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STMicroelectronics TSC2011IDT
- Part No.:
- TSC2011IDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TSC2011IDT.pdf
- Description:
- IC CURRENT SENSE 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:17,714
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Product details
Overview
TSC2011IDT 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 TSC2011IDT datasheet, TSC2011IDT pinout, TSC2011IDT application, or TSC2011IDT equivalent, key selection criteria include its 60 V/V gain accuracy (±0.3%), 5 µV/°C offset drift, SO8 package compatibility, and support for bidirectional sensing down to ±40 mV full-scale input at 125 °C.
Technical Context
The TSC2011IDT uses a precision instrumentation amplifier architecture with rail-to-rail output and dual reference inputs (VREF1/VREF2) enabling ratiometric or absolute offset adjustment. Its input stage operates over -25 V to +76 V absolute common-mode voltage, decoupled from supply rails.
It features active-high shutdown (SHDN), delivering 20 µA quiescent current in sleep mode, and supports dynamic operation up to 500 kHz small-signal bandwidth at 5 V supply. Output swing is specified to within 15–35 mV of rails under 0.2 mA load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 60 V/V - fixed ratio converts ±40 mV differential input to ±2.4 V output, enabling direct ADC interfacing without external scaling. |
| Common-Mode Range | -20 V to +70 V - supports sensing across battery stacks, 48 V industrial buses, and negative-rail systems without level-shifting. |
| Offset Voltage | ±200 µV max (RTI) - ensures ≤0.5% error at 40 mV full-scale sense voltage, critical for low-current detection. |
| Supply Voltage | 2.7–5.5 V - compatible with 3.3 V and 5 V logic domains and mixed-voltage system designs. |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive, factory automation, and power conversion environments. |
| Shutdown Current | 20 µA max - reduces system standby power in battery-powered or energy-sensitive applications. |
| CMRR | 85–120 dB - rejects noise from high-dv/dt switching nodes (e.g., MOSFET gate drivers) in motor phase-leg sensing. |
Pinout & Package
Supplied in SO8 package (ECOPACK2, RoHS-compliant), 150 °C junction-rated, with standard 1.27 mm pitch and exposed pad optional per variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN- | Negative current sense input | Connects to shunt resistor low-side; accepts common-mode voltages down to -20 V independent of VCC. |
| 2 GND | Analog ground reference | Return path for internal biasing; must be tied to low-impedance system ground near shunt. |
| 3 VREF2 | Secondary reference input | Used with VREF1 for offset trimming or ratiometric configuration; supports 0 to VCC range. |
| 4 SHDN | Active-high shutdown control | Pulling high disables output and reduces supply current to 20 µA; requires clean digital logic edge. |
| 5 OUT | Amplified current-sense output | Rail-to-rail output drives ADCs or comparators; sinks/source up to 60 mA at 5 V. |
| 6 VCC | Positive supply input | Accepts 2.7–5.5 V; bypass capacitor mandatory (100 nF ceramic) close to pin. |
| 7 VREF1 | Primary reference input | Configures zero-current output level; tied to mid-supply for bidirectional operation. |
| 8 IN+ | Positive current sense input | Connects to shunt resistor high-side; tolerates +70 V common-mode while referenced to GND. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional sensing capability | Supports current flow in either direction via dual reference inputs (VREF1/VREF2), enabling real-time motor phase current reversal detection. |
| High CMV immunity | -20 V to +70 V common-mode range allows direct placement on high-side of 48 V DC bus without isolation or attenuation networks. |
| Low offset drift | 5 µV/°C max ensures stable zero-point calibration over industrial temperature range (-40 to +125 °C), reducing thermal recalibration needs. |
| Integrated shutdown | Active-high SHDN reduces quiescent current to 20 µA, enabling power-gating in portable or always-on monitoring systems. |
| Gain error stability | 0.3% max gain error with 25 ppm/°C drift maintains measurement linearity across voltage and temperature variations. |
Applications
| Motor Phase Current Monitoring | Solenoid Driver Feedback |
|---|---|
|
Use Scenario: Real-time measurement of bidirectional current in BLDC motor half-bridge legs during commutation. IC Role / Device Role / Timing Role: High-side current sense amplifier converting shunt voltage to conditioned analog output synchronized with PWM switching. Use Value: Enables precise field-oriented control (FOC) with <0.5% full-scale error at 125 °C, supporting torque ripple reduction and overcurrent fault response in <1 µs. |
Use Scenario: Closed-loop current regulation in industrial solenoid valves operating from 24–48 V DC supplies. IC Role / Device Role / Timing Role: Low-drift bidirectional amplifier feeding analog input of microcontroller ADC for proportional current control. Use Value: Maintains ±0.3% gain accuracy across temperature, ensuring consistent valve force output despite ambient shifts from -40 to +85 °C. |
| Industrial Power Supply OCP | Data Acquisition Channel |
|
