سنسور و مبدل سنسور جریان

Product Attributes

Introduction

The CT425 is a high bandwidth and ultra-low noise integrated contact current sensor that uses Allegro patented XtremeSense™ TMR technology to enable high accuracy current measurements for many industrial, consumer, and automotive applications. The device supports eight current ranges where the integrated current carrying conductor (CCC) will handle up to 65 A of current and generates a current measurement as a linear analog output voltage. The device achieves a total output error of less than ±1.0% full-scale (FS). The device has a 300 ns output response time while the current consumption is ~6.0 mA and is immune to common mode fields. The CT425 has a filter function to reduce the noise on the output pin. The CT425 is offered in an industry-standard 8-lead SOIC package that is green and RoHS compliant.

Features

• Integrated contact current sensing for low to medium current ranges: 0 to 20 A, 0 to 50 A, ±20 A, ±50 A, 0 to 30 A, 0 to 65 A, ±30 A, ±65 A
• Integrated current carrying conductor (CCC)
• Linear analog output voltage
• Total error output ≤±1.0% FS
• 1 MHz bandwidth
• Response time: 300 ns
• UL/IEC 62368-1 and UL1577 certification
• Rated isolation voltage: 3.5 kVRMS
• Working voltage for basic isolation: 560 VRMS
• Working voltage for reinforced isolation: 280 VRMS
• Low noise: 9.0 to 13.5 mARMS (@fBW = 100 kHz)
• Supply voltage: 4.75 to 5.50 V
• Filter function to reduce noise on output pin
• Immunity to common mode fields: -54 dB
• AEC-Q100 grade 1
• 8-lead SOIC package

Applications

• Solar/power inverters
• Motor control
• UPS, SMPS, and telecom
• White goods power supplies
• Power utility meter
• Battery management
• Overcurrent fault systems protection