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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

STMicroelectronics TSC202IYDT

Name: TSC202IYDT
Brand: STMicroelectronics
SKU: TSC202IYDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TSC202IYDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: TSC202IYDT.pdf

Description:: SO 08 .15 JEDEC

Quantity:: RFQ Add To RFQ list

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Inventory:2,389

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Product details

Overview

TSC202IYDT from STMicroelectronics is a high-side/low-side current sense amplifier with integrated open-drain comparator, 100 V/V fixed gain, −16 to +80 V common-mode input range, 2.7–18 V supply, and AEC-Q100 qualification for automotive use. It delivers analog output voltage proportional to shunt current and enables latched overcurrent protection in battery management, motor drives, and telecom power supplies.

For engineers reviewing the TSC202IYDT datasheet, TSC202IYDT pinout, TSC202IYDT application, or TSC202IYDT equivalent, key selection criteria include its 100 V/V gain accuracy (±2% total error), 0.6 V internal reference for comparator threshold setting, latch-enabled fault detection, and SO8 package compatibility with high-voltage PCB layout constraints.

Technical Context

The TSC202 operates across three functional modes determined by input common-mode voltage (V_ICM) relative to V_CC: Mode 1 (V_ICM > 40% V_CC) activates amplifier A2; Mode 2 (V_ICM < 40% V_CC) activates amplifier A1; Mode 3 (V_sense < 20 mV) exhibits elevated offset. Its topology avoids traditional instrumentation amplifier matching constraints while delivering 100–120 dB CMRR and ±0.5 µV/°C offset drift.

Comparator functionality uses an internal 0.6 V reference with 586–625 mV trip threshold, 9 mV hysteresis, and active-low RESET pin (1.1 V threshold). The open-drain CMPOUT supports pull-up to 2.7–18 V independent of V_CC, enabling direct interface with 3.3 V or 5 V logic systems without level shifters.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain	100 V/V - sets full-scale output = 100 × shunt voltage; enables 10 mV sense resolution at 1 V output
Common-mode range	−16 V to +80 V - supports high-side sensing in 48 V telecom, 60 V EV battery, and negative-rail industrial systems
Total output error	±3.5 % - includes gain error and input offset; defines worst-case current measurement uncertainty over −40 to +125 °C
Bandwidth	0.3 MHz - limits response to fast overcurrent events; settles within 2 µs for 1% accuracy (CL = 5 pF)
Quiescent current	1.8 mA max - enables low-power operation in always-on automotive modules and portable test equipment
Comparator threshold	586–625 mV - referenced to internal 0.6 V bandgap; external resistor divider sets precise overcurrent trip point
Supply voltage	2.7 V to 18 V - powers directly from 3.3 V logic rails or unregulated 12 V automotive batteries

Pinout & Package

Supplied in SO8 package (ECOPACK2, RoHS-compliant, 1.75 mm height), with exposed pad for thermal dissipation in high-current applications.

Pin/Terminal	Circuit Role	Design Meaning
1 VCC	Positive supply input	Accepts 2.7–18 V; powers both amplifier and comparator; decoupling capacitor required near pin
2 OUT	Analog output	100× differential input voltage; rail-to-rail swing (V_CC−0.25 V / 65 mV); drives 10 kΩ load
3 CMPIN	Comparator inverting input	Connected to internal 0.6 V reference; external resistor divider sets overcurrent threshold
4 GND	Analog ground return	Common reference for amplifier, comparator, and output; must be star-connected to minimize noise
5 RESET	Active-low comparator reset	Pulled low to clear latched fault; internal 2 MΩ pull-down ensures defined state if left open
6 CMPOUT	Open-drain comparator output	Sinks up to 2.35 mA; requires external pull-up to 2.7–18 V; asserts low on overcurrent event
7 VIN−	Current sense amplifier negative input	Connects to shunt resistor low side; input bias current ±0.5–16 µA affects low-current accuracy
8 VIN+	Current sense amplifier positive input	Connects to shunt resistor high side; supports −16 V to +80 V common-mode; no external bias needed

Key Features

Feature	Design Value
AEC-Q100 qualified	Rated for automotive Grade 1 (−40 to +125 °C); validated for vibration, ESD (4 kV HBM), and lifetime reliability
Integrated 0.6 V reference	Stable bandgap reference feeds comparator; eliminates need for external precision voltage source
Latching comparator	Holds CMPOUT low after overcurrent detection until RESET is pulsed; prevents transient false trips
High CMRR	100–120 dB over −16 to +80 V common-mode range; rejects noise from switching power supplies
Wide supply range	Operates from 2.7 V (3.3 V logic) to 18 V (12 V automotive); simplifies system-level power architecture

Applications

Automotive Battery Management

Telecom Power Amplifier Monitoring

Use Scenario: Real-time monitoring of 12 V/48 V battery pack charge/discharge current in ADAS ECUs.

IC Role / Device Role / Timing Role: High-side current sense amplifier with latched comparator detects overcurrent faults during regenerative braking or short-circuit events.

Use Value: Enables fail-safe shutdown within microseconds using CMPOUT signal; AEC-Q100 qualification ensures reliability across temperature and vibration stress.

Use Scenario: Continuous current monitoring of RF power amplifier supply rail in 5G base station transceivers.

IC Role / Device Role / Timing Role: High-common-mode amplifier senses current through shunt in +48 V supply line; comparator triggers thermal derating before PA damage.

