STMicroelectronics TSC2010IYDT

Overview

TSC2010IYDT from STMicroelectronics is a precision bidirectional current sense amplifier with 20 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 measurement in high-side or low-side configurations for industrial motor control and solenoid drive feedback loops.

For engineers reviewing the TSC2010IYDT datasheet, TSC2010IYDT pinout, TSC2010IYDT application, or TSC2010IYDT equivalent, key selection criteria include its guaranteed 0.3% max gain error over -40°C to +125°C, 20 µA shutdown current, SO8 package compatibility, and ability to resolve down to 123.6 mV full-scale sense voltage at 2.7 V supply while maintaining <0.03% linearity error.

Technical Context

The TSC2010IYDT employs a precision instrumentation amplifier topology optimized for high common-mode rejection (90–120 dB) across -20 V to +70 V inputs, independent of supply voltage. Its dual reference pins (VREF1/VREF2) support ratiometric output offset adjustment and enable bidirectional sensing with user-defined zero-current output level.

It features active shutdown (active-high SHDN), rail-to-rail output stage capable of ±30 mA sourcing/sinking, and stable operation with capacitive loads up to 680 pF. Small-signal bandwidth reaches 650 kHz (typ.) at 5 V supply, with slew rate of 5.7 V/µs under 230 mV input step - enabling fast transient current monitoring in closed-loop motor drives.

Key Specifications

Pinout & Package

Available in SO8 (small outline integrated circuit, 150 mil width) package with standard 1.27 mm pitch; RoHS-compliant, Pb-free, and halogen-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with INA240A1D, TSC2010IYDT offers integrated dual-reference architecture simplifying bidirectional design but trades 30 µV offset advantage for broader common-mode tolerance at negative rails. Versus TSC2011IYDT, it provides higher minimum sense voltage headroom essential for low-noise 12-bit ADC interfacing without amplification.

Availability

TSC2010IYDT is available at Aetrix Electronics and suitable for industrial motor control, solenoid actuation, and process instrumentation requiring stable component supply across extended temperature and voltage ranges.

Supply support for TSC2010IYDT 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, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

The TSC2010 belongs to ST's high-voltage precision current sense amplifier family, engineered specifically for robust, accurate shunt-based current monitoring in harsh industrial environments with wide supply and common-mode voltage requirements.

FAQ

What is the maximum allowable differential input voltage for TSC2010IYDT?

The absolute maximum differential voltage between IN+ and IN− is 7 V, per Table 2 in DS13057 Rev 8. Exceeding this risks permanent damage. For normal operation, the device is specified for ≤238.3 mV full-scale input at 5 V supply with ≤0.3% gain error - ensuring linear response within safe operating area.

Can TSC2010IYDT measure current in negative-voltage rails?

Yes - its -20 V to +70 V common-mode input range explicitly supports sensing on negative rails, such as -12 V or -24 V systems. The IN+ and IN− pins tolerate voltages down to -25 V (absolute max), enabling direct connection to shunts placed below ground in dual-supply or floating-bus applications.

How does the SHDN pin behave during power-up?

SHDN is an active-high input with 0.3×VCC low threshold and 0.7×VCC high threshold. At power-up, if SHDN is left floating or pulled low, the device remains in shutdown until SHDN exceeds 0.7×VCC. Internal weak pull-down is not present, so external pull-down or controlled GPIO sequencing is required for deterministic startup.

Is layout guidance available for minimizing noise in TSC2010IYDT circuits?

Yes - ST recommends separate analog and digital ground planes joined at single point near VCC/GND pins, 100 nF ceramic bypass capacitor placed <2 mm from VCC pin, and guard ring around IN+/IN− traces referenced to GND. Input traces must be matched in length and impedance, and VREF1/VREF2 should be decoupled with 10 nF capacitors to reduce reference noise coupling.