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Home > Products > Sensors, Transducers > Current Sensors

Infineon Technologies TLE4973A050T5S0001XUMA1

Name: TLE4973A050T5S0001XUMA1
Brand: Infineon Technologies
SKU: TLE4973A050T5S0001XUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4973A050T5S0001XUMA1

Manufacturer:: Infineon Technologies

Category:: Current Sensors

Package:: 8-PowerTDFN

Datasheet:: TLE4973A050T5S0001XUMA1.pdf

Description:: SPEED & CURRENT SENSORS

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Product details

Overview

TLE4973A050T5S0001XUMA1 from Infineon Technologies is a high-accuracy, coreless magnetic current sensor for internal current rail sensing in automotive and industrial power systems. It delivers ±55 A full-scale DC/AC measurement with 5 V supply, differential analog output (semi-differential mode), and integrated over-current detection with <1.0 µs response. Its 220 µΩ insertion resistance, galvanic isolation up to 1150 V_VIORM, and AEC-Q100 Grade 1 qualification make it suitable for on-board chargers and PV inverters.

For engineers reviewing the TLE4973A050T5S0001XUMA1 datasheet, TLE4973A050T5S0001XUMA1 pinout, TLE4973A050T5S0001XUMA1 application, or TLE4973A050T5S0001XUMA1 equivalent, key selection criteria include its ±55 A full-scale range, 220 µΩ current rail resistance, ISO 26262 ASIL B safety element out of context compliance, configurable OCD threshold, and DCDI one-wire diagnostic interface.

Technical Context

The TLE4973A050T5S0001XUMA1 employs a differential Hall plate architecture to eliminate saturation and hysteresis effects common in open-loop flux-concentrating sensors. Its integrated current rail enables direct PCB-level current path integration without external shunts or cores.

It features a fully programmable Digital Control Diagnostic Interface (DCDI) supporting auto-addressing for up to 8 slaves, real-time temperature readout, EEPROM-based end-of-line calibration, and safety status reporting - all via a single-wire UART-compatible bus.

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 monitoring
Supply Voltage	4.5–5.5 V - compatible with standard 5 V automotive power domains; 21–25 mA typical quiescent current
Current Rail Resistance	220 µΩ - ultra-low insertion loss (<1.1 W at 55 A RMS), enabling high-efficiency system design
Isolation Rating	1150 V_VIORM - functional galvanic isolation enabling safe high-voltage domain monitoring without optocouplers
OCD Response Time	<1.0 µs - enables fast fault shutdown in IGBT/MOSFET gate drivers and short-circuit protection circuits
Output Mode	Semi-differential analog - ratiometric or fixed-quiescent (2.5 V) output, rejecting common-mode noise in noisy power stages
Temperature Range	−40 °C to +125 °C (solder point) - qualified per AEC-Q100 Grade 1 for under-hood and power module applications
Safety Certification	ISO 26262 SEooC ASIL B - pre-verified safety element enabling reuse in ASIL B system architectures without full requalification

Pinout & Package

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

Pin/Terminal	Circuit Role	Design Meaning
1 VDD	Power supply input	5 V nominal supply; decoupling capacitor required near pin for noise immunity and transient response
2 GND	Ground reference	Common return for power, analog output, and digital interface; must be low-impedance connection to PCB ground plane
3 VREF	Reference voltage terminal	Configurable as 1.25 V or 2.5 V input (single-ended) or output (differential); programmed via EEPROM
4 AOUT	Analog output	Differential or semi-differential voltage output; 6–8 nF max capacitive load specified for stability
5 OCD	Over-current detection	Open-drain output asserting low on fault; requires external pull-up; <1.0 µs propagation delay
6 DCDI	Digital control/diagnostic	Single-wire UART interface for configuration, calibration, temperature readout, and safety status polling
7 IP−	Negative current terminal	Current-out path; forms integrated low-resistance shunt with IP+; soldered directly into high-current PCB trace
8 IP+	Positive current terminal	Current-in path; paired with IP− to define bidirectional current measurement direction and polarity

Key Features

Feature	Design Value
Differential Hall sensing	Eliminates magnetic hysteresis and saturation; achieves ±0.5% full-scale accuracy over lifetime and temperature
In-system EEPROM calibration	Enables end-of-line sensitivity and offset trimming without external equipment; supports field updates via DCDI
Configurable OCD threshold	User-programmable trip level (e.g., 1.39×FS = 76.5 A for ±55 A variant); deglitch filter prevents false triggering
Stray field immunity	Differential topology rejects >40 dB external magnetic interference - validated per ISO 11452-8 for automotive EMI robustness
Thermal stability	Offset drift <±0.5 µV/K; sensitivity error <±0.1%/K - critical for precision motor control and battery management
Multi-drop DCDI bus	Auto-addressing supports up to 8 sensors on one wire; reduces wiring complexity in multi-phase inverters or battery packs

Applications

On-Board Charger (OBC)

PV Inverter DC-Link Monitoring

Use Scenario: Real-time bidirectional current measurement on the AC input and DC-link side of a 11 kW OBC 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 for PWM control loop and energy metering.

Use Value: 220 µΩ insertion resistance minimizes conduction loss; ASIL B safety certification enables direct integration into ISO 26262-compliant OBC software stacks.

Use Scenario: High-precision DC current monitoring in the string-level or MPPT-stage of a residential solar inverter operating up to 1000 V DC.

