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TSC1021 Datasheet(PDF) 1 Page - STMicroelectronics |
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TSC1021 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 12 page  September 2010 Doc ID 17857 Rev 1 1/12 12 TSC1021 High-side current sense amplifier Features ■ Wide common-mode operating range independent of supply: 2.8 to 30 V ■ Wide common-mode surviving range: -32 to 60 V (reversed battery and load-dump conditions) ■ Maximum input offset voltage: – ±1.5 mV for Tamb = 25°C – ±2.3 mV for -40°C < Tamb < 125°C ■ Maximum total output voltage error: – ±1.5% for Tamb = 25°C – ±2.5% for -40°C < Tamb < 125°C ■ Maximum variation over temperature: –dVos/dT = 8 µV/°C –dVout/dT = 100 ppm/°C ■ Low current consumption: ICC max = 300 µA ■ -40 to 125°C operating temperature range ■ Internally fixed gain: 20 V/V, 50 V/V ■ EMI filtering Applications ■ Automotive current monitoring ■ Notebook computers ■ Server power supplies ■ Telecom equipment ■ Industrial SMPS ■ Current sharing ■ LED current measurement Description The TSC1021 measures a small differential voltage on a high-side shunt resistor and translates it into a ground-referenced output voltage. The TSC1021 has been specifically designed to deal with automotive conditions: load-dump protection up to 60 V, reverse-battery protection up to -32 V, ESD protection up to 4 kV and internal filtering for EMI performance. Input common-mode and power supply voltages are independent: the common-mode voltage can range from 2.8 to 30 V in operating conditions and up to 60 V in absolute maximum ratings while the TSC1021 can be supplied by a 5 V independent supply line. The TSC1021 is housed in a tiny TSSOP8 package and integrates a buffer that provides low impedance output to ease interfacing and avoid accuracy losses. The overall device current consumption is lower than 300 µA. TSSOP8 (Plastic package) www.st.com |
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