The TSC240 from STMicroelectronics is a high-precision current sense amplifier featuring high voltage tolerance and 120dB PWM ripple rejection, making it suitable for accurate and reliable monitoring of automotive electric drive inverters, factory automation, industrial robots, and servers.
The TSC240 can handle common-mode voltages ranging from -4V to 100V, complies with the AEC-Q100 automotive standard, and supports industrial DC bus and existing 12V, 24V, and 48V automotive board net standards. Its high voltage withstand capability reduces the need for external protection components.
Additionally, the amplifier features a fixed internal gain of 20V/V, ensuring detection accuracy and repeatability while saving on external resistors. This allows designers to achieve compact circuit dimensions and minimize bill-of-material costs.
The TSC240 can detect bidirectional current with high precision, featuring a maximum gain error of only 0.2%, a gain drift of just 2.5 ppm/°C, a offset voltage of merely ±20µV, and a temperature drift of 150nV/°C. Its high common-mode rejection ratio (CMRR) ensures accurate current detection, maintaining precision even under varying common-mode voltages—such as in motor control applications—and guarantees stable measurement immunity against electrical noise.
The TSC240 can operate with a wide voltage range of 2.7V to 5.5V, withstand ambient temperatures from -40°C to 125°C, and is easy to integrate while tolerating harsh working conditions.
The TSC240 is now in production, available in both SO8 and TSSOP8 packages, including industrial-grade and automotive-grade models. For more product details, visit www.st.com/tsc240
