TSC888

TSC888 Low cost high-side current sense amplifier Features ■ ■ ■ ■ ■ ■ Independent supply and input common-mode voltages Wide common-mode operating range: 2.8 V to 24 V Wide supply voltage range: 4 to 24 V Low current consumption: ICC max = 1 mA Internally fixed gain: 20 V/V, 50 V/V or 100 V/V Buffered output Pin connections (top view) L SOT23-5 (Plastic package) Applications ■ ■ ■ ■ ■ Desktop computers and servers SMPS Photovoltaic/solar systems Battery chargers Notebook computers DC motor control Gnd 2 Vp 3 4 Vm Out 1 5 Vcc Description The TSC888 measures a small differential voltage on a high-side shunt resistor and translates it into a ground-referenced output voltage. The gain is internally fixed. Wide input common-mode voltage range, low quiescent current, and tiny SOT23-5 packaging make the TSC888 ideal for use in a wide variety of applications. Input common-mode and power supply voltages are independent. Common-mode voltage can range from 2.8 V to 24 V in operating conditions. Current consumption lower than 1 mA and wide supply voltage range allow to connect the power supply to either side of the current measurement shunt with minimal error. June 2008 Rev 1 1/7 www.st.com 7 Free Datasheet http://www.datasheet4u.net/ Application schematics and pin description TSC888 1 Application schematics and pin description The TSC888 high-side current-sense amplifier features a 2.8 V to 24 V input common-mode range that is independent of supply voltage. The main advanta...