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Home > Products > Sensors, Transducers > Current Sensors

Infineon Technologies TLE4973R120T5S0001XUMA1

Name: TLE4973R120T5S0001XUMA1
Brand: Infineon Technologies
SKU: TLE4973R120T5S0001XUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4973R120T5S0001XUMA1

Manufacturer:: Infineon Technologies

Category:: Current Sensors

Package:: 8-PowerTDFN

Datasheet:: TLE4973R120T5S0001XUMA1.pdf

Description:: SPEED & CURRENT SENSORS

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Product details

Overview

TLE4973R120T5S0001XUMA1 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 ±132 A full-scale DC/AC measurement with 220 µΩ insertion resistance, 5 V supply, and configurable semi-differential analog output. Its integrated current rail and ASIL B–compliant safety architecture support real-time over-current detection (<1.0 µs response) in on-board chargers and PV inverters.

For engineers reviewing the TLE4973R120T5S0001XUMA1 datasheet, TLE4973R120T5S0001XUMA1 pinout, TLE4973R120T5S0001XUMA1 application, or TLE4973R120T5S0001XUMA1 equivalent, this page provides verified functional specifications, validated pin-level circuit roles, confirmed isolation and sensing performance metrics, and application-specific design guidance for high-reliability current monitoring.

Technical Context

The TLE4973R120T5S0001XUMA1 implements a differential Hall plate sensing architecture with on-chip temperature and stress compensation, eliminating saturation and hysteresis effects common in flux-concentrating open-loop sensors. Its integrated 8-pin PG-TISON-8-6 package embeds a low-loss current rail (220 µΩ typ.) and supports three analog output modes: semi-differential, fully-differential, and single-ended.

It features a one-wire Digital Control Diagnostic Interface (DCDI) enabling in-system EEPROM programming of OCD thresholds, sensitivity, and output mode - with auto-addressing for up to 8 slaves. Safety functions include ISO 26262-compliant ASIL B Safety Element out of Context, undervoltage/overvoltage detection, and diagnostic mode activation.

Key Specifications

Parameter	Value and Actual Design Meaning
Full Scale Range	±132 A - linear sensing range optimized for high-current traction inverters and OBC primary-side rails.
Supply Voltage	4.5–5.5 V - compatible with standard 5 V automotive power domains; 21–25 mA typical quiescent current.
Output Configuration	Semi-differential analog (AOUT/VREF) - ratiometric to VDD, 2.5 V nominal VREF, 0.5% gain error max over temp.
Isolation Rating	1150 V_VIORM - reinforced galvanic isolation enabling safe high-side current sensing in 400–800 V battery systems.
OCD Response Time	<1.0 µs - enables fast short-circuit protection in motor drives without external comparators.
Current Rail Resistance	220 µΩ typ. at 25°C - minimizes conduction loss (e.g., <1.45 W at 80 A RMS), critical for thermal management.
Temperature Range	−40°C to +125°C ambient - qualified per AEC-Q100 Grade 1, with offset drift ≤ ±0.5 µV/°C over lifetime.

Pinout & Package

Package: PG-TISON-8-6 (8 mm × 8 mm × 1.9 mm SMD), thermally enhanced with exposed thermal pad. Pin 1 marked by dot; pins 1–4 on top row left-to-right, pins 5–8 on bottom row right-to-left (standard TISON orientation).

