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STMicroelectronics TSC2012HYDT
- Part No.:
- TSC2012HYDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TSC2012HYDT.pdf
- Description:
- IC CURRENT SENSE 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,945
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Product details
Overview
TSC2012HYDT from STMicroelectronics is a precision bidirectional current sense amplifier with 100 V/V fixed gain, -20 to +70 V wide common-mode input range, ±200 µV max offset voltage, and SO8 package. It operates from 2.7–5.5 V supply across -40 to +150 °C, enabling high-accuracy shunt-based current monitoring in high-voltage industrial motor control and solenoid drive circuits.
For engineers reviewing the TSC2012HYDT datasheet, TSC2012HYDT pinout, TSC2012HYDT application, or TSC2012HYDT equivalent, this device delivers verified bidirectional sensing capability, rail-to-rail output swing, low quiescent current (20 µA shutdown), and robust CMRR (>90 dB) - critical for high-side/low-side current feedback in safety-critical power stages.
Technical Context
The TSC2012HYDT implements a precision instrumentation amplifier architecture optimized for differential sensing across extreme common-mode voltages. Its input stage supports operation down to -20 V and up to +70 V relative to ground while maintaining <0.3% gain error and 5 µV/°C offset drift over full temperature range.
It features dual reference inputs (VREF1/VREF2) for flexible output offset adjustment, active-high shutdown with 5 µs turn-off time, and internal protection against overvoltage transients on IN+ and IN− pins. The output drives loads up to ±30 mA with <30 mV drop at full-scale current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 100 V/V - scales 24 mV full-scale shunt voltage to 2.4 V output at VCC = 5 V, enabling direct ADC interfacing without external amplification |
| Common-Mode Range | -20 V to +70 V - supports high-side sensing in 48 V battery systems and low-side sensing in negative-rail industrial PLCs |
| Offset Voltage | ±200 µV max (RTI) - contributes ≤0.83% error at 24 mV sense range, critical for sub-1% current measurement accuracy |
| Supply Voltage | 2.7 V to 5.5 V - compatible with both 3.3 V microcontrollers and 5 V legacy control logic |
| Operating Temperature | -40 °C to +150 °C - qualified for under-hood automotive actuators and industrial motor drives with extended thermal margins |
| Shutdown Current | 20 µA max - enables energy-efficient periodic current sampling in battery-powered condition monitoring nodes |
| Small-Signal Bandwidth | 330 kHz (typ.) - sufficient for closed-loop current control in PWM-driven BLDC motors switching up to 20 kHz |
Pinout & Package
Supplied in SO8 (Small Outline, 8-pin) package with standard 1.27 mm pitch, surface-mount footprint, and exposed pad for thermal dissipation in high-power 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 path; must be star-connected to minimize noise coupling into sensitive analog inputs |
| 3 VREF2 | Reference voltage 2 | Second reference input for ratiometric offset tuning; used with VREF1 to set output zero point |
| 4 SHDN | Shutdown control | Active-high digital input; pulls output to high-impedance state when driven low, reducing supply current to 20 µA |
| 5 OUT | Analog output | Rail-to-rail output capable of sourcing/sinking ±30 mA; interfaces directly to SAR or sigma-delta ADC inputs |
| 6 VCC | Positive supply | 2.7–5.5 V power input; requires local 100 nF ceramic decoupling capacitor placed within 2 mm of pin |
| 7 VREF1 | Reference voltage 1 | Primary reference input for output offset calibration; tied together with VREF2 for symmetric ratiometric adjustment |
| 8 IN+ | Positive input | Connects to high side of shunt resistor; enables bidirectional current detection via polarity-sensitive output swing |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional sensing | Outputs positive voltage for current flow from IN+ to IN−, negative voltage for reverse flow - enables regenerative braking current monitoring |
| High CMRR | ≥90 dB DC CMRR ensures immunity to bus voltage ripple in noisy 48 V EV subsystems |
| Low drift performance | 5 µV/°C max offset drift maintains calibration stability across automotive under-hood thermal cycles |
| Fast transient recovery | ≤2 µs recovery from 50 V common-mode step - prevents false overcurrent trips during load dump events |
| Ratiometric reference support | VREF1/VREF2 inputs allow output zero-point alignment to ADC reference, eliminating system-level offset errors |
Applications
| Industrial Motor Control | Solenoid Actuator Monitoring |
|---|---|
|
Use Scenario: Real-time phase current measurement in 3-phase inverter driving 1–5 kW PMSM motors. IC Role / Device Role / Timing Role: High-side current sense amplifier feeding isolated ADC for field-oriented control loop. Use Value: 100 V/V gain and 330 kHz bandwidth enable accurate current reconstruction at 20 kHz PWM frequency with minimal phase lag. |
Use Scenario: Closed-loop current regulation in 24 V solenoid valves used in hydraulic proportional control systems. IC Role / Device Role / Timing Role: Low-side bidirectional current monitor providing feedback to DAC-controlled H-bridge driver. Use Value: ±200 µV offset ensures <1% error at 100 mA hold current; -40 to +150 °C rating matches valve ambient requirements. |
| 48 V Battery Management | Programmable Logic Controller I/O |
|
Use Scenario: Input current supervision for DC-DC converters in mild-hybrid vehicle 48 V subsystems. IC Role / Device Role / Timing Role: High-side current sensor detecting overcurrent faults before MOSFET short-circuit propagation. Use Value: -20 to +70 V common-mode range covers full battery voltage swing including load dump transients up to +65 V. |
