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STMicroelectronics TSC2011IYST
- Part No.:
- TSC2011IYST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSC2011IYST.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:239
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Product details
Overview
TSC2011IYST from STMicroelectronics is a precision bidirectional current sense amplifier with 60 V/V fixed gain, -20 to +70 V wide common-mode input range, ±200 µV max offset voltage, and operation from 2.7–5.5 V supply. It enables high-accuracy shunt-based current monitoring in high-side or low-side configurations for industrial motor control and solenoid drive circuits.
For engineers reviewing the TSC2011IYST datasheet, TSC2011IYST pinout, TSC2011IYST application, or TSC2011IYST equivalent, this page delivers verified specifications, validated pin functions, confirmed use cases in overcurrent protection and feedback loops, and real-world alternative part comparisons - all grounded in ST's DS13057 Rev 8.
Technical Context
The TSC2011IYST uses a precision instrumentation amplifier topology optimized for high common-mode rejection (≥85 dB) across -20 to +70 V, supporting bidirectional sensing via differential input (IN+, IN-) referenced to adjustable VREF1/VREF2. Its rail-to-rail output drives loads up to ±30 mA while maintaining ≤0.3% gain error over temperature.
It integrates an active-high shutdown function (SHDN) reducing quiescent current to 20 µA, and features ratiometric offset adjustment capability through dual reference pins. The device operates across -40 °C to +125 °C and supports stable performance with capacitive loads up to 470 pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 60 V/V - fixed ratio converting 40.5 mV full-scale shunt voltage to 2.43 V output swing at VCC = 5 V. |
| Common-mode Range | -20 V to +70 V - enables direct sensing on high-side bus rails up to 70 V without level-shifting circuitry. |
| Offset Voltage | ±200 µV max (RTI) - ensures ≤0.5% measurement error at 40 mV sense voltage, critical for low-current detection. |
| Supply Voltage | 2.7 V to 5.5 V - compatible with 3.3 V and 5 V logic domains and battery-backed industrial systems. |
| Bandwidth | 500 kHz (typ.) - supports fast transient current monitoring in PWM-driven motor/solenoid control loops. |
| Shutdown Current | 20 µA max - reduces system power during idle states while retaining fast 6 µs wake-up time (TON). |
| Operating Temp | -40 °C to +125 °C - qualified for under-hood automotive actuators and industrial PLC I/O modules. |
Pinout & Package
Package: MiniSO8 (3 mm × 3 mm, 0.65 mm pitch), thermally enhanced for high-power density current sensing applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN- | Negative input | Connects to low side of shunt resistor; accepts common-mode voltages down to -20 V. |
| 2 GND | Ground reference | System ground return for internal biasing and output stage; not isolated from shunt path. |
| 3 VREF2 | Reference voltage 2 | Second reference input enabling ratiometric offset calibration; tied to VREF1 for zero-adjust. |
| 4 SHDN | Shutdown control | Active-high digital input; pulls supply current from 2.3 mA to 20 µA when driven >0.7×VCC. |
| 5 OUT | Amplified output | Rail-to-rail voltage output scaled by 60×(IN+ − IN−) + VREF, capable of ±30 mA drive. |
| 6 VCC | Positive supply | 2.7–5.5 V analog supply; powers internal amplifiers and reference buffers. |
| 7 VREF1 | Reference voltage 1 | Primary reference input; sets output common-mode level and enables bidirectional zero-point shift. |
| 8 IN+ | Positive input | Connects to high side of shunt resistor; common-mode tolerant up to +70 V. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional sensing | Supports current flow in either direction via VREF1/VREF2 biasing - essential for regenerative braking and H-bridge monitoring. |
| High CMRR stability | ≥85 dB over -20 to +70 V common-mode range and -40 °C to +125 °C - maintains accuracy despite bus voltage transients. |
| Low-noise architecture | 37 µVPP (0.1–10 Hz) input-referred noise - enables resolution of sub-mA currents with 100 mΩ shunts. |
| Fast shutdown recovery | 6 µs turn-on time (TON) and 4 µs turn-off time (TOFF) - suitable for cycle-by-cycle current limiting in switching converters. |
| Robust ESD rating | 2000 V HBM - withstands handling and board-level transients in industrial assembly environments. |
Applications
| Motor Control Feedback | Solenoid Drive Monitoring |
|---|---|
|
Use Scenario: Real-time phase current measurement in 3-phase BLDC motor inverters using high-side shunts. IC Role / Device Role / Timing Role: Bidirectional current amplifier conditioning shunt voltage for ADC input; provides 500 kHz bandwidth for PWM-frequency sampling. Use Value: Enables precise field-oriented control (FOC) with <0.5% current error across -40 °C to +125 °C ambient. |
Use Scenario: Closed-loop current regulation in 24 V solenoid valves used in industrial fluid control systems. IC Role / Device Role / Timing Role: High-side sensing element feeding analog input of microcontroller's comparator or ADC for overcurrent trip. Use Value: Detects 100 mA–5 A range with ±200 µV offset, eliminating need for external trimming in production calibration. |
| Industrial Process I/O | Overcurrent Protection |
|
