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Home > Products > Sensors, Transducers > Current Sensors

Infineon Technologies TLI4971A050T5UE0001XUMA1

Name: TLI4971A050T5UE0001XUMA1
Brand: Infineon Technologies
SKU: TLI4971A050T5UE0001XUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLI4971A050T5UE0001XUMA1

Manufacturer:: Infineon Technologies

Category:: Current Sensors

Package:: 8-PowerTDFN

Datasheet:: TLI4971A050T5UE0001XUMA1.pdf

Description:: SENSOR CURRENT HALL 50A 8TISON

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Product details

Overview

TLI4971A050T5UE0001XUMA1 from Infineon is a high-precision coreless magnetic current sensor in PG-TISON-8 package, supporting ±50A DC/AC measurement with semi-differential analog output, 240kHz bandwidth, <1nH parasitic inductance, and galvanic isolation up to 1150V. It integrates a 220µΩ current rail and ships pre-calibrated for industrial inverters and motor drives.

For engineers reviewing the TLI4971A050T5UE0001XUMA1 datasheet, TLI4971A050T5UE0001XUMA1 pinout, TLI4971A050T5UE0001XUMA1 application, or TLI4971A050T5UE0001XUMA1 equivalent, key selection criteria include programmable OCD thresholds (1.25×/0.82× FS), EEPROM-stored configuration, UL-certified isolation (3500V RMS), and differential stray-field immunity in harsh EMI environments.

Technical Context

The device uses two monolithic Hall probes in differential configuration to cancel ambient magnetic interference, enabling operation in high-noise power electronics. Its integrated current rail eliminates core saturation and hysteresis, delivering linear response across −50A to +50A with non-ratiometric sensitivity of 24mV/A (S4 range).

Signal conditioning includes temperature/stress compensation, a high-performance amplifier chain, and dual open-drain OCD outputs with user-programmable deglitch filtering. Output mode (semi-differential default), OCD thresholds, and blanking times are stored in embedded EEPROM and configurable via SICI interface without recalibration.

Key Specifications

Parameter	Value and Actual Design Meaning
Measurement Range	±50 A full-scale; enables accurate bidirectional current sensing in 3-phase inverter legs and battery protection circuits.
Sensitivity	24 mV/A (S4 range); provides 1.2 V output swing at full scale, compatible with 3.3 V ADC inputs without gain staging.
Bandwidth	240 kHz; supports real-time current control loops in SiC/GaN-based fast-switching inverters up to 100 kHz PWM.
Insertion Resistance	220 µΩ typical; dissipates only 550 mW at 50 A RMS, minimizing thermal stress and PCB copper requirements.
Parasitic Inductance	<1 nH; preserves signal integrity during dI/dt transients >100 A/µs, critical for short-circuit detection fidelity.
Isolation Rating	3500 V RMS (UL1577, 60 s); meets reinforced insulation requirements for industrial 400 V AC systems and EV chargers.
OCD Response	Programmable thresholds (OCD1 = 62.5 A, OCD2 = 41 A default); enables independent fast-trip and warning-level overcurrent signaling.

Pinout & Package

TLI4971A050T5UE0001XUMA1 is housed in an 8-pin PG-TISON-8 surface-mount package (8 mm × 8 mm × 2.3 mm), optimized for high-current PCB routing and thermal dissipation via exposed pad soldered to ground plane.

Pin/Terminal	Circuit Role	Design Meaning
1 (VDD)	Supply input	3.3 V nominal supply; powers internal analog/digital circuitry and Hall sensors; requires 220 nF decoupling.
2 (GND)	Ground reference	Common return for supply, analog output, and OCD logic; must be low-impedance connection to minimize noise coupling.
3 (VREF)	Reference voltage terminal	In semi-differential mode: outputs internal 1.65 V quiescent reference; in single-ended mode: accepts external reference input.
4 (AOUT)	Analog output	Single-ended current-proportional voltage (0–3.3 V); delivers 24 mV/A signal with ±50 A input range.
5 (OCD1)	Over-current detection 1	Open-drain output active-low; triggers at 1.25× FS (62.5 A); configurable blanking time prevents false trips on switching spikes.
6 (OCD2)	Over-current detection 2	Open-drain output active-low; triggers at 0.82× FS (41 A); enables tiered fault response (warning + shutdown).
7 (IP−)	Negative current terminal	Current-out path of integrated 220 µΩ shunt rail; connects to load side of power stage; defines current direction convention.
8 (IP+)	Positive current terminal	Current-in path of integrated shunt rail; connects to DC bus or phase leg high-side; completes primary conduction path.

