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STMicroelectronics TSC215IQT
- Part No.:
- TSC215IQT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-WFQFN
- Datasheet:
-
TSC215IQT.pdf
- Description:
- LOW / HIGH SIDE BIDIRECTIONAL, Z
- Quantity:
- Payment:
- Shipping:
Inventory:2,424
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Product details
Overview
TSC215IQT 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 features 75 V/V fixed gain, ±1% max gain error, 0.1 µV/°C max offset drift, 100 µA quiescent current, and operates from 2.7 V to 26 V supply over -40 °C to +125 °C - enabling accurate battery charge/discharge monitoring in portable power systems.
For engineers reviewing the TSC215IQT datasheet, TSC215IQT pinout, TSC215IQT application, or TSC215IQT equivalent, key selection criteria include input offset voltage (±60 µV max), CMRR (100–120 dB), output swing capability (VCC−0.2 V / 30 mV above GND), noise (39 nV/√Hz), and support for SC70-6 and QFN10 packages with validated pin mapping.
Technical Context
The TSC215IQT employs a proprietary zero-drift chopper-stabilized architecture with thin-film resistors to achieve ultra-low offset drift (0.1 µV/°C) and high DC precision. Its input stage draws bias current from the common-mode rail when Vicm > 2.5 V, enabling operation beyond the supply rail - critical for high-side sensing in 24 V industrial buses.
Output common-mode voltage is programmable via the REF pin, supporting unidirectional (GND- or VCC-referenced) and bidirectional (mid-rail referenced) configurations. Gain is fixed at 75 V/V by internal resistor ratios (R1/R2 = 1 MΩ / 13.3 kΩ), eliminating external gain-setting components and ensuring stable performance across temperature and supply variations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 75 V/V - fixed internal ratio enables precise, component-free current-to-voltage conversion with no external resistor tolerance impact. |
| Offset voltage (RTI) | ±60 µV max - ensures ≤0.8 mV full-scale error at 10.7 mV shunt drop (for 10 A × 1.07 mΩ), critical for low-current accuracy. |
| CMRR | 100–120 dB - rejects up to 100,000× common-mode interference, essential for noisy 24 V motor drive or telecom power rails. |
| Supply range | 2.7 V to 26 V - supports single-supply operation across battery (3.3 V), USB PD (20 V), and industrial 24 V systems without level-shifting. |
| Common-mode range | −0.3 V to +26 V - enables true high-side and low-side sensing, including negative ground-referenced battery discharge paths. |
| Quiescent current | 100 µA - allows always-on current monitoring in energy-sensitive applications like IoT battery packs and wearables. |
| Bandwidth | 60 kHz - sufficient for DC–10 kHz current loop feedback in switched-mode power supplies and motor controllers. |
| Input noise | 39 nV/√Hz - limits RMS noise to ~312 nV over 10 kHz bandwidth, preserving resolution for sub-mA current detection. |
Pinout & Package
Available in SC70-6 (1.6 mm × 1.6 mm) and QFN10 (1.8 mm × 1.4 mm, 0.5 mm pitch) packages. Both variants share identical functional pin assignment with package-specific pin numbering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REF | Reference voltage input | Programs output common-mode level; sets bidirectional zero-current output voltage (e.g., VCC/2) or unidirectional baseline (GND or VCC). |
| GND | Ground reference | Primary return path for internal circuitry and output stage; must be low-impedance to maintain CMRR and noise immunity. |
| VCC | Power supply | Primary supply rail (2.7–26 V); powers internal amplifiers and bias circuits; also serves as secondary power source when Vicm > 2.5 V. |
| VIN+ | Non-inverting input | Connects to high-side of shunt resistor; accepts common-mode voltages up to +26 V independent of VCC. |
| VIN− | Inverting input | Connects to low-side of shunt resistor; differential pair with VIN+ senses mV-level shunt voltage with rail-to-rail common-mode tolerance. |
| OUT | Analog output | Single-ended voltage output scaled by 75× shunt voltage; swings to within 30 mV of GND and VCC−0.2 V under 10 kΩ load. |
