TSC102 Datasheet, PDF (1/24 Pages) STMicroelectronics – High-side current sense amplifier plus signal conditioning amplifier

TSC102
High-side current sense amplifier plus signal conditioning amplifier
Features
■ Independent supply and input common-mode
voltages
■ Wide common-mode operating range:
2.8 to 30 V
■ Wide common-mode surviving range:
-16 to 60 V (reversed battery and load-dump
conditions)
■ Low current consumption: I_CC max = 420 µA
■ Output amplifier for tailor-made signal
conditioning
■ -40 to 125° C operating temperature range
■ 4 kV ESD protection
Applications
■ Battery chargers
■ Automotive current monitoring
■ Notebook computers
■ DC motor control
■ Photovoltaic systems
■ Precision current sources
■ Uninterruptible power supplies
■ High-end power supplies
Description
The TSC102 measures a small differential voltage
on a high-side shunt resistor and translates it into
a ground-referenced output voltage.
The device’s wide input common-mode voltage
range, low quiescent current and tiny TSSOP8
packaging enable use in a wide variety of
applications (also available in SO-8 package).
The input common-mode and power supply
voltages are independent. The common-mode
voltage can range from 2.8 to 30 V in operating
conditions.
P
TSSOP8
(Plastic package)
D
SO-8
(Plastic package)
Vm 1
Gnd 2
A1 3
A2 4
Pin connections
(top view)
8 Vp
7 A3
6 Vcc
5 Out
The TSC102 is rugged against abnormal
conditions on the input pins: Vp and Vm can
withstand up to 60 V in case of voltage spikes, as
little as -16 V in case of reversed battery, and up
to 4 kV in case of electrostatic discharge.
In addition to the current sensing amplifier, the
TSC102 offers a fully accessible amplifier for
output signal conditioning.
The device’s overall current consumption is lower
than 420 µA.
March 2011
Doc ID 16754 Rev 2
1/24
www.st.com
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