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STMicroelectronics TSC2010IYST
- Part No.:
- TSC2010IYST
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TSC2010IYST.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT 8MINISO
- Quantity:
- Payment:
- Shipping:
Inventory:3,080
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Product details
Overview
TSC2010IYST from STMicroelectronics is a precision bidirectional current sense amplifier with 20 V/V fixed gain, operating over -20 to +70 V common-mode voltage range and 2.7–5.5 V supply. It delivers ±200 µV max offset voltage, 0.3% max gain error, and supports high-side/low-side sensing in industrial motor control and solenoid drivers.
For engineers reviewing the TSC2010IYST datasheet, TSC2010IYST pinout, TSC2010IYST application, or TSC2010IYST equivalent, this page provides verified specifications, SO8 package layout, real-world use cases in current monitoring and overcurrent protection, and validated alternative parts for design flexibility.
Technical Context
The TSC2010IYST uses a precision instrumentation amplifier topology optimized for wide common-mode rejection (90–120 dB) and rail-to-rail output swing. Its input stage handles differential voltages up to ±7 V while maintaining accuracy across -40 °C to +125 °C.
It integrates dual reference inputs (VREF1/VREF2) enabling ratiometric output scaling and zero-point adjustment. The shutdown function (active-high SHDN) reduces quiescent current to 20 µA, supporting low-power system states without signal path interruption.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 20 V/V - fixed ratio converting shunt voltage to amplified output; enables direct interface with 12-bit ADCs at 10 mV full-scale input. |
| Common-mode voltage range | -20 V to +70 V - supports sensing in high-side configurations above supply rail and negative-rail systems like automotive battery monitoring. |
| Offset voltage (max) | ±200 µV - ensures ≤0.2% measurement error at 100 mV sense voltage, critical for sub-amp current resolution. |
| Supply voltage | 2.7–5.5 V - compatible with single-supply microcontrollers and industrial 3.3 V/5 V logic domains without level-shifting. |
| Bandwidth (-3 dB) | 600 kHz (typ.) - sufficient for PWM-based motor current sampling at 20 kHz switching frequencies with <1° phase lag. |
| Quiescent current | 2.3 mA (active), 20 µA (shutdown) - enables energy-efficient operation in battery-backed or always-on monitoring nodes. |
| Operating temperature | -40 °C to +125 °C - qualified for under-hood automotive, industrial PLC, and factory automation environments. |
Pinout & Package
Package: SO8 (Small Outline Integrated Circuit, 8-pin, 1.27 mm pitch, body size 4.9 × 3.9 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN- | Negative input | Connects to low side of shunt resistor; referenced to common-mode voltage, not ground. |
| 2 GND | Ground reference | Power and signal return; must be tied to PCB ground plane with low-inductance path. |
| 3 VREF2 | Reference voltage 2 | Second reference input for offset calibration; used with VREF1 to set output zero point. |
| 4 SHDN | Shutdown control | Active-high digital input; pulls output to high-impedance state when low, reducing supply current to 20 µA. |
| 5 OUT | Amplified output | Rail-to-rail voltage output proportional to (IN+ − IN−) × 20; drives ADC or comparator directly. |
| 6 VCC | Positive supply | 2.7–5.5 V power input; bypass with 100 nF ceramic capacitor near pin for noise immunity. |
| 7 VREF1 | Reference voltage 1 | Primary reference input; paired with VREF2 to configure bidirectional output centering (e.g., VCC/2). |
| 8 IN+ | Positive input | Connects to high side of shunt resistor; common-mode voltage tolerance allows placement in high-side topologies. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional sensing | Supports current flow in both directions via VREF1/VREF2 biasing-enables regenerative braking monitoring in motor drives. |
| High CMRR | 90–120 dB DC rejection minimizes error from bus voltage transients in noisy industrial power rails. |
| Low offset drift | 5 µV/°C max ensures stable calibration over temperature-reduces need for periodic software compensation in embedded firmware. |
| Wide supply range | 2.7–5.5 V operation eliminates external LDOs in mixed-voltage systems using 3.3 V MCUs and 5 V analog peripherals. |
| Fast turn-on/off | 8 µs turn-on and 5 µs turn-off times allow dynamic power gating synchronized with PWM cycles in real-time control loops. |
Applications
| Motor Phase Current Monitoring | Solenoid Driver Feedback |
|---|---|
|
Use Scenario: Real-time current sampling of three-phase BLDC motor windings during commutation. IC Role / Device Role / Timing Role: High-side current amplifier feeding ADC input of STM32G4 MCU at 100 kSPS. Use Value: Enables field-oriented control (FOC) with <1% current measurement error across -40 °C to 105 °C ambient. |
Use Scenario: Closed-loop current regulation in 24 V industrial solenoid valve driver. IC Role / Device Role / Timing Role: Low-latency sense element in analog feedback path of discrete MOSFET H-bridge. Use Value: Maintains ±2% current accuracy during 10 ms on/off transitions, preventing mechanical chatter and coil overheating. |
| Industrial Process Current Loop | Overcurrent Protection in Power Supplies |