| NC | No-connect terminal | Unused pins (SC70-6 Pin 1; QFN10 Pins 7 & 8) - must remain floating or tied to GND/VCC per layout guidelines to avoid parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Eliminates 1/f noise and thermal drift, delivering <0.3 µV/°C total offset variation over −40 °C to +125 °C for stable long-term calibration. |
| Extended common-mode range | Operates with inputs at −0.3 V to +26 V regardless of VCC, enabling direct high-side sensing on 24 V bus without level-shifting or isolation. |
| Programmable output common mode | REF pin accepts externally set voltage (GND, VCC, or mid-rail) to configure unidirectional or bidirectional current measurement with full dynamic range. |
| Low quiescent power | 100 µA ICC enables continuous current monitoring in battery-powered devices with <1 mW standby consumption at 10 V supply. |
| High-precision internal gain | 75 V/V set by laser-trimmed thin-film resistors ensures ±1% gain error and <20 ppm/°C drift - removes need for external gain calibration. |
| Robust ESD protection | 4 kV HBM and 1 kV CDM rating allow safe handling and integration into automated PCB assembly lines without special ESD controls. |
Applications
| Battery Management System (BMS) | Industrial 24 V Power Supply Monitoring |
|---|---|
|
Use Scenario: Real-time bidirectional current measurement in lithium-ion battery packs during charge (0–3 A) and discharge (0–10 A) cycles. IC Role / Device Role / Timing Role: Current sense amplifier converting shunt voltage to amplified analog output for ADC sampling at 1 kHz update rate. Use Value: ±60 µV offset enables <±6 mA detection resolution at 1 mΩ shunt; REF pin configured to VCC/2 supports symmetric ±5 V output swing for full-range bidirectional reporting. |
Use Scenario: High-side current monitoring in programmable 24 V DC-DC converters for factory automation I/O modules. IC Role / Device Role / Timing Role: Precision current sensor feeding analog feedback loop to regulate output current limit and detect short-circuit faults within 100 µs. Use Value: −0.3 V to +26 V common-mode range allows direct connection to high-side of 24 V output rail; 60 kHz bandwidth supports fast overcurrent response without phase lag. |
| Notebook Computer Power Delivery | USB-C PD Fast Charging Adapter |
|
Use Scenario: Input current sensing on 20 V USB PD input rail to enforce system-level power budgeting and thermal throttling. IC Role / Device Role / Timing Role: Unidirectional current monitor with REF tied to GND, providing 0–3.75 V output proportional to 0–5 A input current. Use Value: 100 µA quiescent current minimizes self-heating in thermally constrained laptop chassis; SC70-6 footprint saves board space near USB-C connector. |
Use Scenario: Output current sensing in 45 W USB-C PD adapter to implement constant-current regulation and cable compensation. IC Role / Device Role / Timing Role: Low-side current amplifier with REF tied to VCC, delivering rail-to-rail output for accurate 0–3 A sensing across variable load conditions. Use Value: 75 V/V gain optimizes signal-to-noise ratio for 2 mΩ shunt; 39 nV/√Hz input noise ensures <±10 mA measurement uncertainty at full scale. |
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 | Fixed 200 V/V gain, ±120 µV offset, 105 dB CMRR, SOIC-8 package only | Higher gain suits lower-current applications (<1 A); larger SOIC-8 footprint unsuitable for space-constrained USB-C adapters | Select when higher gain and SOIC compatibility outweigh need for 75 V/V matching and QFN10 miniaturization. |
| MAX40010FAUA+ | 75 V/V gain, ±100 µV offset, 110 dB CMRR, 125 °C max temp, 8-pin µMAX | Same gain but wider offset spec; µMAX package has higher thermal resistance (280 °C/W) vs. QFN10 (124 °C/W), limiting power density | Prefer for legacy µMAX designs where pinout compatibility matters; avoid in thermally dense BMS modules requiring low θJA. |
Compared with INA240A1IDR and MAX40010FAUA+, the TSC215IQT delivers tighter offset (±60 µV), superior thermal performance (124 °C/W QFN10), and dual-package flexibility - making it optimal for compact, high-accuracy, wide common-mode current sensing in battery and 24 V industrial systems.
