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Home > Products > Sensors, Transducers > Current Sensors

Infineon Technologies TLE4973A025T5S0001XUMA1

Name: TLE4973A025T5S0001XUMA1
Brand: Infineon Technologies
SKU: TLE4973A025T5S0001XUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4973A025T5S0001XUMA1

Manufacturer:: Infineon Technologies

Category:: Current Sensors

Package:: 8-PowerTDFN

Datasheet:: TLE4973A025T5S0001XUMA1.pdf

Description:: SPEED & CURRENT SENSORS

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Product details

Overview

TLE4973A025T5S0001XUMA1 from Infineon Technologies is a coreless, galvanically isolated magnetic current sensor for high-accuracy DC/AC rail current sensing up to ±27 A full-scale, with 5 V supply, differential analog output, and integrated over-current detection (OCD) with <1.0 µs response. It features 220 µΩ insertion resistance, ASIL B safety compliance per ISO 26262, and operates from −40 °C to +125 °C ambient. Used in on-board chargers and smart circuit breakers where low power loss and stray-field immunity are critical.

For engineers reviewing the TLE4973A025T5S0001XUMA1 datasheet, TLE4973A025T5S0001XUMA1 pinout, TLE4973A025T5S0001XUMA1 application, or TLE4973A025T5S0001XUMA1 equivalent, key selection criteria include its ±27 A full-scale range, ratiometric/non-ratiometric output configuration, 1150 V_VIORM isolation rating, OCD threshold programmability via DCDI interface, and PG-TISON-8-6 package compatibility with high-density automotive PCB layouts.

Technical Context

The TLE4973A025T5S0001XUMA1 implements a differential Hall plate architecture that eliminates saturation and hysteresis by avoiding flux concentrators. Its integrated current rail enables direct in-line measurement with 220 µΩ typical resistance, while the dual Hall probes provide inherent suppression of external magnetic stray fields.

It integrates a Digital Control Diagnostic Interface (DCDI) - a one-wire UART supporting auto-addressing for up to 8 slaves - enabling in-system EEPROM programming of OCD thresholds, sensitivity, output mode (semi-differential, fully-differential, or single-ended), and ratiometricity. Safety diagnostics include undervoltage/overvoltage detection, temperature readout, and OCD status reporting.

Key Specifications

Parameter	Value and Actual Design Meaning
Full-Scale Range	±27 A - Linear sensing range optimized for medium-power OBC and UPS monitoring with minimal thermal drift.
Supply Voltage	4.5–5.5 V - Compatible with standard automotive 5 V rails; supports stable operation across battery voltage fluctuations.
Isolation Rating	1150 V_VIORM - Enables safe integration into high-side current rails in 400 V EV systems without external isolation barriers.
OCD Response Time	<1.0 µs - Enables fast short-circuit protection in motor drives and inverters before IGBT/MOSFET damage occurs.
Insertion Resistance	220 µΩ typ. - Limits power loss to <150 mW at 27 A, reducing thermal stress and eliminating need for heatsinking.
Output Configuration	Semi-differential or fully-differential - Reduces common-mode noise pickup in noisy inverter environments; supports ratiometric or fixed-V_OQ modes.
Temperature Range	−40 °C to +125 °C - Qualified per AEC-Q100 Grade 1; offset stability maintained across full range for reliable lifetime calibration.

Pinout & Package

Package: PG-TISON-8-6 (8 mm × 8 mm × 1.2 mm SMD, exposed thermal pad). RoHS-compliant, automotive-grade molding compound with creepage/clearance compliant to reinforced insulation requirements.

