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Home > Products > Sensors, Transducers > Current Sensors

Infineon Technologies TLI4971A025T5UE0001XUMA1

Name: TLI4971A025T5UE0001XUMA1
Brand: Infineon Technologies
SKU: TLI4971A025T5UE0001XUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLI4971A025T5UE0001XUMA1

Manufacturer:: Infineon Technologies

Category:: Current Sensors

Package:: 8-PowerTDFN

Datasheet:: TLI4971A025T5UE0001XUMA1.pdf

Description:: SENSOR CURRENT HALL 25A 8TISON

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Product details

Overview

TLI4971A025T5UE0001XUMA1 from Infineon is a high-precision coreless magnetic current sensor with ±25 A full-scale range, 240 kHz bandwidth, 220 µΩ integrated current rail resistance, galvanic functional isolation up to 1150 V, and pre-configured semi-differential analog output. It delivers ultra-low power loss and stray-field immunity for AC/DC current sensing in industrial inverters and motor drives.

For engineers reviewing the TLI4971A025T5UE0001XUMA1 datasheet, TLI4971A025T5UE0001XUMA1 pinout, TLI4971A025T5UE0001XUMA1 application, or TLI4971A025T5UE0001XUMA1 equivalent, this page provides verified technical context, calibrated performance parameters, dual OCD outputs with programmable thresholds, and real-world implementation guidance for fast over-current protection in high-noise environments.

Technical Context

The TLI4971A025T5UE0001XUMA1 uses differential Hall sensing across an integrated copper current rail to eliminate saturation and hysteresis-unlike flux-concentrating open-loop sensors. Its 220 µΩ primary path resistance and <1 nH parasitic inductance support wide-bandgap switching topologies.

It features two independent open-drain OCD outputs with user-programmable thresholds (e.g., 1.25× and 0.82× FS), deglitch filtering, and EEPROM-stored configuration. The analog output operates in semi-differential mode by default, delivering 48 mV/A sensitivity and 1.65 V quiescent voltage referenced to internal regulation.

Key Specifications

Parameter	Value and Actual Design Meaning
Full Scale Range	±25 A - Enables precise DC/AC current measurement for low-to-mid-power inverters and chargers.
Sensitivity	48 mV/A - Delivers 1.2 V full-scale analog output swing (25 A × 48 mV/A) with 1.65 V quiescent offset.
Bandwidth	240 kHz - Supports accurate current capture in SiC/GaN-based 100+ kHz switching converters.
Primary Resistance	220 µΩ - Limits conduction loss to ≤138 mW at 25 A RMS, reducing thermal stress on PCB layout.
Isolation Rating	3500 V_RMS (60 s UL1577), 1150 V functional - Enables safe integration into 400–800 V DC bus systems without external isolation.
OCD Response Time	<1 µs propagation delay - Allows sub-microsecond fault detection before IGBT/MOSFET destruction in short-circuit events.
Operating Temp	−40 °C to +105 °C - Qualified per AEC-Q100 Grade 2, suitable for industrial ambient and under-hood conditions.

Pinout & Package

TLI4971A025T5UE0001XUMA1 is housed in PG-TISON-8 package (8 mm × 8 mm × 2.3 mm, exposed thermal pad), optimized for high-current SMD mounting and thermal dissipation on 2 oz copper PCBs.

Pin/Terminal	Circuit Role	Design Meaning
1 VDD	Supply input	3.3 V nominal supply (3.1–3.5 V operating range); powers internal Hall plates, amplifiers, and EEPROM.
2 GND	Ground reference	Common return for analog and digital circuitry; must be low-impedance connection to minimize noise coupling.
3 VREF	Reference output	Provides internally regulated 1.65 V reference in semi-differential mode; used as analog output offset reference.
4 AOUT	Analog signal output	Single-ended output carrying current-proportional voltage (48 mV/A); drives ±2 mA load with 300 mV saturation headroom.
5 OCD1	Over-current detection 1	Open-drain output active-low; factory-set to trip at 31.25 A (1.25 × 25 A FS); configurable via SICI interface.
6 OCD2	Over-current detection 2	Open-drain output active-low; factory-set to trip at 20.5 A (0.82 × 25 A FS); independently programmable.
7 IP−	Negative current terminal	Current-out terminal of integrated 220 µΩ copper rail; connects to load or low-side switch node.
8 IP+	Positive current terminal	Current-in terminal of integrated rail; connects to DC bus or high-side source; defines current direction convention.

