ3723 is a coreless current sensor IC from Asahi Kasei Microdevices utilizing Hall Effect technology. It provides unidirectional measurement with a continuous current rating of 60Arms and a maximum measurement range up to 68.8A. The device features an accuracy of ±1.7% and a sensitivity of 60mV/A. It operates on a supply voltage of 4.5V to 5.5V, delivering a ratiometric voltage output. The package is 10-SMD, supporting a working voltage over 550Vrms with reinforced insulation capabilities.

Current Sensors Feature Summary

• Achieves clearance and creepage distances of 8.0mm or more through original package design.
• Generates low heat due to primary conductor resistance of 0.27mΩ.
• Supports 5V output for applications requiring severe transmission noise immunity.

Current Sensors Applications

• Phase current detection for AC motors
• General-purpose inverters
• DC detection of power conditioners for photovoltaic systems

Current Sensors Procurement Notes

Verify the specific suffix variant against the official datasheet to confirm pinout and electrical characteristics. Ensure the selected package matches the 10-SMD requirement for PCB layout compatibility. Cross-reference the operating temperature range and insulation ratings with system safety standards before finalizing procurement orders.

Current Sensors Selection Notes

Select this component for designs requiring high isolation voltage and low thermal generation in a compact form factor. The 5V output interface is suitable for systems with significant transmission noise. Consider the ±1.7% accuracy specification when designing precision control loops for motor drives or solar inverters.

Current Sensors Part Context

Part of the CZ370/372 series of coreless current sensors developed by Asahi Kasei Microdevices. This series shares package profiles with the CZ3A series but supports 5V outputs compared to the 3.3V support of the CZ3A series. The technology leverages AKM's long-standing expertise in Hall element manufacturing.

Current Sensors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs if considering alternative models within the same product family.