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Home > Products > Sensors, Transducers > Current Sensors

Infineon Technologies TLE4973R120T5US0010XUMA1

Name: TLE4973R120T5US0010XUMA1
Brand: Infineon Technologies
SKU: TLE4973R120T5US0010XUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4973R120T5US0010XUMA1

Manufacturer:: Infineon Technologies

Category:: Current Sensors

Package:: 8-PowerTDFN

Datasheet:: TLE4973R120T5US0010XUMA1.pdf

Description:: SPEED & CURRENT SENSORS

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Product details

Overview

TLE4973R120T5US0010XUMA1 from Infineon Technologies is a high-accuracy, coreless magnetic current sensor for internal current rail sensing in automotive and industrial power systems. It delivers ±132 A full-scale DC/AC measurement with ratiometric 5 V single-ended analog output, ISO 26262 ASIL B Safety Element out of Context qualification, and integrated 220 µΩ current rail. Used in on-board chargers and PV inverters for precise real-time current monitoring.

For engineers reviewing the TLE4973R120T5US0010XUMA1 datasheet, TLE4973R120T5US0010XUMA1 pinout, TLE4973R120T5US0010XUMA1 application, or TLE4973R120T5US0010XUMA1 equivalent, key selection criteria include its differential Hall sensing architecture, 1.0 µs over-current detection latency, galvanic isolation up to 1150 V_VIORM, and in-system EEPROM programmability via DCDI interface.

Technical Context

The device employs a differential Hall plate pair measuring magnetic flux generated by current through its monolithic integrated copper rail-eliminating saturation and hysteresis inherent in open-loop flux-concentrating sensors. Its signal path includes temperature- and stress-compensated amplification, enabling stable offset and sensitivity across -40 °C to +125 °C ambient.

Functional safety is implemented via dedicated OCD output (open-drain, <1.0 µs response) and Digital Control Diagnostic Interface (DCDI), a one-wire UART supporting auto-addressing for up to 8 slaves, temperature readout, safety status reporting, and EEPROM read/write for end-of-line calibration and threshold configuration.

Key Specifications

Parameter	Value and Actual Design Meaning
Full Scale Range	±132 A - linear sensing range suitable for high-current traction inverters and OBC primary-side monitoring
Supply Voltage	4.5–5.5 V - ratiometric operation ensures analog output scaling directly with VDD stability
Output Type	Single-ended analog (AOUT), V_OQ = VDD/2 - enables direct ADC interfacing without level-shifting
Over-Current Detection	Configurable threshold, max detection time <1.0 µs - supports fast fault shutdown in motor drives
Isolation Rating	1150 V_VIORM, partial discharge ≥1200 V - meets reinforced insulation requirements per UL 1577
Insertion Resistance	Typ. 220 µΩ - minimizes conduction loss (<29 mW at 100 A RMS) in high-efficiency power stages
Safety Certification	ISO 26262 SEooC up to ASIL B - enables integration into automotive safety architectures without additional hardware decomposition

Pinout & Package

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

Pin/Terminal	Circuit Role	Design Meaning
1 VDD	Primary supply input	5 V nominal supply; powers analog and digital blocks; requires local 100 nF decoupling
2 GND	Analog/digital ground reference	Common return for VDD, AOUT, OCD, and DCDI; must be low-impedance connection to PCB ground plane
3 VREF	Reference voltage input	No-connect pin; must remain floating per datasheet - not used in standard configuration
4 AOUT	Analog current-sense output	Ratiometric single-ended voltage (0.5×VDD ± sensitivity × I_IN); 6–8 nF capacitive load limit
5 OCD	Over-current detection output	Open-drain active-low signal; requires external pull-up; asserts within <1.0 µs of threshold violation
6 DCDI	Digital control/diagnostic interface	One-wire UART I/O (open-drain); supports auto-addressing, EEPROM access, and safety status readout
7 IP−	Negative current terminal	Current-out terminal of integrated copper rail; connects to load side of monitored branch
8 IP+	Positive current terminal	Current-in terminal of integrated copper rail; connects to source side (e.g., inverter leg or busbar)

Key Features

Feature	Design Value
Differential Hall sensing	Eliminates magnetic stray field interference - enables reliable operation in dense power modules with adjacent switching legs
In-system EEPROM programming	Supports end-of-line calibration and OCD threshold tuning without disassembly - reduces test time and enables field updates
Galvanic functional isolation	1150 V_VIORM rating with ≥1200 V partial discharge withstand - satisfies reinforced insulation for 400 V–800 V battery systems
Ultra-low insertion loss	220 µΩ typical rail resistance - limits self-heating and power dissipation below 30 mW at 100 A RMS
ASIL B SEooC compliance	Pre-certified safety element - reduces FMEDA effort and accelerates ISO 26262 system-level certification for motor control and charging applications

Applications

On-Board Charger (OBC)

PV Inverter DC-Link Monitoring

Use Scenario: Real-time bidirectional current measurement on AC input and DC output stages of 11 kW OBC units.

IC Role / Device Role / Timing Role: Coreless current sensor providing isolated, high-bandwidth analog feedback for PFC and DC-DC controller loops.

Use Value: Enables precise energy metering and fast over-current protection (<1 µs) during grid fault conditions without magnetic core saturation.

Use Scenario: High-side DC-link current sensing in string inverters handling up to 1000 V DC bus voltages.

