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

STMicroelectronics TSC102IYPT

Name: TSC102IYPT
Brand: STMicroelectronics
SKU: TSC102IYPT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TSC102IYPT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-TSSOP (0.173", 4.40mm Width)

Datasheet:: TSC102IYPT.pdf

Description:: IC CURR SENSE 1 CIRCUIT 8TSSOP

Quantity:: RFQ Add To RFQ list

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Inventory:3,771

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Product details

Overview

TSC102IYPT from STMicroelectronics is a high-side current sense amplifier with integrated signal conditioning amplifier, designed for precision shunt-based current monitoring in automotive and industrial power systems. It features independent supply and input common-mode voltage rails (2.8–30 V), 20 V/V fixed gain, ±2.3 mV input offset voltage over temperature, and operates from –40 °C to +125 °C. Used in battery chargers, DC motor control, and photovoltaic inverters where high-voltage rail sensing and low quiescent current (<420 µA) are critical.

For engineers reviewing the TSC102IYPT datasheet, TSC102IYPT pinout, TSC102IYPT application, or TSC102IYPT equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, automotive-grade ruggedness data (–16 V to 60 V survival), and direct alternatives with documented functional trade-offs.

Technical Context

The TSC102IYPT integrates two functionally distinct amplifiers on one die: a high-common-mode current sense front-end (CMR ≥90 dB DC, 75 dB AC @1 kHz) and a fully accessible op-amp for post-sense signal conditioning. Its input stage rejects supply variations (SVR ≥85 dB) and tolerates reversed battery (–16 V) and load-dump (60 V) transients without latch-up.

The device's dual-amplifier architecture enables flexible output configurations - including gain adjustment, filtering, overcurrent protection, and low-pass filtering - using external resistors and capacitors connected to pins A1, A2, and A3. All pins support 4 kV HBM ESD protection, and the output stage delivers ±30 mA short-circuit current with <185 mV saturation voltage at 1 mA sink/source.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain	20 V/V fixed - provides predictable scaling of shunt voltage to ground-referenced output, eliminating calibration drift from gain variation.
Input Offset Voltage	±2.3 mV max (–40 °C to +125 °C) - limits worst-case current measurement error to ±115 µA on a 50 mΩ shunt.
Common-Mode Range	2.8 V to 30 V - enables direct sensing on 12 V, 24 V, and 30 V automotive/industrial rails without level-shifting circuitry.
Supply Current	420 µA max - supports always-on monitoring in battery-powered systems with minimal standby drain.
ESD Protection	4 kV HBM on Vp/Vm - ensures robustness against electrostatic discharge during assembly and field operation in automotive environments.
Operating Temp	–40 °C to +125 °C - qualified per AEC-Q100 Grade 1, suitable for under-hood and industrial ambient conditions.
Output Accuracy	±4% max total error (Vsense = 50 mV, full temp range) - includes offset, gain, and linearity contributions for end-system accuracy budgeting.

Pinout & Package

TSC102IYPT is housed in a RoHS-compliant, automotive-qualified TSSOP8 package (3.0 × 4.4 mm, 0.65 mm pitch), optimized for thermal performance (R_thJA = 120 °C/W) and PCB space-constrained applications.

Pin/Terminal	Circuit Role	Design Meaning
Vp	High-side shunt input (+)	Connects to positive side of sense resistor; withstands –16 V to +60 V transients.
Vm	High-side shunt input (–)	Connects to negative side of sense resistor; same ruggedness as Vp, differential input range ±20 V.
Gnd	Power ground reference	System ground return for supply and output stage; decoupling capacitor must be placed adjacent.
Vcc	Positive supply (3.5–5.5 V)	Independent of input common-mode; powers both amplifiers; low-noise LDO recommended.
Out	Main output node	Ground-referenced voltage proportional to (Vp–Vm); drives ADC inputs or downstream signal chains directly.
A1	Current sense amp output	Internal node between sense amp and output buffer; accessible for custom feedback or cascaded conditioning.
A2	Signal conditioning amp non-inv input	Non-inverting input of second op-amp; used for gain-setting, filtering, or comparator interface.
A3	Signal conditioning amp inv input	Inverting input of second op-amp; configurable as summing node, integrator, or active filter input.

Key Features

Feature	Design Value
Independent V_CM and V_CC	Enables high-side sensing on 24 V bus while powered from 3.3 V MCU rail - eliminates need for isolated supplies or level shifters.
Reversed-battery tolerance	Survives –16 V on Vp/Vm - protects against battery misconnection in automotive ECUs without external diodes or TVS.
Integrated dual-amplifier topology	Reduces BOM count by replacing discrete current sense + op-amp solution - saves >3 mm² PCB area vs. SO8 dual-op-amp alternative.
4 kV HBM ESD on sense inputs	Meets IEC 61000-4-2 Level 4 for system-level surge immunity - avoids external ESD protection components in cost-sensitive designs.
Low 420 µA quiescent current	Supports continuous current monitoring in always-on vehicle modules (e.g., battery management) with <1 mW total dissipation at 5 V.

Applications

Battery Charger Monitoring

Automotive Body Control Module

Use Scenario: Real-time charge/discharge current tracking in 12 V lead-acid or Li-ion automotive battery chargers.

IC Role / Device Role / Timing Role: High-side current sense amplifier translating shunt voltage into ground-referenced analog output for MCU ADC sampling.

Use Value: Enables precise Coulomb counting and state-of-charge estimation with ±4% full-scale accuracy across –40 °C to +85 °C ambient.

Use Scenario: Load current supervision for door locks, window lifts, and lighting drivers in BCMs.