IC Role / Device Role / Timing Role: Isolated current sensing element feeding analog data to an isolated ADC or directly to a safety MCU for over-current and arc-fault detection.

Use Value: 1150 V_VIORM isolation and −40 °C to +125 °C operation ensure reliability in outdoor enclosures; <1 µs OCD enables sub-cycle fault response.

Smart Circuit Breaker

Traction Inverter Phase Current Sensing

Use Scenario: Digital circuit breaker implementing real-time RMS current calculation, thermal modeling, and instantaneous trip logic for industrial distribution panels.

IC Role / Device Role / Timing Role: Primary current transducer interfacing to a dedicated protection ASIC or ARM Cortex-M7 safety core.

Use Value: Programmable OCD threshold and EEPROM-stored calibration enable adaptive trip curves; galvanic isolation eliminates need for external isolators.

Use Scenario: Phase-leg current feedback in a 400 V traction inverter for EV motor control, requiring high bandwidth and minimal phase delay.

IC Role / Device Role / Timing Role: High-fidelity current sensing node placed directly on the inverter's DC bus or phase output, delivering analog signal to gate driver IC or isolated amplifier.

Use Value: High bandwidth (>200 kHz) and low phase delay preserve FOC loop stability; differential output rejects common-mode noise from fast-switching SiC MOSFETs.

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-50AB-T	5 V supply, ±50 A range, 1.2 mΩ current path, no integrated EEPROM or DCDI interface	Lacks ASIL B safety qualification and digital diagnostics; limited to non-safety-critical industrial monitoring	Select when cost-sensitive designs require basic analog output without safety or configurability requirements
TMR2003D	3.3 V supply, ±50 A range, 150 µΩ resistance, TMR-based sensing, no OCD output or DCDI	No over-current detection pin or safety certification; lower bandwidth (~100 kHz) limits use in fast-switching inverters	Select when ultra-low power (12 mA) and highest sensitivity (100 mV/A) are prioritized over safety and diagnostics

Compared with ACS724LLCTR-50AB-T and TMR2003D, the TLE4973A050T5S0001XUMA1 uniquely combines ASIL B compliance, sub-microsecond OCD, in-system programmability, and 220 µΩ insertion loss - making it the only option qualified for automotive-grade OBC and traction inverter current feedback where safety, speed, and precision are co-required.

Availability

TLE4973A050T5S0001XUMA1 is available at Aetrix Electronics and suitable for on-board chargers, PV inverters, smart circuit breakers, and traction inverters requiring stable component supply across automotive and industrial production cycles.

Supply support for TLE4973A050T5S0001XUMA1 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 R&D and manufacturing infrastructure.

The XENSIV™ TLE4973 product line targets high-accuracy, safety-certified current sensing in electric drivetrains, renewable energy systems, and intelligent power distribution - emphasizing coreless architecture, galvanic isolation, and embedded diagnostics.

FAQ

What is the maximum continuous primary current rating for TLE4973A050T5S0001XUMA1?

The device supports ±55 A full-scale linear range with guaranteed accuracy. Absolute maximum continuous primary current is ±70 A (RMS at ≥10 Hz or peak at <10 Hz), verified per AEC-Q100 test conditions on Infineon reference PCB. Thermal derating applies above +105 °C ambient.

Can the OCD threshold be adjusted after soldering to the PCB?

Yes. The OCD threshold is stored in embedded EEPROM and can be reprogrammed in-system via the DCDI one-wire interface using standard UART commands. No external programming hardware is required - configuration is performed by the host MCU during startup or maintenance mode.

Does TLE4973A050T5S0001XUMA1 require external compensation components for temperature drift?

No. Temperature and stress compensation is fully integrated in silicon and factory-calibrated across −40 °C to +125 °C. The device outputs pre-compensated analog voltage with <±0.5 µV/K offset drift and <±0.1%/K sensitivity error - no external thermistors or lookup tables needed.

How is galvanic isolation achieved without a transformer or optocoupler?

Isolation is implemented via reinforced polyimide dielectric between the current-carrying rail and the sensor die inside the PG-TISON-8-6 package. This achieves 1150 V_VIORM working voltage and >1200 V partial discharge withstand - certified per DIN EN 60747-17 and IEC 60664-1, eliminating need for external isolation components.

TLE4973A050T5S0001XUMA1 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

TLE4973A050T5S0001XUMA1 FAQ

1.How can I place an order for TLE4973A050T5S0001XUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4973A050T5S0001XUMA1 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 TLE4973A050T5S0001XUMA1 reliable?

The price and inventory of TLE4973A050T5S0001XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4973A050T5S0001XUMA1 is usually 5 days.

3.What payment methods are accepted for TLE4973A050T5S0001XUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4973A050T5S0001XUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4973A050T5S0001XUMA1?

TLE4973A050T5S0001XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4973A050T5S0001XUMA1 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 TLE4973A050T5S0001XUMA1?

For technical support, including TLE4973A050T5S0001XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4973A050T5S0001XUMA1 requirements.

6.How does Aetrix verify that TLE4973A050T5S0001XUMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4973A050T5S0001XUMA1 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 TLE4973A050T5S0001XUMA1 meets industry standards.

7.What is the process for return or replacement of TLE4973A050T5S0001XUMA1?

All TLE4973A050T5S0001XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4973A050T5S0001XUMA1, 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 TLE4973A050T5S0001XUMA1 part is unused and in its original packaging.

Return procedure for TLE4973A050T5S0001XUMA1:

1.Submit a request within 90 days.

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

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