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Home > Products > Sensors, Transducers > Current Sensors

Infineon Technologies TLE4973R075T5S0010XUMA1

Name: TLE4973R075T5S0010XUMA1
Brand: Infineon Technologies
SKU: TLE4973R075T5S0010XUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4973R075T5S0010XUMA1

Manufacturer:: Infineon Technologies

Category:: Current Sensors

Package:: 8-PowerTDFN

Datasheet:: TLE4973R075T5S0010XUMA1.pdf

Description:: SPEED & CURRENT SENSORS

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Product details

Overview

TLE4973R075T5S0010XUMA1 from Infineon is a high-accuracy, coreless, galvanically isolated current sensor IC for internal current rail sensing in automotive and industrial power systems. It delivers ±82 A full-scale DC/AC measurement 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 TLE4973R075T5S0010XUMA1 datasheet, TLE4973R075T5S0010XUMA1 pinout, TLE4973R075T5S0010XUMA1 application, or TLE4973R075T5S0010XUMA1 equivalent, key selection criteria include its differential Hall sensing architecture, EEPROM-programmable OCD threshold, DCDI one-wire diagnostic interface, and UL 1577-certified 1150 V_VIORM isolation.

Technical Context

The device employs a dual-differential Hall plate architecture to eliminate saturation and hysteresis, enabling linear ±82 A sensing across -40 °C to +125 °C. Its integrated current rail (220 µΩ typical) couples primary current directly to the magnetic field sensing element without external cores or concentrators.

Functional safety is implemented via ISO 26262-compliant Safety Element out of Context (SEooC) architecture supporting ASIL B requirements. The Digital Control Diagnostic Interface (DCDI) provides UART-based read/write access to internal registers, temperature, OCD status, and EEPROM calibration data - configurable in-system with auto-addressing for up to 8 slaves.

Key Specifications

Parameter	Value and Actual Design Meaning
Full-Scale Range	±82 A - Linear sensing range optimized for high-current traction inverters and OBCs without core saturation.
Supply Voltage	4.5–5.5 V - Ratiometric operation ensures analog output scaling directly with VDD stability.
Quiescent Output	VDD/2 - Centered single-ended AOUT simplifies ADC interfacing and reduces dynamic range requirements.
Isolation Rating	1150 V_VIORM - Galvanic functional isolation enables safe monitoring of high-side battery rails in 400 V EV systems.
OCD Response Time	<1.0 µs - Enables fast short-circuit protection in motor drives and DC-DC converters before IGBT/MOSFET damage.
Insertion Resistance	220 µΩ typ. - Minimizes conduction loss & thermal rise in continuous 80 A applications (e.g., 1.76 W at 80 A).
Temperature Stability	<±0.5% FS drift over -40 to +125 °C - Eliminates need for external temperature compensation circuitry.

Pinout & Package

PG-TISON-8-6 surface-mount package (8 mm × 8 mm × 2.3 mm), thermally enhanced with exposed thermal pad. Pin 1 marked by dot; pins 7 (IP−) and 8 (IP+) form the integrated current rail path.

Pin/Terminal	Circuit Role	Design Meaning
1 VDD	Power supply input	5 V nominal supply; powers analog signal chain, Hall plates, and DCDI logic.
2 GND	Reference ground	Analog/digital common return; must be low-impedance connection to minimize offset error.
3 VREF	Unused reference pin	No internal connection; must remain open - floating or tied to GND degrades noise performance.
4 AOUT	Analog output	Ratiometric single-ended voltage (0.5×VDD ± sensitivity × I_IN) for direct MCU ADC sampling.
5 OCD	Open-drain fault output	Active-low OCD signal; requires external pull-up to VDD; asserts within 1 µs of overcurrent event.
6 DCDI	One-wire UART interface	Open-drain bidirectional bus line; supports daisy-chained diagnostics and EEPROM programming.
7 IP−	Negative current terminal	Current-out side of integrated shunt rail; connects to load or low-side switch node.
8 IP+	Positive current terminal	Current-in side of integrated shunt rail; connects to battery or DC-link capacitor.

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	Enables end-of-line gain/offset trimming and OCD threshold configuration without disassembly or reflow.
Stray Field Immunity	≥40 dB suppression of external magnetic fields (e.g., adjacent phase legs in 3-phase inverters) via differential topology.
ASIL B Safety Architecture	Includes internal diagnostics (VDD monitor, OCD self-test, EEPROM CRC) meeting ISO 26262 SEooC requirements.
UL 1577 Certification	Validated 1150 V_VIORM isolation with ≥1200 V partial discharge withstand for long-term reliability in harsh environments.

Applications

On-Board Charger (OBC)

PV Inverter DC-Link Monitoring

Use Scenario: Real-time bidirectional current measurement in 11 kW AC/DC converter stage during charging and vehicle-to-grid (V2G) operation.

IC Role / Device Role / Timing Role: Coreless current sensor providing isolated analog feedback to MCU for PWM control loop and energy metering.

Use Value: 220 µΩ insertion resistance minimizes conduction loss at 80 A RMS, extending thermal margin and reducing heatsink size.

Use Scenario: High-side DC-link current monitoring in string-level PV inverters with 1000 V DC bus and rapid fault clearing requirements.

IC Role / Device Role / Timing Role: Isolated current sensing element feeding both control loop and fast OCD signal to gate driver shutdown logic.

Use Value: Sub-1 µs OCD response enables compliant IEC 62109 fault reaction time without external comparators or delay circuits.