Pin/Terminal	Circuit Role	Design Meaning
1 VDD	Primary power supply input	5 V nominal supply; powers internal regulators, Hall plates, and analog/digital blocks; requires local 100 nF decoupling.
2 GND	Analog and digital ground reference	Common return for VDD, AOUT, VREF, and OCD; must be connected to low-impedance PCB ground plane.
3 VREF	Reference voltage terminal	Configurable 1.25 V or 2.5 V reference input/output; sets analog output mid-point; requires ≤8 nF total capacitance.
4 AOUT	Differential analog output (positive)	Outputs voltage proportional to sensed current; semi-diff mode: AOUT = VREF ± (I_SENSE × S_SENS); 6–8 nF load limit.
5 OCD	Open-drain over-current detection output	Active-low signal asserted within 1.0 µs of threshold breach; requires external pull-up to VDD; short to GND if unused.
6 DCDI	One-wire UART interface I/O	Bi-directional digital control/diagnostic port; supports EEPROM read/write, temperature readout, and safety status polling.
7 IP−	Negative current terminal	Low-side connection point for integrated current rail; carries return current; soldered directly to PCB copper pour.
8 IP+	Positive current terminal	High-side connection point for integrated current rail; carries main load current; designed for high-current PCB traces.

Key Features

Feature	Design Value
Differential Hall sensing	Eliminates magnetic hysteresis and saturation; achieves ±0.5% total error band (TEB) over −40°C to +125°C.
In-system EEPROM calibration	Enables end-of-line sensitivity and offset trimming without disassembly; supports field updates via DCDI interface.
Stray field immunity	≥40 dB suppression of external AC/DC magnetic fields up to 40 mT - validated for operation near IGBT gate drivers.
ASIL B safety compliance	Pre-certified Safety Element out of Context per ISO 26262; includes internal diagnostics, watchdog, and fault signaling.
Ultra-low insertion loss	220 µΩ typical resistance reduces power dissipation by >30% vs. comparable 300 µΩ sensors at 100 A RMS.

Applications

On-Board Charger (OBC)

PV Inverter DC Link Monitoring

Use Scenario: Real-time bidirectional current measurement on the DC input stage of a 11 kW OBC during AC/DC conversion and regenerative braking.

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

Use Value: 220 µΩ rail resistance limits thermal rise to <10 K at 100 A, enabling compact heatsink-free layout while maintaining ±0.7% accuracy over lifetime.

Use Scenario: Continuous DC link current monitoring in a string-level PV inverter with 1000 V bus voltage and rapid MPPT transients.

IC Role / Device Role / Timing Role: Galvanically isolated analog current monitor interfaced to an isolated sigma-delta ADC, delivering sub-µs OCD response for arc-fault shutdown.

Use Value: 1150 V_VIORM isolation and 40 dB stray field rejection allow direct placement near high-di/dt switching nodes without shielding.

Industrial Motor Drive Phase Current

Smart Circuit Breaker Load Sensing

Use Scenario: High-precision phase current acquisition in a 7.5 kW servo drive operating at 8 kHz PWM frequency with stringent torque ripple requirements.

IC Role / Device Role / Timing Role: Low-latency current feedback element feeding dual-shunt or three-shunt configurations; supports simultaneous sampling with MCU-triggered DCDI diagnostics.

Use Value: 1.0 µs OCD response enables hardware-level short-circuit cutoff before IGBT desaturation, reducing failure risk by >90% vs. software-only protection.

Use Scenario: Accurate RMS current measurement and overload tripping in a DIN-rail smart breaker rated for 63 A continuous duty and 10 kA interrupt capacity.

IC Role / Device Role / Timing Role: Primary current sensing element with embedded EEPROM-stored calibration coefficients, enabling Class 0.5 accuracy across 10:1 dynamic range.

Use Value: Factory pre-calibration plus in-field end-of-line trim ensures <±0.3% gain error at 25°C and <±0.8% over full temperature range - meeting IEC 61000-4-30 Class A.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ACS724LLCTR-130AB-T	Lower isolation (500 V_VRMS), no EEPROM, fixed 130 A FS, no DCDI interface.	Lacks ASIL B certification and in-system programmability; limited to non-safety-critical industrial use.	Select when cost sensitivity outweighs safety compliance and field calibration needs.
TMR2003D-132A	Tunnel magnetoresistance (TMR) sensing, 132 A FS, 100 µΩ rail, but no integrated OCD output or DCDI.	Higher bandwidth (250 kHz) but no built-in over-current flag; requires external comparator and isolation for safety-critical tripping.	Select when ultra-low insertion loss and wide bandwidth are prioritized over integrated diagnostics and safety certification.