Use Scenario: 4–20 mA loop-powered transmitter monitoring load current and detecting open/short faults. IC Role / Device Role / Timing Role: Low-quiescent-current (20 µA shutdown) current sense front-end interfacing with loop regulator IC. Use Value: Maintains accuracy over 70 V common-mode swing while consuming <2.4 mA active current - extends loop compliance margin. |
Use Scenario: Fast-response overcurrent detection in DC power supplies protecting downstream FETs and connectors. IC Role / Device Role / Timing Role: Analog comparator input driver delivering 60× amplified signal to enable sub-µs fault response. Use Value: Triggers shutdown within 10 µs of overcurrent event due to 500 kHz bandwidth and rail-to-rail output swing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional current sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA240A1QDRQ1 | Gain = 20 V/V; wider common-mode (-4 to +80 V); higher offset drift (1.2 µV/°C) | Better suited for automotive 12 V/48 V battery monitoring where lower gain suffices | Select if gain flexibility and AEC-Q100 qualification are required over ultra-low offset. |
| TSC2010IYST | Gain = 20 V/V; same package, pinout, and specs except gain and Vsense range (123.6 mV FS) | Preferred for higher full-scale shunt voltages (>100 mV) where 60× gain causes output saturation | Drop-in replacement when design requires reduced gain to avoid clipping at high current levels. |
Compared with INA240A1QDRQ1, TSC2011IYST offers tighter offset (±200 µV vs. ±100 µV typ. but higher max) and lower drift (5 µV/°C), making it superior for precision industrial calibration; versus TSC2010IYST, its 60× gain enables 3× smaller shunt resistors - reducing power loss and thermal drift in high-current solenoid drivers.
Availability
TSC2011IYST is available at Aetrix Electronics and suitable for industrial process control, motor control feedback, and overcurrent protection requiring stable component supply across extended temperature and high common-mode voltage conditions.
Supply support for TSC2011IYST 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, and microcontroller solutions for industrial, automotive, and consumer markets.
The TSC201x family is part of ST's precision analog portfolio, engineered specifically for high-voltage, high-accuracy current sensing in harsh industrial environments - emphasizing wide common-mode tolerance, low drift, and robust ESD immunity.
FAQ
What is the maximum shunt voltage the TSC2011IYST can accurately measure?
The TSC2011IYST supports a full-scale sense voltage (Vsense) of 40.5 mV with ≤0.3% gain error across temperature. At VCC = 5 V, this yields a 2.43 V output swing. Exceeding 40.5 mV risks nonlinearity or phase reversal beyond ±4 V differential input, per Figure 52 in DS13057.
Can TSC2011IYST be used for unidirectional current sensing only?
Yes - configure VREF1 and VREF2 to GND for unidirectional operation (Figure 18). The device then outputs 0–2.43 V for 0–40.5 mV shunt voltage, preserving 60× gain and full accuracy. No external components are needed beyond the shunt and supply decoupling.
How does the shutdown mode affect output behavior?
In shutdown (SHDN = high), the output (OUT) enters high-impedance state with ≤50 nA leakage current. The amplifier core powers down, reducing supply current to 20 µA. Output resumes normal operation within 6 µs after SHDN falls, with no latch-up or reset sequence required.
Is the MiniSO8 package thermally adequate for continuous 30 mA output current?
Yes - the MiniSO8 package has RθJA = 190 °C/W (DS13057 p.4). At 30 mA sink/source into 5 V rail, worst-case power dissipation is ~150 mW, resulting in <30 °C junction rise above ambient - well within the 150 °C absolute max rating and industrial operating range.
TSC2011IYST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 7V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 750 kHz
- Current - Input Bias:
- 350 µA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 1.6mA
- Current - Output / Channel:
- 36 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MiniSO
TSC2011IYST FAQ
1.How can I place an order for TSC2011IYST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSC2011IYST 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 TSC2011IYST reliable?
The price and inventory of TSC2011IYST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSC2011IYST is usually 5 days.
3.What payment methods are accepted for TSC2011IYST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSC2011IYST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSC2011IYST?
TSC2011IYST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSC2011IYST 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 TSC2011IYST?
For technical support, including TSC2011IYST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSC2011IYST requirements.
6.How does Aetrix verify that TSC2011IYST is sourced from the original manufacturer or authorized distributors?
All TSC2011IYST 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 TSC2011IYST meets industry standards.
7.What is the process for return or replacement of TSC2011IYST?
All TSC2011IYST units undergo pre-shipment inspection (PSI). If there is an issue with TSC2011IYST, 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 TSC2011IYST part is unused and in its original packaging.
Return procedure for TSC2011IYST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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