TSC1021 - High side current sense amplifier - STMicroelectronics

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Product overview

Description

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.

All 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 T_amb= 25 °C

±2.3 mV for -40 °C < T_amb < 125 °C

Maximum total output voltage error:

±1.5 % for T_amb= 25 °C

±2.5 % for -40 °C < T_amb < 125 °C

Maximum variation over temperature:

dV_os/dT = 8 µV/°C

dV_out/dT = 100 ppm/°C

Low current consumption: I_CCmax = 300 µA

-40 °C to 125 °C operating temperature range

Internally fixed gain: 20 V/V, 50 V/V

EMI filtering
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Low side Current Sensing

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High side Current Sensing

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	Resource title	Version	Latest update

SPICE models (1)

	Resource title	Version	Latest update
MOD	TSC1021 A B macromodel Pspice New Pins Order	2.0	03 Nov 2020	03 Nov 2020 TSC1021 A B macromodel Pspice New Pins Order 2.0

Eldo models (1)

	Resource title	Version	Latest update
MOD	TSC1021 A B macromodel ELDO New Pins Order	2.0	03 Nov 2020	03 Nov 2020 TSC1021 A B macromodel ELDO New Pins Order 2.0

SIMetrix models (1)

	Resource title	Version	Latest update
ZIP	TSC1021 SIMetrix examples schematics	2023.12	11 Mar 2024	11 Mar 2024 TSC1021 SIMetrix examples schematics 2023.12

Quality and Reliability

Part Number	Marketing Status	Package	Grade	RoHS Compliance Grade	Material Declaration**
TSC1021AIPT	Active	TSSOP-8L	Industrial	Ecopack3	PDF XML
TSC1021AIYPT	Active	TSSOP-8L	Automotive	Ecopack3	PDF XML
TSC1021BIPT	Active	TSSOP-8L	Industrial	Ecopack3	PDF XML
TSC1021BIYPT	Active	TSSOP-8L	Automotive	Ecopack3	PDF XML

TSC1021AIPT

Package:

TSSOP-8L

Material Declaration**:

TSC1021AIYPT

Package:

TSSOP-8L

Material Declaration**:

TSC1021BIPT

Package:

TSSOP-8L

Material Declaration**:

TSC1021BIYPT

Package:

TSSOP-8L

Material Declaration**:

(**) 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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