TSC1641IQT

Overview

The TSC1641IQT is a high-precision analog front-end (AFE) for digital power monitoring, integrating a 16-bit dual-channel sigma-delta ADC. It synchronously measures shunt current and load voltage up to 60 V with bidirectional, high-side, or low-side sensing capabilities. The device supports MIPI I3C at 12.5 MHz and I²C/SMbus at 1 MHz. Key electrical parameters include a 2.7 V to 3.6 V supply range, ultra-low input bias current of 20 pA typical, and shutdown current of 50 nA typical. It features programmable conversion times from 128 µs to 32.7 ms and internal die temperature monitoring within an extended -40 °C to +125 °C operating range.

Feature Summary

• 16-bit resolution dual-channel sigma-delta ADC with simultaneous sampling for accurate DC power computation
• Flexible digital interface supporting MIPI I3C up to 12.5 MHz and I²C/SMbus up to 1 MHz
• Ultra-low input bias current (20 pA typical) and shutdown current (50 nA typical)
• Integrated alert generation for over/undervoltage, over/undercurrent, overpower, and overtemperature conditions

Applications

• Industrial battery packs
• Power inverters
• DC power supplies
• Data centers
• Telecom equipment

Procurement Notes

Verify the ordering suffix 'IQT' against the official STMicroelectronics datasheet DS14338 to confirm specific package variants, tape-and-reel specifications, or regional compliance markings. Ensure compatibility with system voltage levels and bus protocols before integration.

Selection Notes

Select this component for applications requiring synchronized current and voltage measurement with high precision. The choice between I²C and MIPI I3C depends on the host microcontroller's interface support. Consider the 3x3 mm DFN10 package constraints for PCB layout and thermal management in space-limited designs.

Part Context

The TSC1641 belongs to STMicroelectronics' digital current and power monitor portfolio, designed to transmit significant power unit information to microcontrollers like the STM32H5 series. It complements other models such as the TSC1214 by offering both high-side and low-side current topologies with advanced MIPI I3C connectivity.

Replacement Considerations

The TSC1214 is a related model but lacks high-side current sensing and MIPI I3C support, offering only standard I²C communication. Verify interface compatibility and topology requirements when considering substitutes.