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High-voltage high side current sense amplifier
  • active Active

The TSC1031 measures a small differential voltage on a high-side shunt resistor and translates it into a ground-referenced output voltage. The TSC1031’s dedicated schematic eases the implementation of EMI filtering in harsh environments. The gain is adjustable to 50 V/V or 100 V/V by a selection pin.

Wide input common-mode voltage range, low quiescent current, and tiny TSSOP8 packaging enable use in a wide variety of applications.

The input common-mode and power supply voltages are independent. The common-mode voltage can range from 2.9 to 70 V in the single-supply configuration or be offset by an adjustable voltage supplied on the Vcc- pin in the dual-supply configuration. With a current consumption lower than 360 μA and a virtually null input leakage current in standby mode, the power consumption in the applications is minimized.

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Errata Sheet
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Key Features

  • Independent supply and input common-mode voltages
  • Wide common-mode operating range: 2.9 to 70 V in single-supply configuration -2.1 to 65 V in dual-supply configuration
  • Wide common-mode surviving range: -16 to 75 V (reversed battery and load-dump conditions)
  • Supply voltage range: 2.7 to 5.5 V in single supply configuration
  • Low current consumption: ICCmax = 360 μA
  • Pin selectable gain: 50 V/V or 100 V/V
  • Buffered output
  • EMI filtering

Circuit Diagram

Design Resources


Technical Documentation

Product Specifications

Description Version Size
DS6632: High-voltage, high-side current sense amplifier
3.0 722 KB

Application Notes

Description Version Size
AN4366: Compensate the input offset of a high-side current sensing
1.0 280 KB
AN4369: Adjustable gain with a current sensing
1.0 654 KB

HW Model & CAD Libraries

HW Model & CAD Libraries

Description Version Size
Eldo macromodel - High-voltage, high-side current sense amplifier
3 KB
Macromodels user manual for TSC1031
1.0 1,261 KB
Spice macromodel - High-voltage, high-side current sense amplifier
4 KB

Presentations & Training Material


Description Version Size
ST offering in Wearable - Analog and Mixed Signal Portfolio
1,508 KB

Publications and Collaterals


Description Version Size
Analog ICs for wearable devices
981 KB

Sample & Buy

Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Automotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
TSC1031IDTActiveSO-8Tape And Reel-40125_Free Samples.94Distributor reported inventory date: 2014-10-21
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA25002500
Ecopack1 (*)-
TSC1031IPTActiveTSSOP-8Tape And Reel-40125_-.94No availability reported, please contact our Sales officeEcopack1 (*)-
TSC1031IYDTActiveSO-8Tape And Reel-40125YesFree Samples1.13Distributor reported inventory date: 2014-10-21
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA4702500
Ecopack1 (*)-
TSC1031IYPTActiveTSSOP-8Tape And Reel-40125Yes-1.13Distributor reported inventory date: 2014-10-21
Distributor NameRegionStockMin. order
Farnell Element14Order NowEUROPE21631
Ecopack1 (*)-

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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