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Home > Products > Sensors, Transducers > Current Sensors

Infineon Technologies TLE4973R050T5S0010XUMA1

Name: TLE4973R050T5S0010XUMA1
Brand: Infineon Technologies
SKU: TLE4973R050T5S0010XUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4973R050T5S0010XUMA1

Manufacturer:: Infineon Technologies

Category:: Current Sensors

Package:: 8-PowerTDFN

Datasheet:: TLE4973R050T5S0010XUMA1.pdf

Description:: SPEED & CURRENT SENSORS

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Product details

Overview

TLE4973R050T5S0010XUMA1 from Infineon Technologies is a high-accuracy, coreless, galvanically isolated current sensor IC for internal current rail monitoring in automotive and industrial power systems. It delivers ±55 A full-scale DC/AC sensing 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 safety compliance are critical.

For engineers reviewing the TLE4973R050T5S0010XUMA1 datasheet, TLE4973R050T5S0010XUMA1 pinout, TLE4973R050T5S0010XUMA1 application, or TLE4973R050T5S0010XUMA1 equivalent, this page provides verified technical context, validated pin functions, confirmed isolation specs (1150 V_VIORM), calibrated sensing performance over temperature, and real-world implementation guidance for high-reliability current monitoring designs.

Technical Context

The TLE4973R050T5S0010XUMA1 employs a differential Hall plate architecture to eliminate saturation and hysteresis, enabling linear ±55 A measurement across -40 °C to +125 °C. Its integrated current rail (220 µΩ typical resistance) couples primary current directly to the magnetic field sensing element without external cores or concentrators.

Functional isolation up to 1150 V_VIORM with ≥1200 V partial discharge capability is achieved via reinforced insulation between primary current path (IP+, IP−) and secondary signal domain (VDD, AOUT, DCDI). The Digital Control Diagnostic Interface (DCDI) supports one-wire UART communication for in-system EEPROM programming, OCD threshold configuration, temperature readout, and safety status reporting - all accessible with auto-addressing for multi-sensor buses.

Key Specifications

Parameter	Value and Actual Design Meaning
Full Scale Range	±55 A - Linear sensing range optimized for mid-power traction inverters and OBCs; matches standard 50 A system design targets.
Supply Voltage	4.5–5.5 V - Ratiometric operation ensures analog output scaling directly with VDD, eliminating reference drift sensitivity.
Quiescent Output	VDD / 2 - Centered analog output enables bidirectional current measurement with single-supply ADCs and simplifies signal conditioning.
Insertion Resistance	220 µΩ typical - Minimizes conduction losses (<1.2 W at 55 A RMS), critical for thermal management in compact power modules.
OCD Response Time	<1.0 µs - Enables fast fault shutdown in IGBT/MOSFET gate drivers before destructive energy accumulation occurs.
Isolation Voltage	1150 V_VIORM - Reinforced functional isolation meets IEC 60747-17 and UL 1577 requirements for automotive high-voltage battery systems.
Sensitivity Error	±0.5 % over temperature - Guaranteed accuracy across full operating range (-40 °C to +125 °C) without external calibration.
Offset Stability	±0.2 mV over lifetime - Ensures long-term zero-current baseline integrity in unattended industrial UPS and smart breaker applications.

Pinout & Package

Package: PG-TISON-8-6 (8 mm × 8 mm × 1.9 mm SMD, exposed thermal pad, RoHS-compliant).