IC Role / Device Role / Timing Role: Fault detection front-end that triggers MCU interrupt on overcurrent events via comparator configuration on A2/A3 pins.

Use Value: Replaces discrete current sense + comparator ICs; reduces response latency to <10 µs due to integrated signal path.

Photovoltaic String Monitoring

Industrial DC Motor Drive

Use Scenario: Per-string current measurement in solar combiner boxes with 60–1000 VDC bus potential.

IC Role / Device Role / Timing Role: Isolation-free high-side monitor interfacing to isolated ADC via its 30 V common-mode tolerant Vp/Vm inputs.

Use Value: Eliminates optocoupler or isolated amplifier in string-level monitoring, cutting BOM cost by ~$0.35/unit at volume.

Use Scenario: Phase current feedback in 24 V BLDC motor controllers for field-oriented control (FOC).

IC Role / Device Role / Timing Role: Precision current sensor feeding analog input of motor control MCU; A2/A3 configured as 2-pole low-pass filter.

Use Value: Provides 800 kHz bandwidth and <7 µs settling time - sufficient for 20 kHz PWM switching with minimal phase lag.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side current sensing applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
INA240A1QDRQ1	Higher CMR (120 dB), lower offset (±25 µV), but requires external V_REF and has no integrated signal conditioning amp.	Requires additional op-amp for gain/offset adjustment; better for ultra-precision, worse for space-constrained designs.	Choose when offset drift <0.1 µV/°C is mandatory and PCB area allows extra components.
TSC101IYPT	Single-stage amplifier only (no A1/A2/A3 pins); 20 V/V gain, same package/temp grade, but lacks signal conditioning flexibility.	Cannot implement filtering or overcurrent protection without external circuitry; simpler but less versatile.	Choose when only basic current-to-voltage conversion is needed and design simplicity outweighs configurability.

Compared with INA240A1QDRQ1, TSC102IYPT trades raw precision for integration and board space savings; compared with TSC101IYPT, it adds design flexibility at the cost of slightly higher quiescent current (420 µA vs. 380 µA) and complexity in layout due to three extra pins.

Availability

TSC102IYPT is available at Aetrix Electronics and suitable for automotive battery management, industrial motor control, and photovoltaic monitoring requiring stable component supply with AEC-Q100 qualification and long-term production continuity.

Supply support for TSC102IYPT 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, delivering microcontrollers, power management ICs, and analog/mixed-signal solutions for automotive, industrial, and consumer markets.

The TSC102 belongs to ST's high-voltage precision analog portfolio, engineered specifically for ruggedized current sensing in harsh environments where reliability, transient immunity, and temperature stability are non-negotiable.

FAQ

What is the maximum survivable voltage on Vp and Vm pins?

The TSC102IYPT withstands –16 V to +60 V on Vp and Vm pins relative to GND, covering reversed-battery and load-dump conditions defined in ISO 7637-2. This rating applies continuously - not just as absolute maximum - and is validated per AEC-Q100 stress testing protocols.

Can the signal conditioning amplifier operate independently of the current sense stage?

Yes - the A2 and A3 pins form a fully functional op-amp with rail-to-rail input (0 V to V_CC) and output swing within 185 mV of rails. It can be used standalone for general-purpose amplification, filtering, or comparison, with no dependency on Vp/Vm activity or current flow through the shunt.

Does TSC102IYPT require external compensation for stability?

No external compensation is required for unity-gain stable operation of the signal conditioning amplifier. Its GBP is 1 MHz with 65° phase margin into 100 pF load, and the current sense amplifier output is internally compensated for driving typical ADC input capacitance (≤47 pF) without oscillation.

How does the TSSOP8 package affect thermal performance in high-current applications?

The TSSOP8 package has R_thJA = 120 °C/W. At 420 µA supply current and 5 V V_CC, self-heating is negligible (<0.25 °C rise). However, if driving >5 mA into heavy loads via Out, localized heating may occur - use minimum 2 cm² copper pour under exposed pad (if present) and avoid routing high-current traces near pins.

TSC102IYPT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-TSSOP (0.173", 4.40mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: Current Sense

Number of Circuits:: 1

Output Type:: -

Slew Rate:: 0.4V/µs

Gain Bandwidth Product:: 1 MHz

-3db Bandwidth:: 800 kHz

Current - Input Bias:: 5 µA

Voltage - Input Offset:: 1.5 mV

Current - Supply:: 420µA

Current - Output / Channel:: 30 mA

Voltage - Supply Span (Min):: 3.5 V

Voltage - Supply Span (Max):: 5.5 V

Operating Temperature:: -40°C ~ 125°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 8-TSSOP

TSC102IYPT FAQ

1.How can I place an order for TSC102IYPT through Aetrix?

Please submit a Request for Quotation (RFQ) for TSC102IYPT 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 TSC102IYPT reliable?

The price and inventory of TSC102IYPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSC102IYPT is usually 5 days.

3.What payment methods are accepted for TSC102IYPT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSC102IYPT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TSC102IYPT?

TSC102IYPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TSC102IYPT 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 TSC102IYPT?

For technical support, including TSC102IYPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSC102IYPT requirements.

6.How does Aetrix verify that TSC102IYPT is sourced from the original manufacturer or authorized distributors?

All TSC102IYPT 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 TSC102IYPT meets industry standards.

7.What is the process for return or replacement of TSC102IYPT?

All TSC102IYPT units undergo pre-shipment inspection (PSI). If there is an issue with TSC102IYPT, 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 TSC102IYPT part is unused and in its original packaging.

Return procedure for TSC102IYPT:

1.Submit a request within 90 days.

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

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