Key Features

Feature	Design Value
Coreless magnetic sensing	Eliminates saturation/hysteresis errors and enables stable linearity across temperature and lifetime.
Differential Hall architecture	Rejects >60 dB of external stray fields-critical for operation near transformers, inductors, or parallel busbars.
Factory-calibrated EEPROM	Delivers ±0.7% total error at 25 °C out-of-box; no end-of-line calibration required for production deployment.
Dual independent OCD outputs	Supports hierarchical protection: fast shutdown (OCD1) and warning-level alert (OCD2) with separate blanking/filter settings.
Semi-differential analog interface	Reduces common-mode noise sensitivity while maintaining single-ended simplicity and 1.65 V ratiometric offset stability.

Applications

Motor Drive Current Monitoring

PV Inverter DC Link Sensing

Use Scenario: Real-time phase current feedback in 3-phase BLDC or PMSM drives using 650 V IGBTs.

IC Role / Device Role / Timing Role: Coreless current sensor providing isolated analog feedback to MCU ADC with 240 kHz bandwidth.

Use Value: Enables field-oriented control (FOC) with <±1% gain error across −40 °C to +105 °C, eliminating current shunt heating drift.

Use Scenario: Bidirectional DC current monitoring in string-level MPPT converters feeding 600–1000 V DC bus.

IC Role / Device Role / Timing Role: High-bandwidth, isolated current transducer interfacing to isolated sigma-delta ADC or DSP.

Use Value: 220 µΩ insertion resistance minimizes power loss (<0.14 W at 25 A), improving system efficiency vs. 1 mΩ shunts.

Onboard EV Charger OCP

Industrial UPS Overload Detection

Use Scenario: Fast over-current protection in 11 kW AC-to-DC onboard chargers with SiC MOSFETs.

IC Role / Device Role / Timing Role: Dual OCD outputs trigger hardware-level gate shutdown within <1 µs of fault onset.

Use Value: OCD1 (31.25 A) initiates immediate IGBT turn-off; OCD2 (20.5 A) triggers soft-start rollback or alarm logging.

Use Scenario: Redundant overload detection in 30 kVA three-phase UPS systems with paralleled IGBT modules.

IC Role / Device Role / Timing Role: Functional-isolated current monitor feeding redundant controller watchdog paths.

Use Value: 3500 V_RMS isolation rating meets IEC 62040-1 safety requirements for Class I equipment without auxiliary isolators.

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-20AU-T	20 A FS, 1.2 mΩ insertion resistance, 100 kHz bandwidth, no EEPROM programming, no dual OCD outputs.	Limited to lower-power applications; lacks configurable deglitching and failsafe redundancy.	Choose when cost sensitivity outweighs bandwidth, isolation, and programmability requirements.
TMR2003D	25 A FS, tunnel magnetoresistance (TMR) sensing, 1.5 mΩ resistance, 1 MHz bandwidth, no functional isolation.	Requires external isolation for HV systems; higher noise floor in EMI-heavy environments.	Prefer where ultra-high bandwidth is critical and board space allows discrete isolation components.

Compared with ACS724LLCTR-20AU-T and TMR2003D, the TLI4971A025T5UE0001XUMA1 uniquely combines functional isolation, dual programmable OCD, 240 kHz bandwidth, and <220 µΩ loss in a single 8×8 mm package-enabling compact, robust, and maintenance-free current sensing in safety-critical industrial power stages.

Availability

TLI4971A025T5UE0001XUMA1 is available at Aetrix Electronics and suitable for electrical drives, PV inverters, and onboard EV chargers requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 qualified performance.

Supply support for TLI4971A025T5UE0001XUMA1 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, sensing, and automotive ICs, with global manufacturing and automotive-grade quality certification.