Use Value: −16 to +80 V input range accommodates reverse-polarity protection and transient surges; 0.3 MHz bandwidth captures fast PA current spikes.

Industrial Motor Drive Protection

Test Equipment Current Source Calibration

Use Scenario: Overcurrent detection in three-phase inverter half-bridge legs for HVAC compressors and pumps.

IC Role / Device Role / Timing Role: Low-side current sensing with latched comparator provides fault flag to MCU for immediate IGBT gate shutdown.

Use Value: 100 V/V gain yields 1 V output per 10 mV shunt drop; ±3.5 % total error meets IEC 61800-5-1 functional safety requirements.

Use Scenario: Precision current sourcing verification in automated benchtop calibration systems for multimeters and DMMs.

IC Role / Device Role / Timing Role: Reference-grade current sense amplifier validates output accuracy of programmable current sources under varying load conditions.

Use Value: 0.5 µV/°C offset drift and 100 dB+ CMRR ensure stable readings across ambient temperature swings and noisy lab environments.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage current sense amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
INA240A1QDRQ1	Gain = 20 V/V (fixed), CMR = −4 to +80 V, no integrated comparator or reference	Requires external comparator and reference for overcurrent latching; better DC accuracy (±0.2% gain error)	Choose when ultra-low offset (±5 µV) and higher precision outweigh need for integrated protection logic
MAX40056ATA+T	Gain = 100 V/V, CMR = −0.2 to +65 V, comparator with adjustable delay, no internal reference	Lacks internal 0.6 V reference; requires external reference for threshold setting; supports faster response (0.5 µs)	Prefer when system already includes precision reference and needs sub-microsecond fault response in high-speed inverters

Compared with INA240A1QDRQ1 and MAX40056ATA+T, the TSC202IYDT uniquely integrates comparator latching and a 0.6 V reference in SO8, reducing BOM count and PCB area for automotive and telecom overcurrent protection-while trading minor gain error tolerance for functional integration.

Availability

TSC202IYDT is available at Aetrix Electronics and suitable for automotive battery management, telecom power amplifier monitoring, and industrial motor drive protection requiring stable component supply across extended temperature and voltage ranges.

Supply support for TSC202IYDT 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, designing and manufacturing microcontrollers, power management ICs, sensors, and analog products for automotive, industrial, and consumer markets.

The TSC202 belongs to ST's high-voltage current sense amplifier product line, engineered specifically for robust overcurrent protection in automotive and telecom infrastructure where wide common-mode range and integrated fault handling are critical.

FAQ

What is the minimum shunt voltage the TSC202IYDT can accurately measure?

The TSC202IYDT is specified for accurate operation above 20 mV differential input (V_sense). Below this threshold, input bias current effects and transconductance degradation cause increased offset-up to 0.4 V output error at V_sense = 0 mV in Mode 3. For reliable measurement, design shunt resistance to ensure ≥20 mV drop at minimum expected current.

How does the RESET pin function during power-up?

At power-up, the comparator enters a defined reset state if RESET is open or grounded-ensuring CMPOUT starts low. If RESET is held high during startup, CMPOUT powers up high and requires an active-low pulse to initialize latched behavior. Internal 2 MΩ pull-down guarantees safe default state when RESET is unconnected.

Can the TSC202IYDT be used for low-side current sensing?

Yes-the TSC202IYDT supports both high-side and low-side configurations. In low-side mode, VIN− connects to ground and VIN+ to shunt output; common-mode voltage remains near 0 V, placing operation in Mode 2. Accuracy remains within ±3.5 % total error, though CMRR is optimized for high-side use.

What is the maximum capacitive load allowed on the OUT pin?

The OUT pin tolerates up to 10 nF capacitive load without sustained oscillation, as verified in electrical characterization. Exceeding this value may degrade settling time or cause instability; for driving ADC inputs or long traces, add a series resistor (e.g., 10–100 Ω) to isolate capacitance and maintain 2 µs settling to 1%.

TSC202IYDT 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:: Single-Ended

Slew Rate:: 7V/µs

Gain Bandwidth Product:: -

-3db Bandwidth:: 300 kHz

Current - Input Bias:: 5 pA

Voltage - Input Offset:: 100 µV

Current - Supply:: 840µA

Current - Output / Channel:: -

Voltage - Supply Span (Min):: 2.7 V

Voltage - Supply Span (Max):: 18 V

Operating Temperature:: -40°C ~ 125°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SO

TSC202IYDT FAQ

1.How can I place an order for TSC202IYDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TSC202IYDT 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 TSC202IYDT reliable?

The price and inventory of TSC202IYDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSC202IYDT is usually 5 days.

3.What payment methods are accepted for TSC202IYDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSC202IYDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TSC202IYDT?

TSC202IYDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TSC202IYDT 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 TSC202IYDT?

For technical support, including TSC202IYDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSC202IYDT requirements.

6.How does Aetrix verify that TSC202IYDT is sourced from the original manufacturer or authorized distributors?

All TSC202IYDT 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 TSC202IYDT meets industry standards.

7.What is the process for return or replacement of TSC202IYDT?

All TSC202IYDT units undergo pre-shipment inspection (PSI). If there is an issue with TSC202IYDT, 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 TSC202IYDT part is unused and in its original packaging.

Return procedure for TSC202IYDT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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