Pin/Terminal	Circuit Role	Design Meaning
1 VDD	Power supply input	5 V nominal supply; internal LDO powers analog and digital blocks; decoupling capacitor required near pin.
2 GND	Ground reference	Analog/digital ground common point; must be connected to low-impedance PCB ground plane under thermal pad.
3 VREF	Reference voltage terminal	Configurable 1.25 V or 2.5 V input/output; sets output quiescent level; requires 6–8 nF local capacitance.
4 AOUT	Differential analog output	Active-high, rail-to-rail capable output; polarity follows IP+/IP− direction; supports semi-/fully-differential modes.
5 OCD	Open-drain fault indicator	Asserts low on over-current; requires external pull-up; <1.0 µs propagation delay enables real-time protection.
6 DCDI	One-wire UART interface	Bi-directional DCDI bus; auto-addressing enabled; supports EEPROM read/write, temperature, and safety status access.
7 IP−	Negative current terminal	Current-out path; forms low-inductance, low-resistance return path through integrated copper rail.
8 IP+	Positive current terminal	Current-in path; symmetric layout with IP− ensures balanced magnetic field coupling to Hall plates.

Key Features

Feature	Design Value
Differential Hall Sensing	Eliminates hysteresis and saturation errors; achieves ±0.5% total error over temperature and lifetime.
Programmable OCD Threshold	User-configurable via DCDI; default set to ±1.39×FS (±37.5 A); deglitch filter prevents false triggers from transients.
Embedded EEPROM	Stores calibration coefficients, OCD settings, and output mode; programmed in-system without disassembly or reflow.
Galvanic Isolation	1150 V_VIORM reinforced insulation; partial discharge ≥1200 V; enables direct high-voltage rail monitoring without optocouplers.
Stray Field Immunity	≥40 dB rejection of external 50/60 Hz and PWM magnetic fields; validated per IEC 61000-4-8 and -4-9.

Applications

On-Board Charger (OBC)

Smart Circuit Breaker

Use Scenario: Monitoring bidirectional AC/DC converter input current during charging cycles in BEV/PHEV platforms.

IC Role / Device Role / Timing Role: Coreless current sensor measuring primary-side DC link current with galvanic isolation and sub-µs fault response.

Use Value: Enables precise energy metering and fast OCD-triggered shutdown (<1 µs) to protect SiC MOSFETs during ground faults.

Use Scenario: Real-time current monitoring and overload tripping in DIN-rail mounted industrial smart breakers.

IC Role / Device Role / Timing Role: Isolated current sensing element feeding analog signal to MCU ADC and triggering hardware OCD interrupt.

Use Value: Replaces shunt + isolator combo; reduces BOM count by 3 components while improving accuracy and thermal stability.

PV Inverter DC Link

Uninterruptible Power Supply (UPS)

Use Scenario: Measuring DC input current from solar arrays in string inverters operating up to 1000 V DC.

IC Role / Device Role / Timing Role: High-side current monitor with reinforced isolation, interfacing directly to 5 V MCU domain.

Use Value: Eliminates need for external isolated amplifiers; maintains ±0.7% gain error from −40 °C to +125 °C for accurate MPPT control.

Use Scenario: Battery charge/discharge current monitoring in online double-conversion UPS systems with 48 V–540 V DC buses.

IC Role / Device Role / Timing Role: Bidirectional current sensor providing analog feedback to PWM controller and digital fault status to system manager.

Use Value: Supports both charging and inverting modes with same polarity handling logic; EEPROM stores separate calibration for each direction.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ACS724LLCTR-20AU-T	Lower isolation (500 V_RM), no DCDI interface, fixed 20 A FS, no EEPROM programmability.	Limited to non-automotive industrial use; lacks ASIL B qualification and OCD configurability.	Select only for cost-sensitive, non-safety-critical 20 A applications without diagnostic requirements.
TMR2003D	Tunnel magnetoresistive (TMR) sensing; higher bandwidth (250 kHz), but no integrated current rail; requires external conductor.	Requires custom PCB layout for external conductor; no built-in OCD output; not AEC-Q100 qualified.	Choose when ultra-fast transient capture (>100 kHz) is prioritized over integration and automotive compliance.

