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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

STMicroelectronics TSC211IYCT

Name: TSC211IYCT
Brand: STMicroelectronics
SKU: TSC211IYCT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TSC211IYCT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 6-TSSOP, SC-88, SOT-363

Datasheet:: TSC211IYCT.pdf

Description:: IC CURR SENSE 1 CIRCUIT SC70-6

Quantity:: RFQ Add To RFQ list

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Inventory:1,777

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Product details

Overview

TSC211IYCT from STMicroelectronics is a zero-drift, high-precision current sense amplifier optimized for bidirectional or unidirectional shunt-based current measurement across -0.3 V to 26 V common-mode voltage range. It delivers 500 V/V fixed gain, ±35 µV max offset voltage (25 °C), ±1% max gain error, and operates from 2.7 V to 26 V supply over -40 °C to 125 °C - enabling accurate sensing in battery chargers and telecom power rails.

For engineers reviewing the TSC211IYCT datasheet, TSC211IYCT pinout, TSC211IYCT application, or TSC211IYCT equivalent, key selection criteria include input offset drift (0.1 µV/°C), CMRR (105–140 dB), quiescent current (100 µA), and QFN10 (1.8 × 1.4 mm) package compatibility with space-constrained industrial and notebook power management layouts.

Technical Context

The TSC211IYCT employs a proprietary zero-drift chopper-stabilized architecture that actively corrects input offset and 1/f noise, achieving ±35 µV max RTI offset at 25 °C and 0.1 µV/°C max drift over -40 °C to 125 °C. Its input stage supports common-mode voltages exceeding the supply rail (up to 26 V while V_CC = 5 V), enabled by internal bias current sourcing from the Vicm node.

Output common-mode level is programmable via the REF pin, allowing flexible unidirectional (GND- or V_CC-referenced) or bidirectional (mid-rail referenced) operation. Gain is fixed at 500 V/V via on-die thin-film resistor network (R1/R2 = 1 MΩ / 2 kΩ), eliminating external gain-setting components and ensuring ±1% max gain error and 20 ppm/°C max gain drift.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain	500 V/V - fixed precision amplification ratio; enables 2 mV shunt drop to produce 1 V output, reducing sensitivity to trace resistance and layout parasitics.
Offset voltage (max)	±35 µV at 25 °C - ensures ≤0.007% full-scale error for 500 mV output swing, critical for sub-amp current resolution in battery fuel gauging.
CMRR	105–140 dB - suppresses interference from high dv/dt power rails (e.g., buck converter switching nodes), preserving accuracy in noisy telecom equipment.
Supply range	2.7 V to 26 V - supports direct connection to 3.3 V, 5 V, 12 V, and 24 V systems without LDO, simplifying power architecture in industrial PLCs.
Quiescent current	100 µA - enables always-on current monitoring in low-power IoT edge nodes with multi-year battery life.
Operating temperature	-40 °C to 125 °C - qualified for under-hood automotive modules and industrial motor drives where ambient thermal stress exceeds consumer-grade limits.
Bandwidth	8 kHz - sufficient for DC–10 kHz current loop feedback in switched-mode power supplies and motor phase current sensing.

Pinout & Package

Package: QFN10 (1.8 mm × 1.4 mm, 0.5 mm pitch, exposed thermal pad). Compact footprint supports high-density PCB layouts in notebook computers and telecom line cards.

