TSC888 Datasheet, PDF (1/7 Pages) STMicroelectronics – Low cost high-side current sense amplifier

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: I_CC max = 1 mA
■ Internally fixed gain: 20 V/V, 50 V/V or 100 V/V
■ Buffered output
Applications
■ Desktop computers and servers SMPS
■ Photovoltaic/solar systems
■ Battery chargers
■ Notebook computers
■ DC motor control
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.
L
SOT23-5
(Plastic package)
Pin connections
(top view)
Out 1
Gnd 2
Vp 3
5 Vcc
4 Vm
June 2008
Rev 1
1/7
www.st.com
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