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Home > Products > Sensors, Transducers > Current Sensors

Infineon Technologies TLE4973R050T5S0001XUMA1

Name: TLE4973R050T5S0001XUMA1
Brand: Infineon Technologies
SKU: TLE4973R050T5S0001XUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4973R050T5S0001XUMA1

Manufacturer:: Infineon Technologies

Category:: Current Sensors

Package:: 8-PowerTDFN

Datasheet:: TLE4973R050T5S0001XUMA1.pdf

Description:: SPEED & CURRENT SENSORS

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Product details

Overview

TLE4973R050T5S0001XUMA1 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 ±55 A full-scale DC/AC measurement with 220 µΩ insertion resistance, 5 V supply, and configurable differential analog output - enabling precise, low-loss current monitoring in on-board chargers and PV inverters.

For engineers reviewing the TLE4973R050T5S0001XUMA1 datasheet, TLE4973R050T5S0001XUMA1 pinout, TLE4973R050T5S0001XUMA1 application, or TLE4973R050T5S0001XUMA1 equivalent, this device supports ASIL B safety compliance, sub-1 µs over-current detection, in-system EEPROM calibration via DCDI interface, and operation across –40 °C to +125 °C ambient.

Technical Context

The TLE4973R050T5S0001XUMA1 employs a differential Hall plate architecture with integrated current rail, eliminating magnetic saturation and hysteresis. Its signal path includes temperature- and stress-compensated amplification, programmable output modes (semi-differential, fully-differential), and quiescent output voltage fixed at VDD/2.

Functional isolation up to 1150 V_VIORM is achieved via reinforced insulation; the DCDI one-wire UART interface enables read/write access to EEPROM-stored parameters (OCD threshold, sensitivity, ratiometricity), temperature readout, and safety status reporting - supporting up to 8 slaves per bus with auto-addressing.

Key Specifications

Parameter	Value and Actual Design Meaning
Full Scale Range	±55 A - linear sensing range optimized for mid-power traction inverters and OBC primary-side rails.
Supply Voltage	4.5–5.5 V - compatible with standard 5 V automotive power domains; 21 mA typical operating current.
Insertion Resistance	220 µΩ - ultra-low conduction loss (<11 mW at 55 A RMS) enabling high-efficiency system design.
Over-Current Detection	<1.0 µs max response - hardware-fast OCD output supports IGBT/MOSFET short-circuit protection in motor drives.
Isolation Rating	1150 V_VIORM, ≥1200 V partial discharge - meets reinforced insulation requirements for ASIL B functional safety.
Output Configuration	Semi-differential analog output (AOUT referenced to VREF) - suppresses common-mode noise in noisy power environments.
Operating Temperature	–40 °C to +125 °C (solder point) - qualified per AEC-Q100 Grade 1 for under-hood and power module applications.

Pinout & Package

Package: PG-TISON-8-6 (8-pin SMD, 8 mm × 8 mm × 1.2 mm body, exposed thermal pad).

Pin/Terminal	Circuit Role	Design Meaning
1 VDD	Power supply input	5 V nominal supply; decoupling capacitor required within 10 mm of pin for noise immunity.
2 GND	Ground reference	Low-impedance return path for analog and digital sections; connects to PCB ground plane under thermal pad.
3 VREF	Reference voltage terminal	Configurable 1.25 V or 2.5 V input/output; sets common-mode level for semi-differential AOUT operation.
4 AOUT	Analog output	Differential output voltage centered at VDD/2; 0–5 V swing proportional to sensed current (±55 A → ±2.5 V).
5 OCD	Over-current detection	Open-drain output pulled low during fault; requires external pull-up to VDD for logic-level compatibility.
6 DCDI	Digital control/diagnostic interface	One-wire UART (3.3 V tolerant); enables in-system programming, temperature readout, and safety diagnostics.
7 IP−	Negative current terminal	Current-out path; forms low-inductance, symmetric current rail with IP+ for minimal field distortion.
8 IP+	Positive current terminal	Current-in path; integrated copper trace with 220 µΩ resistance; soldered directly to PCB power plane.

Key Features

Feature	Design Value
Coreless differential Hall sensing	Eliminates saturation/hysteresis errors and enables stable performance across wide temperature and lifetime cycles.
Programmable OCD threshold	User-configurable via EEPROM; default set to ±1.39×FS (±76.5 A) but adjustable to match system protection margins.
Ratiometric analog output	Output scaling tied to VDD ensures immunity to supply ripple - critical for accurate current reconstruction in noisy 12 V domains.
Integrated current rail	Monolithic copper path with 220 µΩ resistance and <1 nH inductance - minimizes parasitic effects in high-di/dt applications.
ASIL B Safety Element out of Context	Pre-certified safety documentation provided; supports ISO 26262 integration without requiring full FMEDA rework.

Applications

On-Board Charger (OBC)

PV Inverter DC Link Monitoring

Use Scenario: Real-time bidirectional current measurement on the AC/DC converter primary side during charging and vehicle-to-grid (V2G) operation.

IC Role / Device Role / Timing Role: Coreless current sensor providing isolated, high-bandwidth feedback to the MCU's ADC for closed-loop power regulation.

Use Value: 220 µΩ insertion resistance minimizes thermal loss in compact OBC designs; ±1.5 % total error over temperature ensures SOC accuracy.

Use Scenario: DC-link current monitoring in string inverters to detect ground faults and optimize MPPT efficiency under partial shading.

IC Role / Device Role / Timing Role: Galvanically isolated analog sensor interfacing with isolated sigma-delta modulator for high-resolution current digitization.