Use Scenario: Overcurrent protection in programmable DC power supplies with adjustable current limits up to 20 A. IC Role / Device Role / Timing Role: High-bandwidth (500 kHz) current monitor feeding comparator or digital controller for fast trip response. Use Value: Delivers 4 µs turn-on time and 4 µs turn-off time, enabling sub-10 µs fault detection before MOSFET destruction. |
Use Scenario: Precision current channel in modular test equipment measuring leakage, bias, or load currents from µA to 10 A. IC Role / Device Role / Timing Role: Ratiometric-configurable amplifier with VREF1/VREF2 inputs enabling calibrated zero-offset and gain scaling. Use Value: Achieves 0.03% linearity error and 37 nV/√Hz input-referred noise, supporting 16-bit effective resolution in 100 kSPS acquisition. |
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 | 20 V/V gain, 80 V common-mode range, higher 120 kHz bandwidth, but 100 µV offset drift (vs. 5 µV/°C) | Better suited for high-speed motor control where bandwidth >500 kHz is required, but less stable over wide temperature swings | Select when common-mode exceeds +70 V or when lower gain simplifies signal chain; verify offset drift impact on long-term calibration. |
| MAX4080FASA+ | Fixed 100 V/V gain, 76 V common-mode, ±150 µV offset, no shutdown pin, SO8 package | Optimized for unidirectional high-gain sensing (e.g., battery charge monitoring); lacks bidirectional reference flexibility | Choose for cost-sensitive, single-direction applications requiring minimal external components; not suitable for motor phase reversal detection. |
Compared with INA240A1QDRQ1 and MAX4080FASA+, the TSC2011IDT uniquely balances 60 V/V gain, ultra-low 5 µV/°C offset drift, and dual-reference bidirectional operation-making it optimal for thermally demanding, reversible current measurement where gain and zero-point stability are co-critical.
Availability
TSC2011IDT is available at Aetrix Electronics and suitable for industrial motor control, solenoid driver feedback, and programmable power supply overcurrent protection requiring stable component supply across extended temperature and voltage ranges.
Supply support for TSC2011IDT 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 was designed specifically for high-accuracy, wide common-mode current sensing in harsh industrial environments-emphasizing thermal stability, EMC robustness, and seamless integration with MCU-based control systems.
FAQ
What is the maximum common-mode voltage the TSC2011IDT can tolerate?
The TSC2011IDT supports an absolute common-mode input range of -25 V to +76 V per Absolute Maximum Ratings, with guaranteed functional operation from -20 V to +70 V across the full -40 °C to +125 °C temperature range. This allows direct connection to high-side shunts in 48 V systems without external level-shifting circuitry.
How does the dual reference (VREF1/VREF2) configuration enable bidirectional sensing?
VREF1 and VREF2 set the output zero-current baseline: tying both to VCC/2 centers the output at mid-supply, so positive and negative differential inputs produce symmetrical output swings. This eliminates need for external op-amps or digital post-processing to resolve current direction in motor or H-bridge applications.
Can the TSC2011IDT be used with a 3.3 V microcontroller ADC without level-shifting?
Yes-the TSC2011IDT's rail-to-rail output delivers 0–3.3 V swing when powered from 3.3 V supply and configured with VREF1 = VREF2 = 1.65 V. Its 15 mV typical VOL and 30 mV typical VOH ensure full code utilization of a 12-bit ADC without external buffering or scaling.
What layout considerations minimize error in high-CMV PCB designs?
Place the device adjacent to the shunt resistor with symmetric, short, and matched IN+ and IN- traces; use separate analog ground pour isolated from noisy power grounds; route VCC and GND with low-inductance paths; and avoid routing high-dv/dt signals near IN pins to preserve >85 dB CMRR performance.
TSC2011IDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 8V/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-SOIC
TSC2011IDT FAQ
1.How can I place an order for TSC2011IDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSC2011IDT 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 TSC2011IDT reliable?
The price and inventory of TSC2011IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSC2011IDT is usually 5 days.
3.What payment methods are accepted for TSC2011IDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSC2011IDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSC2011IDT?
TSC2011IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSC2011IDT 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 TSC2011IDT?
For technical support, including TSC2011IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSC2011IDT requirements.
6.How does Aetrix verify that TSC2011IDT is sourced from the original manufacturer or authorized distributors?
All TSC2011IDT 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 TSC2011IDT meets industry standards.
7.What is the process for return or replacement of TSC2011IDT?
All TSC2011IDT units undergo pre-shipment inspection (PSI). If there is an issue with TSC2011IDT, 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 TSC2011IDT part is unused and in its original packaging.
Return procedure for TSC2011IDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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