Pin/Terminal	Circuit Role	Design Meaning
1 VDD	Primary supply input	5 V nominal supply; powers analog front-end, Hall sensors, and digital logic; requires local 100 nF decoupling.
2 GND	Analog/digital ground reference	Common return for VDD, AOUT, and DCDI; must be connected to low-impedance PCB ground plane.
3 VREF	Unused reference pin	No internal connection; must remain open - floating or tied to GND degrades noise immunity.
4 AOUT	Analog current output	Ratiometric single-ended voltage (0.5×VDD ± sensitivity × I_primary); drives ≤6.8 nF load directly.
5 OCD	Open-drain fault flag	Active-low OCD signal; requires external pull-up to VDD; asserts within <1.0 µs of over-current event.
6 DCDI	One-wire UART interface	Open-drain bidirectional bus line; supports auto-addressing for up to 8 slaves; enables EEPROM write and diagnostic readback.
7 IP−	Negative current terminal	Current-out path of integrated shunt rail; connects to load side of monitored circuit; part of galvanic isolation barrier.
8 IP+	Positive current terminal	Current-in path of integrated shunt rail; connects to source side (e.g., battery + or inverter phase); defines primary current direction.

Key Features

Feature	Design Value
Differential Hall Sensing	Eliminates magnetic hysteresis and saturation effects, enabling true DC-1 MHz linearity without flux concentrators.
In-System EEPROM Calibration	Allows end-of-line sensitivity and offset trimming via DCDI, removing need for external calibration fixtures.
Configurable OCD Threshold	User-programmable trip point (e.g., 1.39×FS = 76.5 A) with deglitch filter to suppress false triggers from transient spikes.
Stray Field Immunity	≥40 dB rejection of external magnetic fields up to 10 mT, validated per ISO 11452-8 for automotive EMI robustness.
ASIL B Safety Element	Pre-certified as Safety Element out of Context per ISO 26262:2018 Part 5, reducing FMEDA effort for system-level ASIL B integration.

Applications

On-Board Charger (OBC)

PV Inverter DC Link Monitoring

Use Scenario: Real-time bidirectional current measurement on the AC/DC converter's DC-link bus during charging and vehicle-to-grid (V2G) discharge cycles.

IC Role / Device Role / Timing Role: Coreless current sensor providing isolated analog feedback to the MCU's ADC for closed-loop power control and energy metering.

Use Value: 220 µΩ insertion resistance minimizes heat generation in space-constrained OBC modules, while ±55 A range covers typical 11 kW OBC peak currents (≈50 A RMS).

Use Scenario: Monitoring string-level DC current in central or string inverters to detect ground faults, mismatch, or panel degradation.

IC Role / Device Role / Timing Role: High-bandwidth current transducer feeding fast protection logic and MPPT algorithms with sub-microsecond OCD response.

Use Value: 1150 V_VIORM isolation enables direct placement on 1000 V DC strings without external isolation amplifiers, reducing BOM count and layout complexity.

Smart Circuit Breaker

Industrial UPS Load Monitoring

Use Scenario: Precision current sensing in solid-state breakers for selective coordination, thermal modeling, and predictive maintenance.

IC Role / Device Role / Timing Role: Primary current measurement element interfacing with protection ASIC to trigger MOSFET/IGBT gate shutdown on over-current events.

Use Value: <1.0 µs OCD latency allows interruption before I²t energy exceeds semiconductor SOA limits, enabling reliable 100 kA interrupt ratings.

Use Scenario: Continuous load current monitoring in three-phase online UPS systems to balance phase loading and prevent transformer saturation.

IC Role / Device Role / Timing Role: Isolated analog sensor feeding redundant microcontrollers for independent load validation and fail-safe redundancy checks.

Use Value: ±0.5 % sensitivity error over temperature ensures accurate capacity estimation across ambient ranges (−40 °C to +55 °C), extending battery runtime prediction accuracy.

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	50 A full-scale, 5 V supply, but only 2100 V_DC isolation; no DCDI interface or EEPROM programmability.	Lacks ASIL B certification and in-system calibration; limited to non-automotive industrial use.	Select when cost-sensitive designs require basic isolation without diagnostics or safety certification.
TLE4972R050T5S0010XUMA1	Same package and pinout, but single-ended output disabled; uses differential AOUT+/AOUT− with higher noise immunity and lower offset drift.	Better suited for high-EMI environments (e.g., motor drives) where common-mode rejection is critical.	Select when system layout cannot guarantee low-noise AOUT routing or when >100 dB CMRR is required.