Compared with ACS724LLCTR-20AU-T and TMR2003D, the TLE4973A025T5S0001XUMA1 uniquely combines ASIL B safety certification, embedded current rail, programmable OCD, and DCDI diagnostics - making it the only option qualified for automotive OBC and inverter current monitoring where functional safety and in-system calibration are mandatory.

Availability

TLE4973A025T5S0001XUMA1 is available at Aetrix Electronics and suitable for on-board chargers, smart circuit breakers, PV inverters, and uninterruptible power supplies requiring stable component supply, long-term automotive lifecycle support, and traceable sourcing.

Supply support for TLE4973A025T5S0001XUMA1 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 ICs, and sensor solutions, with global R&D and manufacturing infrastructure.

The TLE4973 series belongs to Infineon's XENSIV™ high-accuracy current sensor product line, designed specifically for automotive and industrial applications demanding galvanic isolation, functional safety, and in-system programmability in space-constrained layouts.

FAQ

What is the default output mode and quiescent voltage for TLE4973A025T5S0001XUMA1?

The device ships pre-configured in semi-differential output mode with V_OQ = V_DD/2 = 2.5 V (at 5 V supply). This setting is stored in factory-programmed EEPROM and can be modified via the DCDI interface to fully-differential or single-ended modes, and V_OQ adjusted to 1.25 V or 2.5 V depending on VREF configuration.

How is over-current detection triggered, and can the threshold be customized?

OCD triggers when sensed current exceeds ±1.39×FS (±37.5 A for this variant); the threshold is user-programmable via DCDI register writes. The deglitch filter (OCDGL_MUL) can be configured to reject sub-microsecond transients, and the open-drain OCD pin asserts within <1.0 µs of threshold crossing - verified under AEC-Q100 stress conditions.

Does TLE4973A025T5S0001XUMA1 require external components for basic operation?

Yes: a 100 nF ceramic decoupling capacitor on VDD, 6.8 nF capacitors on AOUT and VREF pins, and pull-up resistors on OCD (to VDD) and DCDI (to VDD) are mandatory per datasheet Section 4.2. No external amplifier, isolation barrier, or shunt resistor is needed due to integrated rail and galvanic isolation.

Is the TLE4973A025T5S0001XUMA1 compatible with existing TLE4971 footprints or evaluation boards?

No - although pin-compatible with other TLE4973 variants in the PG-TISON-8-6 package, it is not footprint-compatible with TLE4971 (which uses PG-DSO-8). Evaluation board support requires Infineon's TLE4973-25A-KIT, which provides DCDI USB adapter, GUI software, and calibrated test fixtures for end-of-line programming and validation.

TLE4973A025T5S0001XUMA1 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

TLE4973A025T5S0001XUMA1 FAQ

1.How can I place an order for TLE4973A025T5S0001XUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4973A025T5S0001XUMA1 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 TLE4973A025T5S0001XUMA1 reliable?

The price and inventory of TLE4973A025T5S0001XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4973A025T5S0001XUMA1 is usually 5 days.

3.What payment methods are accepted for TLE4973A025T5S0001XUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4973A025T5S0001XUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4973A025T5S0001XUMA1?

TLE4973A025T5S0001XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4973A025T5S0001XUMA1 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 TLE4973A025T5S0001XUMA1?

For technical support, including TLE4973A025T5S0001XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4973A025T5S0001XUMA1 requirements.

6.How does Aetrix verify that TLE4973A025T5S0001XUMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4973A025T5S0001XUMA1 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 TLE4973A025T5S0001XUMA1 meets industry standards.

7.What is the process for return or replacement of TLE4973A025T5S0001XUMA1?

All TLE4973A025T5S0001XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4973A025T5S0001XUMA1, 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 TLE4973A025T5S0001XUMA1 part is unused and in its original packaging.

Return procedure for TLE4973A025T5S0001XUMA1:

1.Submit a request within 90 days.

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

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