CA-IS23XXXS Precision 120kHz Hall-Effect Current Sensor with 3.75kVRMS Isolation Voltage and Zero Current Output Voltage Reference

Features

• Differential hall sensing rejects common-mode fields and nearly zero magnetic hysteresis
• Integrated digital temperature compensation circuitry allows for near closed loop accuracy
• High immunity to external magnetic fields
• Precision zero-current reference output
• Primary conductor resistance: 1mΩ
• High current sense range capability
  • CA-IS23025S: ±25APK
  • CA-IS23030S: ±30APK
  • CA-IS23050S: ±50APK
• Fast response
  • Signal bandwidth: 120kHz
  • Propagation delay: 2µs
  • Response time: 3.7µs
• Operating supply voltage: 4.5V to 5.5V
• Bidirectional and unidirectional current sensing
• -40°C to +150°C Operating Junction Temperature Range
• Robust Galvanic Isolation
  • 3750VRMS withstand isolation voltage
  • 297VRMS maximum working isolation voltage
  • 6kV maximum surge isolation withstand voltage
• 8-pin narrow-body SOIC8 (S) Package
• Safety regulatory approvals
  • UL certification according to UL 1577
  • TUV certification

Applications

• Solar Energy
• Motor Control
• EC Charging
• Power Supplies
• Industrial AC/DC and DC/DC

General Description

The CA-IS23xxxS family is a series of highly accurate and cost-effective current sensor IC suitable for AC/DC current sensing in a variety of industrial, commercial, and communications systems. It features a low-offset, linear Hall sensor circuit and a copper conduction path that generates a magnetic field when current flows through it. The integrated Hall IC senses this magnetic field and converts it into a proportional voltage output, which has a positive slope proportional to the current flowing through the primary copper conduction path. The device senses current differentially, rejecting common-mode fields and improving accuracy in magnetically noisy environments. With its 1mΩ internal resistance, the primary copper conduction path offers low power loss and high inrush current withstand capability.

The CA-IS23xxxS is available in 8-pin narrow-body SOIC packages. The CA-IS23xxxS is rated for operation at junction temperatures of -40°C to +150°C.