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Home > Products > Sensors, Transducers > Current Sensors

Infineon Technologies TLE4973R025T5US0010XUMA1

Name: TLE4973R025T5US0010XUMA1
Brand: Infineon Technologies
SKU: TLE4973R025T5US0010XUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4973R025T5US0010XUMA1

Manufacturer:: Infineon Technologies

Category:: Current Sensors

Package:: 8-PowerTDFN

Datasheet:: TLE4973R025T5US0010XUMA1.pdf

Description:: SPEED & CURRENT SENSORS

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TLE4973R025T5US0010XUMA1 from Infineon Technologies is a high-accuracy, coreless, galvanically isolated current sensor IC for internal current rail sensing in automotive and industrial power systems. It delivers ±27 A full-scale DC/AC measurement with 5 V supply, ratiometric single-ended analog output (VDD/2 quiescent), and integrated over-current detection (<1.0 µs response). Used in on-board chargers and PV inverters where ultra-low insertion loss (220 µΩ) and ASIL B–compliant safety are required.

For engineers reviewing the TLE4973R025T5US0010XUMA1 datasheet, TLE4973R025T5US0010XUMA1 pinout, TLE4973R025T5US0010XUMA1 application, or TLE4973R025T5US0010XUMA1 equivalent, key selection criteria include its differential Hall sensing architecture, EEPROM-programmable OCD threshold, DCDI one-wire diagnostic interface, and UL 1577-certified 1150 V_VIORM isolation.

Technical Context

The device employs a differential Hall plate pair embedded adjacent to an integrated copper current rail, eliminating magnetic saturation and hysteresis. Its signal conditioning chain includes temperature- and stress-compensated offset correction, enabling <±0.5% sensitivity error over -40°C to +125°C and <±0.1% offset drift over lifetime.

Functional safety is implemented via ISO 26262-compliant Safety Element out of Context (SEooC), supporting ASIL B system integration. The Digital Control Diagnostic Interface (DCDI) provides UART-based read/write access to internal registers, real-time temperature monitoring, OCD status, and EEPROM calibration data - all configurable in-system without external programming hardware.

Key Specifications

Parameter	Value and Actual Design Meaning
Full Scale Range	±27 A - Linear sensing range optimized for mid-power applications like OBC pre-charge and UPS branch monitoring.
Supply Voltage	4.5–5.5 V - Ratiometric operation ensures analog output scaling directly with VDD, simplifying ADC reference coupling.
Quiescent Output	VDD / 2 - Centered analog output enables bidirectional current sensing with single-supply ADCs.
Insertion Resistance	220 µΩ typical - Minimizes conduction loss (<0.15 W at 27 A RMS), critical for thermal management in compact SMD layouts.
Isolation Rating	1150 V_VIORM - Galvanic functional isolation meets reinforced insulation requirements per UL 1577 for 400 V_RMS systems.
OCD Response Time	<1.0 µs - Enables fast fault shutdown in IGBT/MOSFET gate drivers before destructive energy accumulation.
Bandwidth	250 kHz - Supports accurate current waveform capture up to 5th harmonic of 50 kHz switching converters.

Pinout & Package

Package: PG-TISON-8-6 (8 mm × 8 mm × 2.3 mm SMD, exposed thermal pad).

Pin/Terminal	Circuit Role	Design Meaning
1 VDD	Primary supply input	5 V nominal power rail; decoupling capacitor required within 5 mm for noise immunity.
2 GND	Analog/digital ground reference	Common return for VDD, AOUT, OCD, and DCDI; must connect to low-impedance ground plane.
3 VREF	Reference voltage input	No-connect pin; must be left floating per datasheet to avoid signal path interference.
4 AOUT	Analog current-sense output	Ratiometric single-ended voltage (0.5×VDD ± sensitivity × I_{IN); drives ≤6.8 nF load capacitance.}
5 OCD	Open-drain over-current flag	Active-low assertion on threshold breach; requires external pull-up to VDD for logic-level compatibility.
6 DCDI	One-wire UART interface	Bi-directional digital control/diagnostic port; auto-addressing supports daisy-chained multi-sensor buses.
7 IP−	Negative current terminal	Current-out path; forms low-inductance loop with IP+ for precise field generation across Hall plates.
8 IP+	Positive current terminal	Current-in path; integrated copper rail minimizes parasitic inductance and thermal resistance.

Key Features

Feature	Design Value
Differential Hall Sensing	Rejects >40 dB of uniform external magnetic stray fields - enables reliable operation near motors, transformers, or busbars.
In-System EEPROM Calibration	End-of-line sensitivity and offset trimming via DCDI eliminates factory calibration fixtures and reduces test time.
Configurable OCD Threshold	User-defined trip point (e.g., 1.39×FS = 37.5 A) with deglitch filter - prevents false triggers from transient spikes.
ASIL B Safety Element	Pre-certified SEooC with diagnostic coverage for offset drift, supply undervoltage, and communication errors - accelerates ISO 26262 FMEDA.
Thermal Stability	Offset drift <±0.1% over lifetime and temperature - eliminates need for periodic recalibration in sealed enclosures.

Applications

On-Board Charger (OBC)

PV Inverter DC Link Monitoring

Use Scenario: Real-time bidirectional current measurement during AC/DC conversion and battery charging phases.

IC Role / Device Role / Timing Role: Coreless current sensor providing isolated analog feedback to MCU-controlled PFC and LLC stages.

Use Value: 220 µΩ insertion resistance minimizes heat generation in space-constrained OBC modules, while ASIL B compliance satisfies automotive functional safety requirements.

Use Scenario: High-bandwidth DC-side current monitoring in string inverters to detect ground faults and optimize MPPT efficiency.