Key Features

Feature	Design Value
Coreless magnetic sensing	Eliminates saturation, hysteresis, and temperature drift inherent in current transformers and Hall-effect cores-enabling stable ±50 A measurement over −40°C to +105°C.
Differential Hall architecture	Two matched Hall plates reject >95% of uniform external magnetic fields (e.g., adjacent phase legs), ensuring accuracy in dense power modules.
Pre-calibrated EEPROM configuration	Ships with factory-set OCD thresholds, semi-differential mode, and 1.65 V VREF-no end-of-line calibration required, reducing production test time and cost.
Programmable OCD logic	Independent thresholds and deglitch filters per OCD channel allow flexible fault management: e.g., OCD1 for immediate IGBT desaturation shutdown, OCD2 for soft-start current limiting.
Galvanic functional isolation	1150 V working voltage with 3500 V RMS UL certification enables direct integration into 400 V AC mains-connected systems without external isolation barriers.

Applications

Industrial Motor Drives

PV Inverters

Use Scenario: Real-time phase current feedback in 3-phase IGBT/SiC inverter stages for field-oriented control (FOC) and torque regulation.

IC Role / Device Role / Timing Role: Coreless current sensor providing isolated, high-bandwidth analog feedback with <1 µs latency to MCU ADC.

Use Value: Enables precise current loop bandwidth >10 kHz while rejecting stray fields from adjacent switching phases-reducing torque ripple by up to 30% vs. shunt-based solutions.

Use Scenario: DC-link and AC output current monitoring in string-level solar inverters operating at 1000 V DC input.

IC Role / Device Role / Timing Role: Isolated current measurement node with reinforced insulation and fast OCD for ground-fault and arc-fault detection.

Use Value: Meets IEC 62109 safety requirements with single-component isolation; OCD2 triggers anti-islanding protection within 2 µs of overcurrent event.

Onboard EV Chargers

Battery Management Systems

Use Scenario: Bidirectional AC input and DC output current sensing in 11 kW AC-to-DC OBC modules compliant with ISO 15118.

IC Role / Device Role / Timing Role: Dual-channel current monitor with independent OCD outputs for input overcurrent (OCD1) and output overcurrent/short-circuit (OCD2).

Use Value: Supports 20 kHz PFC and 100 kHz LLC control loops with 240 kHz bandwidth; 220 µΩ insertion loss reduces thermal derating by 40% vs. 500 µΩ shunts.

Use Scenario: Cell-string current monitoring in high-voltage traction battery packs (400–800 V), including charge/discharge balancing and thermal runaway detection.

IC Role / Device Role / Timing Role: Isolated current sensor interfacing directly to battery monitor ICs (e.g., BQ796xx) via analog input with built-in diagnostics.

Use Value: Internal self-diagnostic feature flags open-circuit, short-circuit, and EEPROM corruption-meeting ASIL-B functional safety requirements without external watchdog.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ACS724LLCTR-50AB-T	Integrated Hall IC with 50 A range, 1.2 mΩ resistance, but no EEPROM programming; fixed 400 kHz bandwidth; 2500 V RMS isolation.	Lacks dual OCD outputs and stray-field rejection; requires external reference for ratiometric operation.	Select when cost-sensitive designs prioritize bandwidth over field immunity and require no configuration flexibility.
TMC1638-LA	25 A range, SPI digital output, 100 kHz bandwidth, 1.5 mΩ resistance; no galvanic isolation; requires external isolator for HV systems.	Designed for stepper motor current control; lacks analog output and UL-certified isolation.	Select for closed-loop stepper drivers where digital interface and compact size outweigh isolation needs.