|
Use Scenario: 4–20 mA loop transmitter measuring load current in programmable logic controller (PLC) I/O module. IC Role / Device Role / Timing Role: Precision front-end amplifier conditioning shunt voltage before DAC-driven current output stage. Use Value: Delivers 0.1% linearity over full temperature range, meeting IEC 61000-4-5 surge immunity requirements. |
Use Scenario: Fast-trip overcurrent detection in 48 V telecom rectifier with <10 µs response. IC Role / Device Role / Timing Role: Primary current sense element feeding comparator with hysteresis for latch-off protection. Use Value: Detects >150 A fault within 3 µs using 0.5 mΩ shunt, limiting energy let-through to <10 mJ. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional current sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA240A1IDR | 20 V/V gain, 80 V common-mode, 50 µV offset (typ.), SOIC-8 package | Higher CMV rating suits 48 V server PSUs; lower offset improves sub-amp resolution but lacks dual-reference inputs | Select for ultra-low-offset needs where VREF1/VREF2 calibration is unnecessary and CMV > 70 V required |
| TSC2011IYST | 60 V/V gain, identical package/pinout, same temp range and CMV, ±200 µV offset | Higher gain enables use with smaller shunts (e.g., 0.25 mΩ vs. 0.5 mΩ), increasing power efficiency in high-current designs | Drop-in replacement when higher sensitivity is needed without changing PCB layout or reference network |
Compared with INA240A1IDR, TSC2010IYST offers integrated dual-reference calibration for bidirectional zero-centering but trades 10 V CMV headroom; versus TSC2011IYST, it provides lower gain for improved dynamic range in medium-current applications (5–50 A).
Availability
TSC2010IYST is available at Aetrix Electronics and suitable for motor control, solenoid actuation, and industrial process current monitoring requiring stable component supply across extended temperature and voltage ranges.
Supply support for TSC2010IYST 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, specializing in analog, power, and microcontroller solutions for industrial, automotive, and consumer markets.
The TSC201x family targets high-accuracy current sensing in harsh environments, emphasizing wide common-mode operation, low drift, and robust ESD performance for factory automation and energy infrastructure.
FAQ
What is the maximum shunt resistor value supported for 10 A full-scale sensing?
At 10 A full-scale and 20 V/V gain, the maximum allowable shunt voltage is 100 mV (per datasheet Vsense operating range). Using Ohm's Law, Rshunt = 100 mV / 10 A = 10 mΩ. A 10 mΩ, 1% tolerance, 1 W metal-strip shunt meets thermal and accuracy requirements for continuous operation.
Can TSC2010IYST operate with VREF1 and VREF2 unconnected?
No. Both VREF1 and VREF2 must be externally biased-typically tied together and driven to VCC/2-to establish the output midpoint for bidirectional sensing. Leaving them floating causes undefined output offset and potential saturation; the datasheet specifies 0 V to VCC range for valid operation.
How does the shutdown mode affect output behavior?
In shutdown mode (SHDN = low), the output enters high-impedance state-not tri-stated, but actively disabled-preventing loading of downstream circuitry. Output leakage remains <50 nA, and recovery time is 8 µs to full functionality after SHDN goes high, per DS13057 Rev 8 test conditions.
Is SO8 footprint compatible with MiniSO8 for TSC2010IYST?
No. TSC2010IYST uses standard SO8 (5.0 × 4.0 mm, 1.27 mm pitch); MiniSO8 is a smaller 4.9 × 3.9 mm package with 0.65 mm pitch and different pin spacing. They are mechanically and solder-reflow incompatible-PCB layout and stencil must match the specified SO8 footprint.
TSC2010IYST 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:
- 7.5V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 820 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MiniSO
TSC2010IYST FAQ
1.How can I place an order for TSC2010IYST through Aetrix?
Please submit a Request for Quotation (RFQ) for TSC2010IYST 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 TSC2010IYST reliable?
The price and inventory of TSC2010IYST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSC2010IYST is usually 5 days.
3.What payment methods are accepted for TSC2010IYST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSC2010IYST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSC2010IYST?
TSC2010IYST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSC2010IYST 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 TSC2010IYST?
For technical support, including TSC2010IYST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSC2010IYST requirements.
6.How does Aetrix verify that TSC2010IYST is sourced from the original manufacturer or authorized distributors?
All TSC2010IYST 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 TSC2010IYST meets industry standards.
7.What is the process for return or replacement of TSC2010IYST?
All TSC2010IYST units undergo pre-shipment inspection (PSI). If there is an issue with TSC2010IYST, 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 TSC2010IYST part is unused and in its original packaging.
Return procedure for TSC2010IYST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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