TSC201IST

Instrumentation, Op Amps, Buffer Amps Overview

The TSC201IST is a high-side current sense amplifier from STMicroelectronics, featuring an amplification gain of 50 V/V. It operates with a supply voltage range of 2.7 to 18 V and supports a wide common-mode input voltage from -16 to +80 V. The device integrates an open-drain comparator with latching capability and an internal 0.6 V reference. Key electrical parameters include a maximum quiescent current of 1.8 mA, a bandwidth of 0.4 MHz, and a slew rate of 7 V/µs. It is qualified under AEC-Q100 standards for automotive applications and functions within a temperature range of -40 to +125 °C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Integrates an open-drain comparator with output latch function and an internal 0.6 V voltage reference connected to its input.
• Supports high-voltage tolerance with a wide common-mode voltage range from -16 to +80 V regardless of the supply voltage.
• Provides high accuracy with a maximum total output error of 3.5% across the full temperature range.
• AEC-Q100 qualified for robust performance in demanding automotive environments.

Instrumentation, Op Amps, Buffer Amps Applications

• High-side current sensing
• Low-side current sensing
• Overcurrent protection
• Automotive current sensing
• Telecom equipment

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix IST corresponds to the MiniSO-8 package when sourcing. Confirm that the component meets AEC-Q100 qualification requirements if deploying in automotive systems. Ensure the design accounts for the specified common-mode voltage limits and supply voltage range during integration. Cross-reference the datasheet revision to confirm pinout and electrical characteristics match the intended application constraints.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select the TSC201IST when a fixed gain of 50 V/V is required for precise current measurement. Consider this part for designs needing integrated overcurrent protection via the built-in comparator. Evaluate the 0.4 MHz bandwidth against signal frequency requirements. Verify compatibility with the MiniSO-8 footprint and ensure the system can accommodate the 1.8 mA maximum quiescent current consumption.

Instrumentation, Op Amps, Buffer Amps Part Context

The TSC201IST belongs to the TSC20x family of high-voltage current sense amplifiers, which also includes the TSC200 (20 V/V) and TSC202 (100 V/V). These devices share a common architecture offering wide common-mode voltage handling and integrated comparator functionality. The TSC201 variant specifically targets applications requiring a moderate amplification factor between the lower-gain TSC200 and higher-gain TSC202 models.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

TSC200IST

Instrumentation, Op Amps, Buffer Amps FAQ

What is the function of the RESET pin on the TSC201?

The RESET pin is an active-low input used to reset the internal comparator. If left open or grounded, the comparator powers up in a defined reset state.

How does the TSC201 handle low differential input voltages?

The device is not designed for extremely low currents; when the sense voltage drops below 20 mV, larger than normal offset errors may appear due to reduced transconductance.