CT455-H48B3-TS08

Current Sensors Overview

The CT455-H48B3-TS08 is a high-bandwidth, low-noise contactless current sensor utilizing XtremeSense™ TMR technology. It operates on a supply voltage of 3 V to 3.6 V and delivers an analog output at 3.3 V. The device features a frequency range of 1 MHz and supports a bipolar sensing range of ±48 mT. Designed for high dV/dt applications, it offers a response time of less than 300 ns with a typical current consumption of approximately 6.0 mA. The component is housed in an 8-lead TSSOP package with dimensions of 6.4 mm length and 1.1 mm height, suitable for board mounting.

Current Sensors Feature Summary

• Utilizes patented XtremeSense™ TMR technology for high magnetic sensitivity and low noise performance
• Optimized for high dV/dt applications with fast response time under 300 ns
• Provides user-programmable gain and offset calibration for line-end accuracy
• Features factory-programmed temperature compensation for gain and offset drift

Current Sensors Applications

• Motor control systems requiring precise current feedback
• Electric vehicle powertrain monitoring
• Industrial automation and robotics drives
• Battery management systems in consumer electronics

Current Sensors Procurement Notes

Verify the specific suffix TS08 confirms the TSSOP-8 package configuration and pinout compatibility with your PCB footprint. Ensure the ±48 mT field range aligns with your magnetic circuit design. Confirm that the 3 V to 3.6 V operating voltage matches your system's power rail. Check for any obsolescence notices or lifecycle status updates from Allegro MicroSystems before finalizing procurement plans.

Current Sensors Selection Notes

Select this model when high bandwidth up to 1 MHz is required for accurate dynamic current measurement. Choose the H48B3 variant specifically for its ±48 mT sensing range and factory-calibrated offset/gain settings. Consider the low 6.0 mA current consumption for battery-sensitive designs. Ensure the application environment stays within the +125 C maximum operating temperature limit.

Current Sensors Part Context

This part belongs to the CT455 series of advanced non-contact current sensors from Allegro MicroSystems. It leverages tunnel magnetoresistance (TMR) technology to provide superior signal-to-noise ratio compared to traditional Hall-effect sensors. The series is designed to replace bulky shunt resistors, offering galvanic isolation and reduced power loss in compact 8-lead packages.

Current Sensors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify mechanical and electrical compatibility if considering alternative TMR sensors from other manufacturers. Check if the CT456 series offers necessary differential sensing features if common-mode rejection is required.