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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.

pdf Please read
Errata Sheet
pdf Download
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
  • Related products
  • See TSC103 for higher common-mode operating range (2.9 V to 70 V)

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS6926: High-side current sense amplifier
3.0 799 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
3.0 1,508 KB
pdf
VMA automotive applications
1,366 KB

Publications and Collaterals

Flyer

Description Version Size
pdf
TSC10 series: high-side current sense amplifiers
1.0 1,274 KB

Brochure

Description Version Size
pdf
Analog ICs for wearable devices
2.0 981 KB
pdf
Products and Solutions for Factory Automation and Control
Jan 2015 3,105 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: 2015-07-02
Distributor NameRegionStockMin. order
P&SOrder NowASIA/PACIFIC26491
Ecopack2-
TSC1021AIYPTActiveTSSOP-8Tape And Reel-40125YesFree Samples.78Distributor reported inventory date: 2015-07-02
Distributor NameRegionStockMin. order
Farnell Element14Order NowEUROPE39961
RS COMPONENTSOrder NowEUROPE383010
DIGIKEYOrder NowWORLDWIDE39951
Ecopack2PDF
XML
TSC1021BIPTActiveTSSOP-8Tape And Reel-40125_-.65Distributor reported inventory date: 2015-07-02
Distributor NameRegionStockMin. order
RUTRONIKOrder NowEUROPE34000
FUTUREOrder NowWORLDWIDE40004000
Ecopack2-
TSC1021BIYPTActiveTSSOP-8Tape And Reel-40125YesFree Samples.78Distributor reported inventory date: 2015-07-02
Distributor NameRegionStockMin. order
Farnell Element14Order NowEUROPE39981
RS COMPONENTSOrder NowEUROPE39505
DIGIKEYOrder NowWORLDWIDE31241
Ecopack2PDF
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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