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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.
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
Resources
Technical Documentation
| Description | Version | Size | |
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DS6632: High-voltage, high-side current sense amplifier | 3.0 | 722 KB |
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AN4369: Adjustable gain with a current sensing | 2.0 | 632 KB |
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AN4366: Compensate the input offset of a high-side current sensing | 1.0 | 280 KB |
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AN4835: High-side current sensing for applications using high common-mode voltage | 1.0 | 657 KB |
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AN4909: Intelligent power switches for 48 V battery applications | 1.0 | 1 MB |
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UM0065: MACROMODELS USER MANUAL FOR STANDARD LINEAR PRODUCTS | 1.0 | 120 KB |
HW Model, CAD Libraries & SVD
| Description | Version | Size | |
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Eldo macromodel - High-voltage, high-side current sense amplifier | 1.0 | 3 KB |
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Macromodels user manual for TSC1031 | 1.0 | 1 MB |
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ST library for all op amps and comparators SPICE models | 4.0 | 51 KB |
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Spice macromodel - High-voltage, high-side current sense amplifier | 1.0 | 3 KB |
Presentations & Training Material
| Description | Version | Size | |
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ST Analog Products for Automotive applications | 11.2017 | 2 MB |
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ST offering in Wearable - Analog and Mixed Signal Portfolio | 3.0 | 1 MB |
Publications and Collaterals
| Description | Version | Size | |
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TSC10 series: high-side current sense amplifiers | 1.0 | 1 MB |
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ST Analog cards High-performance operational amplifiers and comparators, the best choice for longevity, robustness and performance. | 1.0 | 818 KB |
| Description | Version | Size | |
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Operational amplifiers: performance, robust and advanced technology | 2 MB | |
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Products and solutions for Smart industry | 3.0 | 3 MB |
Quality & Reliability
| Part Number | RoHS Compliance Grade | Material Declaration** |
|---|---|---|
| TSC1031IYPT | Ecopack3 |
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| TSC1031IPT | Ecopack3 | |
| TSC1031IYDT | Not compliant | |
| TSC1031IDT | Ecopack3 |
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(**) 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.