Smart Circuit Breaker

Industrial Motor Drive

Use Scenario: Precision current measurement and overload tripping in DIN-rail mounted smart breakers with digital communication and energy logging.

IC Role / Device Role / Timing Role: Primary current transducer interfaced to ARM Cortex-M7 MCU via AOUT and DCDI for real-time analytics and firmware-configurable trip thresholds.

Use Value: EEPROM-stored calibration eliminates per-unit trim resistors, reducing BOM count and enabling field recalibration after thermal aging.

Use Scenario: Phase current sensing in 7.5 kW servo drives operating in dusty, high-EMI factory environments with strong stray fields from adjacent cables.

IC Role / Device Role / Timing Role: Differential Hall-based current sensor replacing shunt+isolator solutions to improve noise immunity and reduce PCB area.

Use Value: 40 dB stray field rejection allows placement near IGBT modules without shielding, cutting assembly cost and footprint by 35%.

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-80AU-T	80 A FS, 5 V supply, but only 2.5 kV_ISO isolation; no DCDI interface or EEPROM programmability.	Lacks ASIL B support and in-system OCD threshold tuning; limited to non-safety-critical industrial use.	Select when cost-sensitive designs require basic isolation without functional safety or diagnostics.
TLE4972R075T5S0010XUMA1	Same PG-TISON-8-6 package and pinout, but single-ended output only (no differential mode); identical ASIL B qualification and DCDI capability.	Shares same calibration flow and layout compatibility; differs only in internal signal conditioning architecture.	Choose for drop-in replacement where existing TLE4973 layout is constrained but differential output not required.

Compared with ACS724LLCTR-80AU-T, TLE4973R075T5S0010XUMA1 adds ASIL B compliance, 1150 V_VIORM isolation, and in-system programmability - critical for automotive OBCs. Versus TLE4972R075T5S0010XUMA1, it offers higher bandwidth and improved stray field rejection due to enhanced differential Hall architecture.

Availability

TLE4973R075T5S0010XUMA1 is available at Aetrix Electronics and suitable for on-board chargers, PV inverters, and smart circuit breakers requiring stable component supply, AEC-Q100 Grade 1 qualification, and long-term automotive lifecycle support.

Supply support for TLE4973R075T5S0010XUMA1 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 manufacturing and R&D infrastructure.

The XENSIV™ TLE4973 product line targets high-accuracy, safety-certified current sensing in electric vehicle powertrain and renewable energy systems - designed for integration into ASIL B–compliant inverters, chargers, and battery management subsystems.

FAQ

What is the maximum primary current the TLE4973R075T5S0010XUMA1 can measure continuously?

The device supports continuous ±82 A DC or RMS current within its linear full-scale range. Absolute maximum ratings allow ±70 A peak at low frequency (<10 Hz) and ±70 A RMS at high frequency (≥10 Hz) under thermal equilibrium conditions on Infineon's reference PCB. Single 250 A peaks (10 µs duration) are permitted up to 10 times over lifetime.

How does the DCDI interface function, and what hardware is required to use it?

DCDI is a one-wire UART interface using open-drain signaling on pin 6 (DCDI), requiring only a single pull-up resistor to VDD. It supports auto-addressing for up to 8 devices on one bus and enables reading temperature, OCD status, safety flags, and EEPROM contents. No external level shifter or dedicated UART peripheral is needed - standard GPIO with bit-banged UART timing suffices.

Can the OCD threshold be adjusted, and what is the minimum detectable overcurrent level?

Yes - the OCD threshold is user-programmable via DCDI and stored in EEPROM. For the TLE4973R075T5S0010XUMA1, default ITHR is ±1.39 × FS = ±114 A, but it can be scaled down to as low as ±10 A. Detection latency remains <1.0 µs regardless of threshold setting, verified across -40 °C to +125 °C ambient.

Is external filtering required on the AOUT pin, and what is the recommended capacitance?

A 6.8 nF capacitor (range 6–8 nF) is required directly at the AOUT pin to ensure stability and meet noise specifications. This includes PCB parasitics - no series resistor should be placed between AOUT and the capacitor. Exceeding 8 nF risks oscillation; values below 6 nF degrade high-frequency noise rejection and may cause output ringing during fast transients.

TLE4973R075T5S0010XUMA1 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

TLE4973R075T5S0010XUMA1 FAQ

1.How can I place an order for TLE4973R075T5S0010XUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4973R075T5S0010XUMA1 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 TLE4973R075T5S0010XUMA1 reliable?

The price and inventory of TLE4973R075T5S0010XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4973R075T5S0010XUMA1 is usually 5 days.

3.What payment methods are accepted for TLE4973R075T5S0010XUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4973R075T5S0010XUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4973R075T5S0010XUMA1?

TLE4973R075T5S0010XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4973R075T5S0010XUMA1 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 TLE4973R075T5S0010XUMA1?

For technical support, including TLE4973R075T5S0010XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4973R075T5S0010XUMA1 requirements.

6.How does Aetrix verify that TLE4973R075T5S0010XUMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4973R075T5S0010XUMA1 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 TLE4973R075T5S0010XUMA1 meets industry standards.

7.What is the process for return or replacement of TLE4973R075T5S0010XUMA1?

All TLE4973R075T5S0010XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4973R075T5S0010XUMA1, 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 TLE4973R075T5S0010XUMA1 part is unused and in its original packaging.

Return procedure for TLE4973R075T5S0010XUMA1:

1.Submit a request within 90 days.

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

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