Use Value: 1150 V_VIORM isolation enables direct placement on high-voltage DC bus; sub-1 µs OCD triggers fast DC breaker activation.

Industrial Motor Drive

Smart Circuit Breaker

Use Scenario: Phase current sensing in 3-phase IGBT-based servo drives operating at 20 kHz PWM switching frequency.

IC Role / Device Role / Timing Role: High-bandwidth current feedback element feeding FOC algorithm in real time; OCD output directly gates gate driver shutdown.

Use Value: Differential sensing rejects stray fields from adjacent phases; 200 kHz bandwidth preserves current waveform fidelity at high di/dt.

Use Scenario: Precision load current monitoring and instantaneous trip decision in DIN-rail mounted smart breakers for data center PDUs.

IC Role / Device Role / Timing Role: Primary current sensing element with embedded EEPROM calibration enabling factory-trimmed accuracy without external shunt resistors.

Use Value: Pre-calibrated offset stability (<±0.2 % FS over life) eliminates field recalibration; DCDI interface enables firmware-based trip curve updates.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ACS724LLCTR-50AB-T	Open-loop Hall effect; 50 A FS; 2.5 V ratiometric output; no integrated rail; 2.5 kV_ISO isolation.	Lacks ASIL B certification, OCD, and DCDI diagnostics; limited to non-safety-critical industrial use.	Select when cost-sensitive, non-automotive designs require basic isolation without functional safety or programmability.
TLE4971M050T5S0001XUMA1	Same package and pinout; lower accuracy (±1.5 % vs ±0.7 % typ); no EEPROM; fixed OCD threshold; no DCDI interface.	Targeted at cost-optimized ASIL B systems where in-field calibration and diagnostics are not required.	Select when production volume justifies simplified qualification and reduced feature set suffices for safety architecture.

Compared with ACS724LLCTR-50AB-T and TLE4971M050T5S0001XUMA1, the TLE4973R050T5S0001XUMA1 provides superior long-term offset stability, field-programmable OCD, and integrated safety documentation - making it optimal for automotive-grade OBCs and ISO 26262-compliant inverters where diagnostic coverage and calibration flexibility are mandatory.

Availability

TLE4973R050T5S0001XUMA1 is available at Aetrix Electronics and suitable for on-board chargers, photovoltaic inverters, and industrial motor drives requiring stable component supply, AEC-Q100 Grade 1 qualification, and ASIL B safety compliance.

Supply support for TLE4973R050T5S0001XUMA1 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 microcontrollers, and sensor solutions, with global R&D and manufacturing infrastructure.

The TLE4973 belongs to Infineon's XENSIV™ high-accuracy current sensor product line, engineered specifically for coreless, galvanically isolated current measurement in safety-critical automotive and renewable energy power conversion systems.

FAQ

What is the maximum primary current the TLE4973R050T5S0001XUMA1 can safely measure?

The device is rated for ±55 A full-scale linear range, with absolute maximum primary current peaks of ±250 A for 10 µs (10 assertions over lifetime). Continuous operation must remain within ±55 A to maintain specified accuracy and thermal limits. The integrated 220 µΩ current rail sustains 70 A RMS at thermal equilibrium on Infineon's reference PCB.

How does the DCDI interface function, and what can be configured via it?

The DCDI is a one-wire UART interface supporting read/write access to internal registers and EEPROM. Users can configure OCD thresholds, ratiometricity, output mode (semi-/fully-differential), and perform end-of-line calibration. It also enables real-time temperature readout, safety status polling, and diagnostic mode activation - all without requiring additional communication lines.

Is external calibration required before using the TLE4973R050T5S0001XUMA1 in production?

No - the device ships pre-calibrated over temperature (–40 °C to +125 °C) with factory-trimmed offset and sensitivity. However, in-system end-of-line calibration is supported via DCDI to compensate for board-level thermal gradients and layout-induced offsets, improving system-level accuracy beyond factory specs.

Can the TLE4973R050T5S0001XUMA1 replace shunt-based current sensing in high-voltage applications?

Yes - its 1150 V_VIORM reinforced isolation and galvanic separation eliminate the need for expensive isolated amplifiers or optocouplers used with shunts. With 220 µΩ insertion resistance and no power dissipation penalty, it replaces shunts in DC-link monitoring up to 1000 V systems while reducing BOM count and PCB area.

TLE4973R050T5S0001XUMA1 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

TLE4973R050T5S0001XUMA1 FAQ

1.How can I place an order for TLE4973R050T5S0001XUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4973R050T5S0001XUMA1 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 TLE4973R050T5S0001XUMA1 reliable?

The price and inventory of TLE4973R050T5S0001XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4973R050T5S0001XUMA1 is usually 5 days.

3.What payment methods are accepted for TLE4973R050T5S0001XUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4973R050T5S0001XUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4973R050T5S0001XUMA1?

TLE4973R050T5S0001XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4973R050T5S0001XUMA1 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 TLE4973R050T5S0001XUMA1?

For technical support, including TLE4973R050T5S0001XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4973R050T5S0001XUMA1 requirements.

6.How does Aetrix verify that TLE4973R050T5S0001XUMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4973R050T5S0001XUMA1 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 TLE4973R050T5S0001XUMA1 meets industry standards.

7.What is the process for return or replacement of TLE4973R050T5S0001XUMA1?

All TLE4973R050T5S0001XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4973R050T5S0001XUMA1, 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 TLE4973R050T5S0001XUMA1 part is unused and in its original packaging.

Return procedure for TLE4973R050T5S0001XUMA1:

1.Submit a request within 90 days.

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

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