IC Role / Device Role / Timing Role: Galvanically isolated current monitor interfaced to MCU ADC for MPPT and anti-islanding protection logic.

Use Value: 1150 V_VIORM isolation and ±132 A range support safe, accurate monitoring under transient overvoltage and high dI/dt conditions.

Industrial Motor Drive

Smart Circuit Breaker

Use Scenario: Phase current sensing in 3-phase IGBT/SiC inverter stacks for HVAC compressors and pumps.

IC Role / Device Role / Timing Role: Embedded current rail sensor delivering low-latency analog output and independent OCD signal to gate driver IC.

Use Value: Integrated 220 µΩ rail eliminates external shunt placement issues; sub-microsecond OCD enables hardware-level short-circuit shutdown.

Use Scenario: Load current monitoring and trip decision in DIN-rail mounted smart breakers with communication and energy logging.

IC Role / Device Role / Timing Role: Primary current transducer feeding both protection logic (via OCD) and energy metering (via AOUT).

Use Value: Single-device dual functionality reduces BOM count; EEPROM programmability allows per-unit threshold calibration for trip consistency across production lots.

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-130AB-T	Lower isolation (500 V_RMS), no DCDI interface, fixed OCD threshold, no EEPROM	Lacks ASIL B SEooC certification and in-system programmability; suited for non-safety-critical industrial use	Select when cost sensitivity outweighs safety certification and configurability needs
TMR2003D	Tunnel magnetoresistance (TMR) sensing, higher sensitivity (20 mV/A), but no integrated current rail or OCD output	Requires external shunt resistor; no galvanic isolation rating; limited to low-voltage auxiliary monitoring	Select only for ultra-high-precision low-current (<20 A) sensing where rail integration is unnecessary

Compared with ACS724LLCTR-130AB-T and TMR2003D, TLE4973R120T5US0010XUMA1 uniquely combines automotive-grade safety certification, integrated low-loss current rail, sub-microsecond OCD, and field-programmable parameters - making it the only option qualified for ASIL B OBC and inverter applications requiring functional isolation and system-level diagnostics.

Availability

TLE4973R120T5US0010XUMA1 is available at Aetrix Electronics and suitable for on-board chargers, photovoltaic inverters, and industrial motor drives requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for automotive Tier-1 programs.

Supply support for TLE4973R120T5US0010XUMA1 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 R&D and manufacturing infrastructure.

The XENSIV™ current sensor product line targets high-accuracy, isolated current measurement in electric vehicle powertrains, renewable energy systems, and industrial automation - emphasizing safety, reliability, and integration efficiency.

FAQ

What is the maximum continuous primary current the TLE4973R120T5US0010XUMA1 can measure?

The device supports ±132 A full-scale linear range per datasheet Table 1, with absolute maximum primary current ratings of ±70 A RMS (high-frequency) and ±70 A peak (low-frequency). Continuous operation at ±132 A is not specified; sustained current must remain within thermal limits defined by PCB layout and ambient conditions, with junction temperature capped at 130 °C.

Does the TLE4973R120T5US0010XUMA1 require external components for basic operation?

Yes - a 100 nF ceramic capacitor between VDD and GND is mandatory for supply decoupling. The OCD and DCDI pins require external pull-up resistors (to VDD), and AOUT must drive ≤8 nF total capacitance. VREF must remain unconnected. No external shunt, amplifier, or isolation barrier is needed due to integrated rail and galvanic isolation.

How is over-current detection configured and what is its electrical behavior?

OCD threshold is user-configurable via DCDI interface using OCDGL_MUL and ITHR registers; default is ±1.39×FS (±183.5 A). The OCD pin is an open-drain output that pulls low within <1.0 µs of threshold violation and remains asserted until cleared by DCDI command or power cycle. External pull-up is required for logic-level compatibility.

Is the TLE4973R120T5US0010XUMA1 compatible with AEC-Q100 Grade 0 or Grade 1?

It is qualified per AEC-Q100 Grade 1, with operating ambient temperature range of -40 °C to +125 °C (measured at solder point). Grade 0 (-40 °C to +150 °C) is not supported; junction temperature must not exceed 130 °C under any condition, limiting use in extreme under-hood environments without derating.

TLE4973R120T5US0010XUMA1 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

TLE4973R120T5US0010XUMA1 FAQ

1.How can I place an order for TLE4973R120T5US0010XUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4973R120T5US0010XUMA1 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 TLE4973R120T5US0010XUMA1 reliable?

The price and inventory of TLE4973R120T5US0010XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4973R120T5US0010XUMA1 is usually 5 days.

3.What payment methods are accepted for TLE4973R120T5US0010XUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4973R120T5US0010XUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4973R120T5US0010XUMA1?

TLE4973R120T5US0010XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4973R120T5US0010XUMA1 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 TLE4973R120T5US0010XUMA1?

For technical support, including TLE4973R120T5US0010XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4973R120T5US0010XUMA1 requirements.

6.How does Aetrix verify that TLE4973R120T5US0010XUMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4973R120T5US0010XUMA1 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 TLE4973R120T5US0010XUMA1 meets industry standards.

7.What is the process for return or replacement of TLE4973R120T5US0010XUMA1?

All TLE4973R120T5US0010XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4973R120T5US0010XUMA1, 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 TLE4973R120T5US0010XUMA1 part is unused and in its original packaging.

Return procedure for TLE4973R120T5US0010XUMA1:

1.Submit a request within 90 days.

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

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