Pin/Terminal	Circuit Role	Design Meaning
1 (OUT)	Amplified output voltage	Delivers gain × (V_IN+ − V_IN−) + V_REF; rail-to-rail swing (V_CC − 0.05 V / 30 mV above GND) enables direct ADC interfacing.
2, 3 (VIN+)	Non-inverting input	Connects to high-side or low-side shunt terminal; accepts common-mode voltage up to 26 V independent of V_CC.
4, 5 (VIN−)	Inverting input	Connects to opposite shunt terminal; differential input pair rejects common-mode noise and enables bidirectional sensing.
6 (VCC)	Positive supply	Power rail (2.7–26 V); also powers internal bias circuits when Vicm > 2.5 V via current drawn from input common-mode node.
7 (NC)	No connect	Internally unused; must be left floating, tied to GND, or tied to V_CC per datasheet guidance - no electrical function.
8 (REF)	Reference voltage input	Sets output common-mode level; determines unidirectional (GND/V_CC) or bidirectional (mid-rail) operation mode.
9 (GND)	Analog ground	Return path for internal circuitry; requires low-impedance connection to system ground plane to maintain CMRR and noise immunity.
10 (NC)	No connect	Internally unused; same handling as Pin 7 - no routing or termination required.

Key Features

Feature	Design Value
Zero-drift architecture	Eliminates 1/f noise and thermal drift; guarantees ±35 µV max offset and 0.1 µV/°C max drift - essential for stable long-term current monitoring in solar inverters.
Extended common-mode range	-0.3 V to +26 V input range enables direct high-side sensing on 24 V bus without level-shifting, reducing BOM count in industrial power supplies.
Programmable output common-mode	V_REF-pin control allows GND-, V_CC-, or mid-rail-referenced output - supports single-supply ADCs and bidirectional battery charge/discharge monitoring.
Low quiescent current	100 µA consumption at 2.7 V enables integration into always-on subsystems (e.g., smart battery packs) without compromising runtime.
High PSRR & CMRR	≥105 dB CMRR and ≥100 dB PSRR reject coupling from adjacent switching regulators and supply ripple - critical for precision in multi-rail telecom boards.

Applications

Telecom Power Monitoring

Battery Charger Feedback

Use Scenario: Real-time current monitoring on +48 V DC distribution rails in 5G base station power shelves.

IC Role / Device Role / Timing Role: High-side current sense amplifier measuring load current through 1 mΩ shunt; outputs scaled voltage to isolated ADC for digital power management.

Use Value: 500 V/V gain resolves 2 mA steps at 100 A full scale; ±35 µV offset ensures <0.01% error at light load, improving efficiency reporting accuracy.

Use Scenario: Bidirectional current sensing in USB PD 3.0 fast-charging adapter for Li-ion battery pack.

IC Role / Device Role / Timing Role: Unidirectional (GND-referenced) current monitor during charge phase; switches to mid-rail reference for discharge current detection in portable devices.

Use Value: Programmable V_REF enables seamless transition between charge/discharge modes; 125 °C rating supports compact thermally constrained enclosure designs.

Notebook CPU VRM Current Sensing

Industrial PLC Analog Input Module

Use Scenario: Phase current measurement in multiphase CPU voltage regulator modules (VRMs) for dynamic thermal throttling.

IC Role / Device Role / Timing Role: Low-side shunt amplifier feeding analog current signal to microcontroller's integrated ADC for real-time current limiting and phase balancing.

Use Value: 8 kHz bandwidth captures transient load steps; 100 µA quiescent current minimizes impact on VRM standby power budget.

Use Scenario: Precision current loop transmitter (4–20 mA) calibration and diagnostics in modular industrial I/O systems.

IC Role / Device Role / Timing Role: Reference-grade current sense element verifying field transmitter output accuracy against known shunt value and excitation voltage.

Use Value: ±1% gain error and 20 ppm/°C drift ensure calibration stability over factory temperature cycling; QFN10 footprint fits dense DIN-rail module layouts.

Equivalent & Alternatives

The following parts are listed as comparable options for similar current sense amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
INA240A1IDR	500 V/V gain, ±10 µV offset (typ), 105 dB CMRR, SOIC-8 package	Higher precision offset but larger SOIC-8 footprint; lacks extended -0.3 V common-mode capability	Prefer for lab-grade test equipment where offset dominates error budget; avoid in high-density 24 V high-side sensing due to package size and Vicm limit.
MAX40056ATA+T	500 V/V gain, ±50 µV offset (max), 120 dB CMRR, 8-pin WLP (1.6 × 1.6 mm)	Smaller WLP package but higher max offset; no REF pin - output fixed at V_CC/2	Prefer for ultra-compact wearable power monitors; avoid where programmable output common-mode or sub-35 µV offset is required.