The TLI4971 series belongs to Infineon's high-precision current sensing product line, engineered specifically for industrial and automotive traction inverters requiring galvanic isolation, zero-drift accuracy, and fast fault response without magnetic cores.

FAQ

What output modes does the TLI4971A025T5UE0001XUMA1 support, and how do they differ?

The device supports semi-differential (default), single-ended, and fully-differential analog output modes. Semi-differential uses internal 1.65 V reference on VREF and single-ended signal on AOUT. Single-ended requires external VREF input. Fully-differential uses both AOUT and VREF as complementary outputs, doubling voltage swing. All modes retain the same 48 mV/A sensitivity and can be reprogrammed via SICI without recalibration.

How is over-current detection configured, and what are the factory defaults?

OCD1 and OCD2 thresholds are stored in EEPROM and factory-set to 31.25 A (1.25× FS) and 20.5 A (0.82× FS), respectively. Each channel includes user-programmable deglitch filter time (0–10 µs) and blanking windows. Configuration is performed via Serial Inspection and Configuration Interface (SICI) using Infineon's programming guide and compatible host controller.

Does the TLI4971A025T5UE0001XUMA1 require external calibration after soldering?

No. The device ships fully calibrated with total error ≤±0.7% at 25 °C and ≤±2.5% over temperature (−40 °C to +105 °C) and lifetime. No end-of-line calibration is needed. Calibration data-including sensitivity, offset, and temperature coefficients-is permanently stored in on-chip EEPROM and applied automatically during operation.

What is the thermal performance of the PG-TISON-8 package under continuous 25 A load?

With 2 oz copper and standard Infineon reference PCB layout, the junction-to-soldering-point thermal resistance is 0.25 K/W. At 25 A RMS, power dissipation is ~138 mW (25² × 220 µΩ), resulting in ≤35 °C junction rise above board temperature-well within the 130 °C max junction limit and supporting reliable operation at full ambient rating.

TLI4971A025T5UE0001XUMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 8-PowerTDFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

For Measuring:: AC/DC

Sensor Type:: Hall Effect, Open Loop

Current - Sensing:: 25A

Number of Channels:: 1

Output:: Ratiometric, Voltage

Sensitivity:: 48mV/A

Frequency:: DC ~ 240kHz

Linearity:: ±2.25%

Accuracy:: -

Voltage - Supply:: 3.1V ~ 3.5V

Response Time:: 250ns

Current - Supply (Max):: 25mA

Operating Temperature:: -40°C ~ 105°C

Grade:: Automotive

Qualification:: AEC-Q100

Polarization:: Unidirectional

Mounting Type:: Surface Mount

Supplier Device Package:: PG-TISON-8-5

TLI4971A025T5UE0001XUMA1 FAQ

1.How can I place an order for TLI4971A025T5UE0001XUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLI4971A025T5UE0001XUMA1 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 TLI4971A025T5UE0001XUMA1 reliable?

The price and inventory of TLI4971A025T5UE0001XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLI4971A025T5UE0001XUMA1 is usually 5 days.

3.What payment methods are accepted for TLI4971A025T5UE0001XUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLI4971A025T5UE0001XUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLI4971A025T5UE0001XUMA1?

TLI4971A025T5UE0001XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLI4971A025T5UE0001XUMA1 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 TLI4971A025T5UE0001XUMA1?

For technical support, including TLI4971A025T5UE0001XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLI4971A025T5UE0001XUMA1 requirements.

6.How does Aetrix verify that TLI4971A025T5UE0001XUMA1 is sourced from the original manufacturer or authorized distributors?

All TLI4971A025T5UE0001XUMA1 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 TLI4971A025T5UE0001XUMA1 meets industry standards.

7.What is the process for return or replacement of TLI4971A025T5UE0001XUMA1?

All TLI4971A025T5UE0001XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLI4971A025T5UE0001XUMA1, 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 TLI4971A025T5UE0001XUMA1 part is unused and in its original packaging.

Return procedure for TLI4971A025T5UE0001XUMA1:

1.Submit a request within 90 days.

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

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