SX9300IULTRT

Touch Capacitive Sensor Overview

The SX9300IULTRT is a dual-channel capacitive Specific Absorption Rate (SAR) controller from Semtech’s PerSe Connect series. It operates on an input voltage range of 2.7 V to 5.5 V and features a 400 kHz I2C serial interface compatible with 1.8 V host processors. The device includes an on-chip SAR engine for distinguishing between human and non-human objects, offering automatic calibration and temperature compensation. Active mode current consumption is 170 μA, while sleep mode draws 2.5 μA. It utilizes a 3 mm x 3 mm thin QFN package and supports operation temperatures from -40°C to +85°C.

Touch Capacitive Sensor Feature Summary

• Dual-channel capacitive sensing inputs designed specifically for SAR compliance applications
• On-chip SAR engine capable of differentiating between human proximity and non-human objects
• Automatic calibration system that maintains peak performance across varying temperature, humidity, and noise conditions

Touch Capacitive Sensor Applications

• SAR compliance systems in portable electronics
• Laptops and notebook computers
• Tablet devices
• Mobile phones
• Mobile hotspots

Touch Capacitive Sensor Procurement Notes

Verify the specific ordering suffix and package variant against the official datasheet before procurement. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer. Ensure the selected component matches the required thermal and electrical specifications for the target application environment.

Touch Capacitive Sensor Selection Notes

Select this component for applications requiring precise SAR regulation and low power consumption. Consider the 2.7 V to 5.5 V operating range and I2C interface compatibility with the host processor. Evaluate the need for dual-channel sensing and automatic calibration features to simplify product development and ensure regulatory adherence.

Touch Capacitive Sensor Part Context

The SX9300 belongs to the PerSe Connect family, which enhances connectivity in wireless devices through advanced RF control and SAR optimization. This series targets smartphones, tablets, and laptops, providing high sensing performance and DC offset compensation to meet global SAR standards efficiently.

Touch Capacitive Sensor Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify functional equivalence with other PerSe SAR controllers if direct replacement is necessary.