Compared with INA240A1IDR and MAX40056ATA+T, the TSC211IYCT uniquely combines -0.3 V to 26 V common-mode range, REF-pin programmability, and QFN10 size - making it optimal for space-constrained, wide-input industrial and telecom current sensing where flexibility and rail-to-rail Vicm support are non-negotiable.

Availability

TSC211IYCT is available at Aetrix Electronics and suitable for telecom equipment, battery chargers, and industrial PLCs requiring stable component supply with guaranteed long-term availability and consistent parametric performance across production lots.

Supply support for TSC211IYCT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, power, MCU, and sensor solutions for industrial, automotive, and consumer markets.

The TSC211IYCT belongs to ST's precision current sense amplifier product line, engineered specifically for high-accuracy, wide common-mode, zero-drift current measurement in demanding power management and energy monitoring applications.

FAQ

What is the maximum common-mode voltage the TSC211IYCT can handle?

The TSC211IYCT supports a continuous common-mode input voltage range of -0.3 V to +26 V, independent of supply voltage - enabling direct high-side sensing on 24 V industrial buses and negative-rail monitoring in telecom systems without external level shifters or resistive dividers.

How does the REF pin affect output behavior?

The REF pin sets the output common-mode voltage: grounding it yields GND-referenced unidirectional output; connecting it to V_CC yields V_CC-referenced output; applying mid-rail voltage enables true bidirectional current sensing. This eliminates need for external op-amps or level-shifting networks in mixed-signal systems.

Can the TSC211IYCT operate with a 3.3 V supply?

Yes - the TSC211IYCT is fully specified from 2.7 V to 26 V supply. At 3.3 V, it maintains 500 V/V gain, ±35 µV max offset, and 105 dB min CMRR across -40 °C to 125 °C, making it suitable for low-voltage IoT edge nodes and portable medical devices requiring precision current telemetry.

Is the QFN10 package lead-free and RoHS-compliant?

Yes - the TSC211IYCT in QFN10 package (part number suffix "IYCT") is manufactured using lead-free solderable terminations and complies with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, with full material declarations available via ST's official product page.

TSC211IYCT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 6-TSSOP, SC-88, SOT-363

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: Current Sense

Number of Circuits:: 1

Output Type:: Push-Pull

Slew Rate:: 0.075V/µs

Gain Bandwidth Product:: 8 kHz

-3db Bandwidth:: -

Current - Input Bias:: 28 µA

Voltage - Input Offset:: 35 µV

Current - Supply:: 65µA

Current - Output / Channel:: -

Voltage - Supply Span (Min):: 2.7 V

Voltage - Supply Span (Max):: 26 V

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SC-70-6

TSC211IYCT FAQ

1.How can I place an order for TSC211IYCT through Aetrix?

Please submit a Request for Quotation (RFQ) for TSC211IYCT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TSC211IYCT reliable?

The price and inventory of TSC211IYCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSC211IYCT is usually 5 days.

3.What payment methods are accepted for TSC211IYCT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSC211IYCT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TSC211IYCT?

TSC211IYCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TSC211IYCT order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TSC211IYCT?

For technical support, including TSC211IYCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSC211IYCT requirements.

6.How does Aetrix verify that TSC211IYCT is sourced from the original manufacturer or authorized distributors?

All TSC211IYCT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TSC211IYCT meets industry standards.

7.What is the process for return or replacement of TSC211IYCT?

All TSC211IYCT units undergo pre-shipment inspection (PSI). If there is an issue with TSC211IYCT, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TSC211IYCT part is unused and in its original packaging.

Return procedure for TSC211IYCT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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