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TSC1021

High side current sense amplifier
  • active Active

The TSC1021 measures a small differential voltage on a high-side shunt resistor and translates it into a ground-referenced output voltage.

The TSC1021 has been specifically designed for automotive conditions: load-dump protection up to 60 V, reverse-battery protection up to -32 V, ESD protection up to 4 kV and internal filtering for EMI performance.

Input common-mode and power supply voltages are independent: the common-mode voltage can range from 2.8 to 30 V in operating conditions and up to 60 V in absolute maximum ratings while the TSC1021 can be supplied by a 5 V independent supply line.

The TSC1021 is housed in a tiny TSSOP8 package and integrates a buffer that provides low impedance output to ease interfacing and avoid accuracy losses. The overall device current consumption is lower than 300 μA.

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Errata Sheet
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Datasheet

Key Features

  • Wide common-mode operating range independent of supply: 2.8 to 30 V
  • Wide common-mode survival range: -32 to 60 V (reversed battery and load-dump conditions)
  • Maximum input offset voltage:
  • ±1.5 mV for Tamb = 25°C
  • ±2.3 mV for -40°C < Tamb< 125°C
  • Maximum total output voltage error:
  • ±1.5% for Tamb = 25°C
  • ±2.5% for -40°C < Tamb< 125°C
  • Maximum variation over temperature:
  • dVos/dT = 8 μV/°C
  • dVout/dT = 100 ppm/°C
  • Low current consumption: ICC max = 300 μA
  • -40 to 125°C operating temperature range
  • Internally fixed gain: 20 V/V, 50 V/V
  • EMI filtering

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS6926: High-side current sense amplifier
2.0 649 KB

Application Notes

Description Version Size
pdf
AN4369: Adjustable gain with a current sensing
1.0 654 KB

HW Model & CAD Libraries

HW Model & CAD Libraries

Description Version Size
zip
TSC1021 PSpice macromodel
1.0.0 3 KB
zip
TSC1021 eldo macromodel
1.0.0 3 KB

Presentations & Training Material

Presentations

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

Publications and Collaterals

Brochure

Description Version Size
pdf
Analog ICs for wearable devices
981 KB

Sample & Buy

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Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Automotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
TSC1021AIPTActiveTSSOP-8Tape And Reel-40125_-.65Distributor reported inventory date: 2014-09-16
Distributor NameRegionStockMin. order
P&SOrder NowASIA/PACIFIC27931
Ecopack1-
TSC1021AIYPTActiveTSSOP-8Tape And Reel-40125Yes-.78Distributor reported inventory date: 2014-09-17
Distributor NameRegionStockMin. order
DIGIKEYOrder NowWORLDWIDE33551
Ecopack1 (*)PDF
XML
TSC1021BIPTActiveTSSOP-8Tape And Reel-40125_-.65Distributor reported inventory date: 2014-09-17
Distributor NameRegionStockMin. order
MOUSEROrder NowWORLDWIDE61
Ecopack1 (*)-
TSC1021BIYPTActiveTSSOP-8Tape And Reel-40125Yes-.78Distributor reported inventory date: 2014-09-17
Distributor NameRegionStockMin. order
DIGIKEYOrder NowWORLDWIDE39001
Ecopack1 (*)PDF
XML

(*) 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 st.com 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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