Product Summary

The CT42x series are high-bandwidth, fast-response, ultra-low-noise board-mount current sensors using Allegro MicroSystems' patented XtremeSense ™ TMR technology, enabling highly accurate current measurements for many consumer, enterprise and industrial applications. Supporting eight current ranges, the Current Carrying Conductor (CCC) handles currents up to 65A and produces the current measurement as a linear analog output voltage. It achieves a total output error of ±1.0% full scale (FS) over the entire voltage and temperature range.

The CT42x series is offered in an industry standard 8-lead SOIC package that is green sourcing and RoHS compliant.

Product features

・Power supply voltage 5V: CT425 & CT428, power supply voltage 3.3V: CT426 & CT427
Built-in 0.5mΩ conductor
・Total Error Output: 1% FS (typ.)
・ 300ns Response time, 1MHz Bandwidth
・ 9m ARMS Low noise
Immunity to common mode fields:-54dB
Rated insulation voltage: 4 kVRMS End
・ UL/IEC62368-1 and UL1577 Certification
・ IEC61000-4-5 Certification
・ AC or DC Current range:
- +20.0 ADC/±20.0 APK
　　- +30.0 ADC/±30.0 APK
　　- +50.0 ADC/±50.0 APK
　　- +65.0 ADC/±65.0 APK
·pin #6 Features
- CT427 and CT428: Overcurrent detection output pin
　　- CT425 and CT426: Enhancement filter for noise reduction

Target application

• Solar/Power Inverter
• UPS, SMPS and Telecom Power Supplies
• Battery Management System
• motor control
• white goods
• Power meter
• Overcurrent Protection

Click here for the manufacturer's site

• CT42x Product Page
• CT425 Datasheet
• CT426 Datasheet
• CT427 Datasheet
• CT428 Datasheet
• Evaluation board: ACSEVB-LC8-LZ6

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