The TSC1021 is a high-side current sense amplifier with a wide common-mode operating range and a reliable common-mode surviving range. Its features include a wide common-mode operating range, a maximum input offset voltage of ±1.5mV, a maximum total output voltage error of ±1.5%, and low current consumption.
The document describes the TSC1021, a high-side current sense amplifier designed to measure small differential voltages on shunt resistors. It features an input common-mode range independent of the supply voltage (2.8 V to 30 V) and includes protection for automotive conditions such as load-dump up to 60 V and reverse battery up to -32 V.
The device is available in a TSSOP8 package with internally fixed gains of 20 V/V or 50 V/V. Key specifications include low current consumption (max 450 µA), high common-mode rejection, and an operating temperature range from -40°C to +125°C.
| Input common-mode range (operating) | 2.8 to 30 V |
|---|---|
| Common-mode surviving range | -32 to 60 V |
| Maximum input offset voltage (25°C) | <= 1.5 mV |
| Operating temperature range | -40 to 125 °C |
| Internally fixed gain options | 20 V/V, 50 V/V |
The device is intended for automotive current monitoring, notebook computers, server power supplies, telecom equipment, industrial SMPS, current sharing, and LED current measurement.
The maximum junction temperature (Tj) is 150 °C.