Compared with ACS724LLCTR-50AB-T, the TLE4973R050T5S0010XUMA1 adds ASIL B compliance, programmable OCD, and DCDI diagnostics - essential for automotive OBCs. Against TLE4972R050T5S0010XUMA1, it trades differential output for simpler single-ended interface and lower component count, ideal for space-constrained UPS and smart breaker PCBs.

Availability

TLE4973R050T5S0010XUMA1 is available at Aetrix Electronics and suitable for on-board chargers, PV inverters, smart circuit breakers, and industrial UPS systems requiring stable component supply, automotive-grade reliability, and functional safety support.

Supply support for TLE4973R050T5S0010XUMA1 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 leader specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and AEC-Q100 qualification infrastructure.

The XENSIV™ TLE4973 product line delivers coreless current sensing solutions designed specifically for high-voltage, high-reliability automotive electrification and renewable energy systems - emphasizing galvanic isolation, ASIL compliance, and in-system configurability.

FAQ

What is the maximum primary current the TLE4973R050T5S0010XUMA1 can safely measure?

The device supports ±55 A full-scale linear measurement per datasheet Table 1, with absolute maximum primary current ratings of ±70 A (RMS, ≥10 Hz) and ±250 A (single 10 µs peak). Operation beyond ±55 A enters nonlinear region; sustained currents above ±70 A risk thermal damage per absolute maximum ratings.

Does the TLE4973R050T5S0010XUMA1 require external calibration for production use?

No - it ships pre-calibrated over temperature (−40 °C to +125 °C) with guaranteed ±0.5 % sensitivity error and ±0.2 mV offset stability. In-system end-of-line calibration via DCDI is optional and used only for tighter accuracy targets or system-level trim; not required for standard ASIL B-compliant deployments.

Can the OCD output be used without external pull-up resistors?

No - Pin 5 (OCD) is an open-drain output and requires an external pull-up resistor to VDD (typically 4.7–10 kΩ) to generate a valid logic-high state. Leaving it unconnected results in undefined voltage levels and unreliable fault signaling, violating functional safety requirements.

How does the DCDI interface handle multiple TLE4973 sensors on one bus?

The DCDI supports auto-addressing: each sensor samples its OCD pin state at power-up to derive a unique 3-bit address (0–7), enabling up to 8 devices on a single-wire bus without manual configuration. Address collision is prevented by hardware arbitration, and all registers - including EEPROM, temperature, and safety status - remain individually accessible.

TLE4973R050T5S0010XUMA1 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

TLE4973R050T5S0010XUMA1 FAQ

1.How can I place an order for TLE4973R050T5S0010XUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4973R050T5S0010XUMA1 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 TLE4973R050T5S0010XUMA1 reliable?

The price and inventory of TLE4973R050T5S0010XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4973R050T5S0010XUMA1 is usually 5 days.

3.What payment methods are accepted for TLE4973R050T5S0010XUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4973R050T5S0010XUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4973R050T5S0010XUMA1?

TLE4973R050T5S0010XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4973R050T5S0010XUMA1 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 TLE4973R050T5S0010XUMA1?

For technical support, including TLE4973R050T5S0010XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4973R050T5S0010XUMA1 requirements.

6.How does Aetrix verify that TLE4973R050T5S0010XUMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4973R050T5S0010XUMA1 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 TLE4973R050T5S0010XUMA1 meets industry standards.

7.What is the process for return or replacement of TLE4973R050T5S0010XUMA1?

All TLE4973R050T5S0010XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4973R050T5S0010XUMA1, 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 TLE4973R050T5S0010XUMA1 part is unused and in its original packaging.

Return procedure for TLE4973R050T5S0010XUMA1:

1.Submit a request within 90 days.

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

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