TSC1021:High side current sense amplifier

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.

Key Features

  • Wide common-mode operating range independent of supply: 2.8 V to 30 V
  • Wide common-mode survival range: -32 V 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 °C to 125 °C operating temperature range
  • Internally fixed gain: 20 V/V, 50 V/V
  • EMI filtering
Product Specifications
DescriptionVersionSize
DS6926: High-side current sense amplifier4.0974 KB
Application Notes
DescriptionVersionSize
AN4369: Adjustable gain with a current sensing2.0632 KB
AN4835: High-side current sensing for applications using high common-mode voltage1.0657 KB
User Manuals
DescriptionVersionSize
UM0065: MACROMODELS USER MANUAL FOR STANDARD LINEAR PRODUCTS1.0120 KB
HW Model & CAD Libraries
DescriptionVersionSize
ST library for all op amps and comparators SPICE models2.045 KB
TSC1021 PSpice macromodel1.03 KB
TSC1021 eldo macromodel2.03 KB
Presentations
DescriptionVersionSize
ST offering in Wearable - Analog and Mixed Signal Portfolio3.01 MB
VMA automotive applications1 MB
Flyers
DescriptionVersionSize
TSC10 series: high-side current sense amplifiers1.01 MB
Selection Guides
DescriptionVersionSize
ST Analog cards High-performance operational amplifiers and comparators, the best choice for longevity, robustness and performance.1.0818 KB
Brochures
DescriptionVersionSize
Operational amplifiers: performance, robust and advanced technology2 MB
Products and Solutions for Factory Automation and Control1.03 MB
Sample & Buy
Part NumberPackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)Unit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
TSC1021AIPTTSSOP-8Tape And Reel-401250.651000NECEAR99MOROCCO
TSC1021BIPTTSSOP-8Tape And Reel-401250.651000NECEAR99MOROCCO
TSC1021BIYPTTSSOP-8Tape And Reel-401250.781000NECEAR99MOROCCO
TSC1021AIYPTTSSOP-8Tape And Reel-401250.781000NECEAR99MOROCCO
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
TSC1021AIPTTSSOP-8IndustrialEcopack3
TSC1021BIPTTSSOP-8IndustrialEcopack3md_6p-wspc-tssop-wspc-8-wspc-body-wspc-4.4-wspc-pitch-wspc-0.65_kd6p1021ab6-wspc-(tsc1021bipt)-wspc-rev2_signed.pdf
md_6p-wspc-tssop-wspc-8-wspc-body-wspc-4.4-wspc-pitch-wspc-0.65_kd6p1021ab6-wspc-(tsc1021bipt)-wspc-rev2.xml
TSC1021BIYPTTSSOP-8AutomotiveEcopack3md_6p-wspc-tssop-wspc-8-wspc-body-wspc-4.4-wspc-pitch-wspc-0.65_kd6p-wspc-1021aby.pdf
md_6p-wspc-tssop-wspc-8-wspc-body-wspc-4.xml
TSC1021AIYPTTSSOP-8AutomotiveEcopack3md_6p-wspc-tssop-wspc-8-wspc-body-wspc-4.4-wspc-pitch-wspc-0.65_kd6p-wspc-1022aay.pdf
md_6p-wspc-tssop-wspc-8-wspc-body-wspc-4.xml
High-side current sense amplifier TSC1021
Adjustable gain with a current sensing TSC1021
High-side current sensing for applications using high common-mode voltage TSZ121
MACROMODELS USER MANUAL FOR STANDARD LINEAR PRODUCTS TSV631
Optical heart rate monitoring – OHRM based on X-NUCLEO-IKA01A1 expansion board TSV631
MACROMODELS USER MANUAL FOR STANDARD LINEAR PRODUCTS TSC1021
MACROMODELS USER MANUAL FOR STANDARD LINEAR PRODUCTS TSC1021
Filter-free stereo 2.8 W class D audio power amplifier with selectable 3D sound effects TS4999
Optical heart rate monitoring – OHRM based on X-NUCLEO-IKA01A1 expansion board TSV631
MACROMODELS USER MANUAL FOR STANDARD LINEAR PRODUCTS TSC1021
Optical heart rate monitoring – OHRM based on X-NUCLEO-IKA01A1 expansion board TSV631
Optical heart rate monitoring – OHRM based on X-NUCLEO-IKA01A1 expansion board TSV631
STEVAL-SPIMD20V1 demonstration kit based on the SPIMD20 integrated motor drive STEVAL-SPIMD20V1
md_6p-wspc-tssop-wspc-8-wspc-body-wspc-4.4-wspc-pitch-wspc-0.65_kd6p1021ab6-wspc-(tsc1021bipt)-wspc-rev2_signed.pdf TSC1021
md_6p-wspc-tssop-wspc-8-wspc-body-wspc-4.4-wspc-pitch-wspc-0.65_kd6p1021ab6-wspc-(tsc1021bipt)-wspc-rev2.xml TSC1021
md_6p-wspc-tssop-wspc-8-wspc-body-wspc-4.4-wspc-pitch-wspc-0.65_kd6p-wspc-1021aby.pdf TSC1021
md_6p-wspc-tssop-wspc-8-wspc-body-wspc-4.4-wspc-pitch-wspc-0.65_kd6p-wspc-1022aay.pdf TSC1021
md_6p-wspc-tssop-wspc-8-wspc-body-wspc-4.xml TL082