Current-sending ICs

31 August 2011 Analogue, Mixed Signal, LSI

STMicroelectronics is targeting precision control of functions such as battery monitoring, power management and motor control with its latest generation of high-side current-sensing ICs.

As a single-chip, high-side current-sense amplifier, the TSC1021 simplifies the design of accurate measurement circuitry in electronic control units.

The IC provides a common-mode operating range of 2,8 V to 30 V and can withstand a range of -32 V to +60 V on its input pins without damage, making it suitable for a variety of applications at a competitive price for equipment such as automotive actuators and battery-powered products.

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 will safeguard performance in industrial and automotive environments, and 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 device’s output voltage drift is 100 ppm/°C maximum over the full temperature range, while input offset drift is 8 μV/°C maximum, also over the full temperature range. Overall current consumption is below 300 μA.

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