Availability
TSC215IQT is available at Aetrix Electronics and suitable for battery management systems, industrial 24 V power supplies, and USB-C PD fast charging adapters requiring stable component supply, long-lifecycle assurance, and RoHS-compliant packaging.
Supply support for TSC215IQT 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 microcontrollers, power ICs, sensors, and analog products for automotive, industrial, and consumer markets.
The TSC21x series belongs to ST's precision analog portfolio, engineered specifically for high-accuracy, rail-to-rail common-mode current sensing in battery-powered and industrial power systems - emphasizing zero-drift stability, wide supply range, and flexible unidirectional/bidirectional operation.
FAQ
What is the maximum common-mode voltage the TSC215IQT can handle?
The TSC215IQT supports a common-mode input voltage range of −0.3 V to +26 V, independent of supply voltage. This allows direct high-side sensing on 24 V industrial buses and negative-ground battery discharge paths without external level-shifting circuitry. Operation remains fully specified across this range at temperatures from −40 °C to +125 °C.
Can the TSC215IQT be used for bidirectional current sensing?
Yes - the REF pin enables bidirectional operation by setting the output common-mode voltage to any value between GND and VCC. When REF is biased to VCC/2, the output swings symmetrically around mid-rail (e.g., 2.5 V at 5 V supply), allowing equal positive/negative current measurement ranges. This configuration is widely used in battery charge/discharge monitoring and motor control H-bridge sensing.
What package options are available for the TSC215IQT?
The TSC215IQT is offered in two industry-standard packages: SC70-6 (1.6 mm × 1.6 mm) and QFN10 (1.8 mm × 1.4 mm, 0.5 mm pitch). Both share identical pin functions and electrical specifications. The QFN10 provides lower thermal resistance (124 °C/W) for higher-power-density layouts, while SC70-6 offers compatibility with legacy small-outline footprints and simplified reflow profiles.
How does the TSC215IQT achieve its low offset drift?
The TSC215IQT uses ST's proprietary zero-drift chopper-stabilized architecture combined with laser-trimmed thin-film resistors. This eliminates 1/f noise and minimizes thermal drift, resulting in a guaranteed maximum offset drift of 0.1 µV/°C over −40 °C to +125 °C. The architecture continuously corrects input-stage mismatches, maintaining DC precision without external calibration.
TSC215IQT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 10-WFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.42V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 60 kHz
- Current - Input Bias:
- 28 µA
- Voltage - Input Offset:
- -
- 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-QFN (1.8x1.4)
TSC215IQT FAQ
1.How can I place an order for TSC215IQT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSC215IQT 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 TSC215IQT reliable?
The price and inventory of TSC215IQT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSC215IQT is usually 5 days.
3.What payment methods are accepted for TSC215IQT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSC215IQT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSC215IQT?
TSC215IQT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSC215IQT 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 TSC215IQT?
For technical support, including TSC215IQT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSC215IQT requirements.
6.How does Aetrix verify that TSC215IQT is sourced from the original manufacturer or authorized distributors?
All TSC215IQT 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 TSC215IQT meets industry standards.
7.What is the process for return or replacement of TSC215IQT?
All TSC215IQT units undergo pre-shipment inspection (PSI). If there is an issue with TSC215IQT, 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 TSC215IQT part is unused and in its original packaging.
Return procedure for TSC215IQT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSC215IQT 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
Texas Instruments
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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
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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