TSC103 High-Side Current-Sense Amplifiers

STMicro enhances current sensing for improved control, efficiency, and safety

TSC103 High-Side Current-Sense AmplifiersSTMicroelectronics' TSC103 measures a small differential voltage on a high-side shunt resistor and translates it into a ground–referenced output voltage. The extremely wide input common-mode voltage range (from 2.9 V to 70 V) allows for use in a wide variety of applications. In dual-supply configuration, the TSC103 features a wide -2.1 V to 65 V common-mode voltage range, allowing monitoring of power lines below ground. The gain is adjustable to four different values from 20 V/V up to 100 V/V by two section pins. The TSC103 helps system designers reduce energy consumption with its intrinsically low supply current (ICC) and its good accuracy, which allows it to minimize the shunt resistor’s value.

Features Applications
  • Supply voltage range: 2.7 V to 5.5 V in single supply voltage configuration
  • Low current consumption: ICC max = 360 µA
  • Independent supply and input common-mode voltages
  • Wide common-mode operating range:
    • 2.9 V to 70 V in single-supply configuration
    • -2.1 V to 65 V in dual-supply configuration
  • Pin selectable gain: 20 V/V, 25 V/V, 50 V/V, or 100 V/V
  • Wide common-mode surviving range: -16 V to 75 V (reversed battery and load-dump conditions)
  • Buffered output
  • Available in small SO-8 and TSSOP8 packages
  • Automotive current monitoring
  • DC motor control
  • Notebook computers
  • Photovoltaic systems
  • Battery chargers
  • LED current control
  • High-end power supplies

High Side Current Sense Amplifiers

ImageManufacturer Part NumberDescriptionAvailable Quantity
TSC103IPT product page link
Published: 2013-03-14