Compared with ACS724LLCTR-50AB-T and TMC1638-LA, TLI4971A050T5UE0001XUMA1 uniquely combines UL-certified 3500 V RMS isolation, differential stray-field immunity, dual programmable OCD outputs, and factory-calibrated EEPROM-all in a single 8×8 mm package-making it optimal for safety-critical industrial inverters requiring zero calibration overhead.

Availability

TLI4971A050T5UE0001XUMA1 is available at Aetrix Electronics and suitable for industrial motor drives, PV inverters, onboard EV chargers, and battery management systems requiring stable component supply, long-term lifecycle support, and certified isolation performance.

Supply support for TLI4971A050T5UE0001XUMA1 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, automotive MCUs, and sensor solutions, with global manufacturing and quality certifications including IATF 16949 and ISO 9001.

This part belongs to Infineon's TLI4971 high-precision coreless current sensor family, engineered specifically for industrial and automotive-grade isolated current measurement where linearity, thermal stability, and magnetic robustness are critical.

FAQ

What is the default output configuration and how is it set?

The TLI4971A050T5UE0001XUMA1 ships pre-configured in semi-differential mode with 1.65 V VREF output and 24 mV/A sensitivity for ±50 A range. This configuration is stored in factory-programmed EEPROM and requires no customer calibration. The mode can be reprogrammed via Serial Inspection and Configuration Interface (SICI) to single-ended or fully-differential operation without hardware changes.

How does the differential Hall sensing suppress external magnetic fields?

Two physically separated, matched Hall plates measure opposing polarities of the same magnetic field generated by the integrated current rail. Uniform external fields induce equal but opposite signals that cancel at the differential amplifier stage, achieving >95% rejection of stray fields from adjacent power components-verified per IEC 61000-4-8 testing.

Can OCD1 and OCD2 be used simultaneously for different trip levels?

Yes-OCD1 and OCD2 are independently configurable open-drain outputs with separate threshold settings (default: 62.5 A and 41 A), blanking times, and deglitch filters. They can be wired-ANDed externally to generate a unified fault signal or routed separately to distinct MCU GPIOs for hierarchical fault handling (e.g., OCD2 for warning interrupt, OCD1 for immediate PWM disable).

What is the thermal performance under continuous 50 A operation?

At 50 A RMS, the 220 µΩ current rail dissipates 550 mW. On a standard 4-layer PCB with 140 µm copper and thermal vias to inner ground planes, junction-to-soldering-point thermal resistance is 0.25 K/W, resulting in ~13.8°C temperature rise above ambient-well within the −40°C to +105°C operating range and below the 130°C absolute maximum junction temperature.

TLI4971A050T5UE0001XUMA1 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:: 50A

Number of Channels:: 1

Output:: Ratiometric, Voltage

Sensitivity:: 24mV/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

TLI4971A050T5UE0001XUMA1 FAQ

1.How can I place an order for TLI4971A050T5UE0001XUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLI4971A050T5UE0001XUMA1 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 TLI4971A050T5UE0001XUMA1 reliable?

The price and inventory of TLI4971A050T5UE0001XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLI4971A050T5UE0001XUMA1 is usually 5 days.

3.What payment methods are accepted for TLI4971A050T5UE0001XUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLI4971A050T5UE0001XUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLI4971A050T5UE0001XUMA1?

TLI4971A050T5UE0001XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLI4971A050T5UE0001XUMA1 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 TLI4971A050T5UE0001XUMA1?

For technical support, including TLI4971A050T5UE0001XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLI4971A050T5UE0001XUMA1 requirements.

6.How does Aetrix verify that TLI4971A050T5UE0001XUMA1 is sourced from the original manufacturer or authorized distributors?

All TLI4971A050T5UE0001XUMA1 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 TLI4971A050T5UE0001XUMA1 meets industry standards.

7.What is the process for return or replacement of TLI4971A050T5UE0001XUMA1?

All TLI4971A050T5UE0001XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLI4971A050T5UE0001XUMA1, 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 TLI4971A050T5UE0001XUMA1 part is unused and in its original packaging.

Return procedure for TLI4971A050T5UE0001XUMA1:

1.Submit a request within 90 days.

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

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