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CT450 Datasheet(PDF) 1 Page - Allegro MicroSystems |
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CT450 Datasheet(HTML) 1 Page - Allegro MicroSystems |
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1 / 29 page  The CT450 is a high-bandwidth and low-noise integrated contactless current sensor that uses Allegro patented XtremeSense™ TMR technology to enable high-accuracy current measurements for many consumer, enterprise, and industrial applications. The device supports six standard field ranges where the CT450 senses and translates the magnetic field into a linear analog output voltage. The device achieves a total error output of less than ±1.0% over voltage and temperature after calibration. The CT450 is also available in a user-programmable variant which enables end-of-line calibration of gain, while the sensor is preprogrammed to adjust offset and compensate temperature drift. The ability to adjust gain relaxes mechanical tolerances during sensor mounting. The device has less than 300 ns output response time while the current consumption is about 6.0 mA. The CT450 is equipped with a filter function to reduce noise on the output pin. The CT450 is housed in an 8-lead SOIC package and a low- profile, industry-standard 8-lead TSSOP package that are both green and RoHS compliant. CT450-DS, Rev. 3 MCO-0001530 • User-programmable field range: □ 6 to 24 mT • Preset magnetic field ranges: □ 0 to 6 mT □ ±6 mT □ 0 to 12 mT □ ±12 mT □ 0 to 24 mT □ ±24 mT • Linear analog output voltage • 1 MHz bandwidth • Response time: <300 ns • Reference voltage output for unipolar/bipolar field measurements • Supply voltage: 4.75 to 5.50 V • Low noise performance • Filter pin to reduce noise on output • Package options: □ 8-lead SOIC □ 8-lead TSSOP XtremeSense™ TMR Contactless Current Sensor with 1 MHz Bandwidth and Programmable Gain PACKAGES: Not to scale CT450 FEATURES AND BENEFITS DESCRIPTION March 6, 2024 • Solar/power inverters • Battery management systems • Industrial equipment • Power utility meters • Power conditioner • DC/DC converters APPLICATIONS Figure 1: CT450 Functional Block Diagram for SOIC-8 8-lead SOIC 8-lead TSSOP Figure 2: CT450 Functional Block Diagram for TSSOP-8 FUNCTIONAL BLOCK DIAGRAMS |
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