TSC1214IST

Overview

The TSC1214IST is a digital current, voltage, and temperature monitoring Analog Front End (AFE) manufactured by STMicroelectronics. It features a dual-path architecture with a 14-bit ADC for current sensing over a ±80 mV range and an 11-bit ADC for supply voltage and internal die temperature. The device operates on a 2.7 V to 4.5 V power supply within a -40 °C to +85 °C ambient temperature range. Communication is handled via an I²C interface supporting up to 400 kbit/s. It utilizes a MiniSO-8 package.

Feature Summary

• Dual ADC configuration: 14-bit for bidirectional low-side current sensing and 11-bit for voltage/temperature monitoring
• I²C digital interface compatible with Philips I²C version 2.1 standard
• Internal 32768 Hz time base for precise conversion timing control
• Low power consumption with standby current of 2 µA typical

Applications

• Low voltage power supply monitoring
• Digital power monitoring in industrial systems
• Energy consumption analysis in data centers

Procurement Notes

Verify the specific ordering code TSC1214IST corresponds to the MiniSO-8 package in tape and reel format. Confirm that the application environment remains within the specified operating free-air temperature range of -40 °C to +85 °C. Ensure the I²C bus voltage levels are compatible with the device's VIH and VIL specifications before integration.

Selection Notes

Select this component when low-side bidirectional current monitoring is required alongside simultaneous voltage and temperature tracking. The 14-bit resolution provides high precision for current measurements with a step size of 11.77 µV. Consider the 500 ms current conversion time and 250 ms voltage/temperature conversion time when designing system polling intervals. The MiniSO-8 footprint requires adherence to the recommended PCB layout dimensions provided in the datasheet.

Part Context

The TSC1214IST belongs to the TSC1214 family of digital power monitors from STMicroelectronics. It is designed specifically for monitoring low-voltage power rails using a shunt resistor connected between the IN pin and ground. The 'IST' suffix indicates the MiniSO-8 packaging and tape & reel delivery method.

Replacement Considerations

The TSC1641 is a related device offering similar functionality but supports high-side current topology and MIPI I3C communication. Verify if high-side sensing or higher speed interfaces are required before considering alternatives.