Accurate measurement with high-performance current sense amplifiers
Each time you manage batteries or motors, you need current sensing.
Sensing the current flow is fundamental in many systems such as motor control, battery management systems, and wireless infrastructure.
ST’s current sense amplifiers measure small voltage drops across shunt resistors with minimal error and offer excellent performance in many industrial and automotive applications. ST proposes a wide variety of current sensing able to measure the current either in bidirectional mode, or in unidirectional mode, but also able to address over-current protection features. ST’s current sense amplifiers offer the advantages of wide input common-mode voltage for high-side and in-line current sensing, and a cost-effective solution for low-side measurement.
Safety
Control
Status indication
Efficiency
TSC240 precision current sense amplifier
TSC240 precision current sense amplifier
The TSC240 is a cutting-edge zero-drift current sense amplifier designed for high-precision current measurement. Ideal for demanding applications such as motor control, power management, and battery monitoring, the TSC240 ensures robust performance and enhanced system efficiency.
Use cases and application examples
Meet our current sensing portfolio
ST's current sense amplifier IC portfolio offers a large variety of high-performance devices:
- High-voltage current sense amplifier: the TSC2020 can sense current via a shunt resistor over a wide range of common-mode voltages, from -4 to +100 V, to address a variety of voltage rails.
- Current sense amplifier with open-drain comparator and reference: the TSC200/201/202 integrates an open-drain comparator with output latch function and an internal 0.6 V voltage reference connected to its input.
- Current sense amplifiers with extended temperature: the TSC2010/2011/2012 are available in both industrial and extended temperature range.
- Current sense amplifiers based on zero-drift architecture: the TSC210/211/212/213/214/215 can sense current via a shunt resistor over a wide range of common-mode voltages from -0.3 to +26 V, whatever the supply voltage is.
| Accuracy | Input voltage | Direction | Configuration | Gain | Grade | Temperature range | Discover more |
|---|---|---|---|---|---|---|---|---|
| TSC2020 TSC2021 TSC2022 | 150 μV | -4 to 100 V | Bidirectional | low-side | x20 | Automotive | -40 to 125°C | |
| TSC200 TSC201 TSC202 | 2.5 μV | -16 to 80 V | Unidirectional | low-side | x20 | Automotive | -40 to 125°C | |
| TSC2010 TSC2011 TSC2012 | 200 to 500 μV | -20 to 70 V | Bidirectional | low-side | x20 | Automotive | -40 to 150°C | |
| TSC210 TSC211 TSC212 TSC213 TSC214 TSC215 | 35 to 100 μV | -0.3 to 26 V | Bidirectional | low-side | x200 | Automotive | -40 to 125°C | |
| TSC240 | 20 µV | -4 to 100 V | Bidirectional | low-side | x20 | Automotive | -40 to 125°C |
Key features
- High-precision current sensing to reduce shunt resistor size
- Integrated gain to reduce numbers of components vs. discrete solution
- Integrated gain to obtain better gain accuracy vs. discrete solution
- Extended temperature range for wide application uses
- High ESD tolerance ensured for more robustness