Products

STMicroelectronics introduced its new standard products range of current-sensing amplifiers with the release of the TSC101 high-side current-sense amplifier.
 

The TSC101 measures very small differences in voltage across a high-side shunt resistor, and using an internally fixed gain, amplifies the difference into a ground-referenced output voltage. There are three choices of internally fixed gains available (20 V/V, 50 V/V or 100 V/V) depending on the sensitivity required in the application.

The devices use independent input common-mode and power supply voltages. Common-mode voltage can range from 2.8...30 V in operating conditions, and up to 60 V in absolute maximum ratings.

Quiescent current consumption is very low (< 300 µA), ensuring that the device can operate in battery operated applications with minimal power consumption. A wide supply voltage range (4...24 V) allows the device to connect the power supply to either side of the current measurement shunt with minimal error for most applications.

This current-sense amplifier, available in the compact SOT23-5L package can be used in a wide variety of applications, ranging from battery chargers to automotive current monitoring.

• Independent supply and input common-mode voltages
• Wide common-mode operating range: 2.8...30 V
• Wide common-mode survival range: 0.3...60 V
• Wide supply voltage range: 4...24 V
• Low current consumption: Icc max = 300 µA
• Internally fixed gain: 20 V/V, 50 V/V or 100 V/V
• Buffered output

Applications

• Battery chargers

• Notebook computers

• DC motor control

• Photovoltaic systems

• Automotive current monitoring

• Uninterruptible power supplies

• High-end power supplies