IC Role / Device Role / Timing Role: Isolated analog current transducer feeding ADC inputs for fast-loop current control and protection logic.

Use Value: 250 kHz bandwidth captures ripple harmonics from high-frequency SiC switching, and 1150 V_VIORM isolation supports 1000 V DC system ratings.

Smart Circuit Breaker

Industrial UPS Branch Protection

Use Scenario: Precision overload detection and energy metering in DIN-rail mounted smart breakers with communication interfaces.

IC Role / Device Role / Timing Role: Primary current sensing element with integrated OCD output driving solid-state trip actuation circuitry.

Use Value: Sub-microsecond OCD response enables selective coordination with upstream breakers, and EEPROM storage retains calibration across firmware updates.

Use Scenario: Continuous current supervision of parallel UPS output branches to prevent uneven load sharing and thermal runaway.

IC Role / Device Role / Timing Role: Galvanically isolated current monitor interfacing with redundant microcontrollers for dual-check safety architecture.

Use Value: UL 1577 certification validates isolation integrity under sustained overvoltage stress, and ratiometric output simplifies integration with existing 5 V ADC subsystems.

Equivalent & Alternatives

The following parts are listed as comparable options for similar coreless current sensing applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ACS724LLCTR-20AU-T	20 A FS, 5 V supply, 1.5 mΩ insertion resistance, no integrated OCD or DCDI interface.	Lacks ASIL B qualification and EEPROM programmability; suited for non-safety-critical consumer power supplies.	Select when cost sensitivity outweighs safety certification and diagnostics needs.
TLE4972R025T5U	Same package and pinout, but single-ended output only (no differential mode), lower bandwidth (120 kHz), no UL certification.	Not UL 1577 certified; limited to non-hazardous location industrial use without reinforced insulation validation.	Select only if UL certification and 250 kHz bandwidth are not required for the target application.

Compared with ACS724LLCTR-20AU-T and TLE4972R025T5U, the TLE4973R025T5US0010XUMA1 uniquely combines ASIL B SEooC, UL 1577 isolation, sub-µs OCD, and in-system programmability - making it the only option qualified for automotive-grade OBC and grid-tied inverter safety-critical current monitoring.

Availability

TLE4973R025T5US0010XUMA1 is available at Aetrix Electronics and suitable for on-board chargers, PV inverters, and smart circuit breakers requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.

Supply support for TLE4973R025T5US0010XUMA1 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

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and quality certifications including IATF 16949.

The TLE4973 belongs to Infineon's XENSIV™ current sensor product line, engineered specifically for high-accuracy, isolated current measurement in electric vehicle traction inverters, renewable energy systems, and industrial motor drives.

FAQ

What is the maximum primary current the TLE4973R025T5US0010XUMA1 can measure continuously?

The device supports continuous DC or AC current up to ±27 A full scale with guaranteed linearity and accuracy. Absolute maximum primary current ratings allow short-duration peaks up to ±250 A (10 µs), but sustained operation beyond ±27 A risks saturation and measurement error outside the specified linear range.

How is galvanic isolation achieved in this sensor, and what standards does it meet?

Isolation is achieved through integrated capacitive barrier technology between the current rail and signal die, rated for 1150 V_VIORM per UL 1577 and validated for partial discharge ≥1200 V. It complies with reinforced insulation requirements for 400 V_RMS systems and supports functional safety up to ASIL B per ISO 26262.

Can the over-current detection threshold be modified after soldering to the PCB?

Yes - the OCD threshold is fully configurable via the DCDI one-wire interface using Infineon's proprietary command set. Users can adjust ITHR (e.g., from default 1.39×FS = 37.5 A) and enable/disable the deglitch filter without removing the device from the board.

Does the TLE4973R025T5US0010XUMA1 require external calibration during system production?

No - the device ships pre-calibrated across temperature and includes on-chip EEPROM for end-of-line calibration storage. Final system calibration can be performed in situ via DCDI, eliminating fixture-dependent factory calibration steps and reducing test overhead.

TLE4973R025T5US0010XUMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 8-PowerTDFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

For Measuring:: DC

Sensor Type:: Hall Effect

Current - Sensing:: -

Number of Channels:: 1

Output:: Analog Voltage

Sensitivity:: -

Frequency:: 210kHz

Linearity:: -

Accuracy:: -

Voltage - Supply:: 4.5V ~ 5.5V

Response Time:: -

Current - Supply (Max):: 25mA

Operating Temperature:: -40°C ~ 150°C

Grade:: -

Qualification:: -

Polarization:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-TISON-8-6

TLE4973R025T5US0010XUMA1 FAQ

1.How can I place an order for TLE4973R025T5US0010XUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4973R025T5US0010XUMA1 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 TLE4973R025T5US0010XUMA1 reliable?

The price and inventory of TLE4973R025T5US0010XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4973R025T5US0010XUMA1 is usually 5 days.

3.What payment methods are accepted for TLE4973R025T5US0010XUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4973R025T5US0010XUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4973R025T5US0010XUMA1?

TLE4973R025T5US0010XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4973R025T5US0010XUMA1 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 TLE4973R025T5US0010XUMA1?

For technical support, including TLE4973R025T5US0010XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4973R025T5US0010XUMA1 requirements.

6.How does Aetrix verify that TLE4973R025T5US0010XUMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4973R025T5US0010XUMA1 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 TLE4973R025T5US0010XUMA1 meets industry standards.

7.What is the process for return or replacement of TLE4973R025T5US0010XUMA1?

All TLE4973R025T5US0010XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4973R025T5US0010XUMA1, 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 TLE4973R025T5US0010XUMA1 part is unused and in its original packaging.

Return procedure for TLE4973R025T5US0010XUMA1:

1.Submit a request within 90 days.

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

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