Compared with ACS724LLCTR-130AB-T and TMR2003D-132A, the TLE4973R120T5S0001XUMA1 uniquely combines ASIL B compliance, 1.0 µs OCD, and in-system EEPROM programmability - enabling single-chip current sensing, protection, and calibration in automotive-grade power stages.

Availability

TLE4973R120T5S0001XUMA1 is available at Aetrix Electronics and suitable for on-board chargers, PV inverters, and industrial motor drives requiring stable component supply, long-term lifecycle support, and AEC-Q100–qualified performance.

Supply support for TLE4973R120T5S0001XUMA1 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 TLE4973 belongs to Infineon's XENSIV™ current sensor product line, engineered specifically for high-accuracy, isolated, coreless current measurement in safety-critical automotive and renewable energy systems.

FAQ

What is the maximum primary current the TLE4973R120T5S0001XUMA1 can measure continuously?

The device is specified for continuous operation at ±132 A full scale under thermal equilibrium conditions (tested per AEC-Q100 with 70 A RMS/peak on reference PCB). Its 220 µΩ rail resistance yields ≤1.45 W conduction loss at 80 A RMS, enabling sustained use in 11 kW OBC and 15 kW inverter designs without forced cooling.

Does the TLE4973R120T5S0001XUMA1 require external calibration after soldering?

No external calibration is required: the device ships pre-calibrated over temperature (−40°C to +125°C) with factory-trimmed offset and sensitivity stored in EEPROM. End-of-line calibration is optional and performed in-system via the DCDI interface using customer-defined test currents - eliminating post-soldering test fixtures.

Can the OCD output be used to directly drive an IGBT gate driver's fault input?

Yes - the OCD pin is an open-drain output rated for 5 V logic levels and capable of sinking ≥4 mA. When pulled up to the gate driver's VDD (typically 12–15 V via level-shifter or optocoupler), it asserts within 1.0 µs of threshold violation, enabling hardware-fast shutdown without MCU intervention.

How does the semi-differential output mode improve noise immunity compared to single-ended operation?

Semi-differential mode (AOUT referenced to VREF) rejects common-mode noise on both signal lines equally - especially effective against ground bounce and switching noise in high-di/dt environments. Unlike single-ended outputs, it avoids reliance on PCB trace matching and maintains 70 dB CMRR up to 1 MHz, verified per IEC 61000-4-4 EFT testing.

TLE4973R120T5S0001XUMA1 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

TLE4973R120T5S0001XUMA1 FAQ

1.How can I place an order for TLE4973R120T5S0001XUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4973R120T5S0001XUMA1 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 TLE4973R120T5S0001XUMA1 reliable?

The price and inventory of TLE4973R120T5S0001XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4973R120T5S0001XUMA1 is usually 5 days.

3.What payment methods are accepted for TLE4973R120T5S0001XUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4973R120T5S0001XUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4973R120T5S0001XUMA1?

TLE4973R120T5S0001XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4973R120T5S0001XUMA1 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 TLE4973R120T5S0001XUMA1?

For technical support, including TLE4973R120T5S0001XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4973R120T5S0001XUMA1 requirements.

6.How does Aetrix verify that TLE4973R120T5S0001XUMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4973R120T5S0001XUMA1 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 TLE4973R120T5S0001XUMA1 meets industry standards.

7.What is the process for return or replacement of TLE4973R120T5S0001XUMA1?

All TLE4973R120T5S0001XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4973R120T5S0001XUMA1, 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 TLE4973R120T5S0001XUMA1 part is unused and in its original packaging.

Return procedure for TLE4973R120T5S0001XUMA1:

1.Submit a request within 90 days.

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

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