STMicroelectronics TSC2011IYDT

Overview

TSC2011IYDT from STMicroelectronics is a precision bidirectional current sense amplifier with 60 V/V fixed gain, -20 to +70 V wide common-mode input range, ±200 µV max offset voltage, and operation from 2.7–5.5 V supply. It enables high-accuracy shunt-based current monitoring in high-side or low-side configurations for industrial motor control and solenoid drivers.

For engineers reviewing the TSC2011IYDT datasheet, TSC2011IYDT pinout, TSC2011IYDT application, or TSC2011IYDT equivalent, this device supports precision DC/low-frequency current measurement down to ±40 mV full-scale sensing range with <0.3% gain error and 5 µV/°C offset drift - critical for closed-loop feedback and overcurrent protection in harsh environments.

Technical Context

The TSC2011IYDT uses a precision instrumentation amplifier topology optimized for high common-mode rejection (≥85 dB) across -20 to +70 V, enabling accurate differential sensing of millivolt-level shunt voltages even under large common-mode transients. Its rail-to-rail output stage delivers up to ±30 mA drive capability into 10 kΩ loads while maintaining linearity within 0.03%.

It integrates dual reference inputs (VREF1/VREF2) for ratiometric offset adjustment and features an active-high shutdown pin that reduces quiescent current to 20 µA. The device operates across -40 to +125 °C and maintains stable small-signal bandwidth (≥500 kHz at VCC = 5 V) independent of common-mode voltage.

Key Specifications

Pinout & Package

Supplied in SO8 package (ECOPACK2, RoHS-compliant), 5.0 mm × 4.0 mm body, 1.27 mm pitch, with exposed pad for thermal enhancement.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar bidirectional current sense amplifier applications.

Compared with INA240A1IDR and TSC2010IYDT, the TSC2011IYDT uniquely balances mid-range gain (60 V/V), ultra-low offset drift (5 µV/°C), and dual-reference ratiometric trimming - making it optimal for industrial motor drives requiring both accuracy and thermal stability without external calibration.

Availability

TSC2011IYDT is available at Aetrix Electronics and suitable for industrial process control, motor control, and solenoid driver applications requiring stable component supply across extended temperature and voltage ranges.

Supply support for TSC2011IYDT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in power management, analog, MEMS, and microcontrollers for industrial, automotive, and consumer markets.

The TSC201x family was designed specifically for high-accuracy, high-common-mode current sensing in rugged industrial environments - emphasizing low drift, wide supply range, and robust ESD tolerance without sacrificing bandwidth.

FAQ

What is the minimum shunt voltage the TSC2011IYDT can accurately measure?

The TSC2011IYDT supports a minimum full-scale sense voltage of ±40 mV while maintaining ≤0.3% gain error across temperature. At 25 °C, its typical operating range extends down to ±39.3 mV (min) with 60 V/V gain, enabling use with 1 mΩ shunts at 40 A peak current. Input offset and drift contribute <0.5% additional error at this level.

Can the TSC2011IYDT be used in high-side configuration with a 48 V bus?

Yes - its -20 V to +70 V common-mode input range fully covers 48 V bus operation, including transients and ground bounce. When placed high-side, IN+ connects to the 48 V rail and IN− to the shunt's load side. No level-shifting circuitry is required, and CMRR remains ≥85 dB across the full range.

How does the dual-reference (VREF1/VREF2) feature improve measurement accuracy?

VREF1 and VREF2 allow ratiometric offset adjustment: applying identical voltages (e.g., VCC/2) to both pins centers the output at that voltage regardless of supply variation. This eliminates errors from VCC drift and enables true ratiometric operation with ADC references derived from the same source, improving system-level accuracy by up to 0.1%.

Is the TSC2011IYDT pin-compatible with other devices in the TSC201x family?

Yes - TSC2010IYDT, TSC2011IYDT, and TSC2012IYDT share identical SO8 pinout, electrical interface, and functional block diagram. Only the internal gain differs (20/60/100 V/V). This allows drop-in replacement during design iteration or production ramp without PCB changes, provided the new gain aligns with shunt sizing and output range requirements.