TSC103 High-Side Current-Sense Amplifiers


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


STMicroelectronics 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 2.9V to 70V) allows for use in a wide variety of applications. In dual-supply configuration, the TSC103 features a wide -2.1V to 65V 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.   TSC103 Datasheet

  Features   Applications
  • Supply voltage range: 2.7V to 5.5V in single supply
    voltage configuration
  • Low current consumption: ICC max = 360µA
  • Independent supply and input common-mode voltages
  • Wide common-mode operating range:
    • 2.9V to 70V in single-supply configuration
    • -2.1V to 65V 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: -16V to 75V
    (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
  • RoHS Compliant

STMicroelectronics
Part Number
Digi-Key
Part Number
Supply Voltage – Single / Dual Package  
TSC103IPT 497-10454-1-ND 2.7V ~ 5.5V / ±1.35V ~ 2.75V 8-TSSOP TSC103IDT Datasheet