As a single-chip high-side current-sense amplifier, ST’s new TSC1021 simplifies the design of accurate measurement circuitry in electronic control units. The TSC1021 provides a common-mode operating range of 2.8V to 30V and the device can withstand a range of -32V to +60V on its input pins without damage, enabling it to target a variety of applications such as automotive actuators and battery-powered products.
The device features output voltage drift of 100 ppm/°C maximum on the full temperature range; input offset drift 8uV/°C maximum on the full temperature range and an overall current consumption below 300uA. The operating temperature of the AEC-Q100 qualified IC ranges from -40 to 125°C.
In addition to its more focused common-mode voltage range, the TSC1021 benefits from high temperature stability, as well as high immunity to electromagnetic interference (EMI) thanks to its built-in filtering. These features permit use in equipment such as accurate positioning mechanisms and safety systems including use in automotive such as window control, electric doors and seats, cooling fan and fuel pump applications.
The TSC1021 is in production now in the TSSOP-8 package, priced at $0.68 in quantities of 1000