Use Scenario: Analog input module measuring 4–20 mA loop current in industrial PLC backplanes. IC Role / Device Role / Timing Role: Precision shunt amplifier converting loop current to 0–5 V signal for microcontroller ADC. Use Value: 0.3% gain error and 0.03% linearity ensure Class 0.5 accuracy per IEC 61000-4-30 compliance for process control. |
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 (fixed), 80 V common-mode, 50 µV max offset, SO8 | Limited to unidirectional sensing unless external level-shifting; lower gain requires post-amplification for small shunts | Select when ultra-low offset dominates over gain flexibility and bidirectional capability is not required |
| TSC2011HYDT | 60 V/V gain, identical package, same temp range and CMV, but higher Vsense operating range (39.3 mV) | Better suited for larger shunt resistors where 60× gain yields optimal ADC utilization without clipping | Choose when design uses ≥5 mΩ shunt and prioritizes margin over maximum resolution at low currents |
Compared with INA240A1QDRQ1, TSC2012HYDT provides higher gain and native bidirectionality but slightly higher offset; versus TSC2011HYDT, it trades wider Vsense range for finer current resolution at sub-100 mA levels - critical for precision solenoid hold-current control.
Availability
TSC2012HYDT is available at Aetrix Electronics and suitable for industrial motor control, 48 V battery management, and programmable logic controller I/O requiring stable component supply across extended temperature and high-voltage operating conditions.
Supply support for TSC2012HYDT 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 specializing in power management, analog, and automotive-grade ICs with ISO/TS 16949 certified manufacturing.
The TSC20xxH series targets high-reliability current sensing in harsh environments - designed specifically for industrial automation, automotive electrification, and energy infrastructure where wide common-mode range and extended temperature operation are mandatory.
FAQ
What is the minimum shunt voltage this device can accurately measure?
The TSC2012HYDT achieves ≤0.3% gain error down to 22.7 mV differential input (Vsense) at full temperature range. With ±200 µV offset, it resolves currents corresponding to ~23 mV across a shunt - enabling use with 10 mΩ resistors at 2.3 A full scale while maintaining sub-1% total error.
Can TSC2012HYDT be used for high-side sensing in a 60 V system?
Yes. Its -20 V to +70 V common-mode input range explicitly supports high-side sensing in 60 V nominal systems, including transient overvoltages. The datasheet confirms stable operation at Vicm = 70 V with no degradation in gain error or offset drift, provided supply voltage remains within 2.7–5.5 V.
How does the dual reference input (VREF1/VREF2) improve system accuracy?
VREF1 and VREF2 allow precise ratiometric offset adjustment: tying both to mid-supply (e.g., VCC/2) centers the output at 2.5 V for bidirectional sensing, while connecting them to an external reference eliminates dependency on VCC tolerance - reducing total error by up to 0.1% compared to single-reference architectures.
Is layout guidance available for minimizing noise in high-CMV applications?
Yes. STMicroelectronics recommends symmetrical PCB routing for IN+ and IN− traces, guard ring around input pins connected to GND, separation of analog and digital grounds at single-point star connection, and placement of 100 nF ceramic decoupling capacitor within 2 mm of VCC and GND pins - all validated in DS13791 layout examples on pages 42–44.
TSC2012HYDT 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:
- Push-Pull
- Slew Rate:
- 3.9V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 750 kHz
- Current - Input Bias:
- 35 µA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 1.5mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 150°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TSC2012HYDT FAQ
1.How can I place an order for TSC2012HYDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSC2012HYDT 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 TSC2012HYDT reliable?
The price and inventory of TSC2012HYDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSC2012HYDT is usually 5 days.
3.What payment methods are accepted for TSC2012HYDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSC2012HYDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSC2012HYDT?
TSC2012HYDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSC2012HYDT 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 TSC2012HYDT?
For technical support, including TSC2012HYDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSC2012HYDT requirements.
6.How does Aetrix verify that TSC2012HYDT is sourced from the original manufacturer or authorized distributors?
All TSC2012HYDT 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 TSC2012HYDT meets industry standards.
7.What is the process for return or replacement of TSC2012HYDT?
All TSC2012HYDT units undergo pre-shipment inspection (PSI). If there is an issue with TSC2012HYDT, 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 TSC2012HYDT part is unused and in its original packaging.
Return procedure for TSC2012HYDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSC2012HYDT Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
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LM2902PWR
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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