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Home > Products > Sensors, Transducers > Current Sensors

Infineon Technologies TLE4971A050T5UE0001XUMA1

Name: TLE4971A050T5UE0001XUMA1
Brand: Infineon Technologies
SKU: TLE4971A050T5UE0001XUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4971A050T5UE0001XUMA1

Manufacturer:: Infineon Technologies

Category:: Current Sensors

Package:: 8-PowerTDFN

Datasheet:: TLE4971A050T5UE0001XUMA1.pdf

Description:: HIGH PRECISION CORELESS CURRENT

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Product details

Overview

TLE4971A050T5UE0001XUMA1 from Infineon is a high-precision, coreless magnetic current sensor in PG-TISON-8-6 package, delivering ±50A full-scale DC/AC sensing with 24 mV/A sensitivity, 210 kHz bandwidth, and <±1.5% total error at 25°C. It integrates a 220 µΩ current rail, supports semi-differential analog output with 1.65 V quiescent voltage, and features two independent open-drain over-current detection outputs for automotive On-Board Chargers and motor drives.

For engineers reviewing the TLE4971A050T5UE0001XUMA1 datasheet, TLE4971A050T5UE0001XUMA1 pinout, TLE4971A050T5UE0001XUMA1 application, or TLE4971A050T5UE0001XUMA1 equivalent, key selection criteria include its galvanic isolation (1150 V_peak VIORM), programmable OCD thresholds via EEPROM, lead tip inspection (LTI) capability, and functional safety documentation per ISO 26262.

Technical Context

The TLE4971A050T5UE0001XUMA1 implements a differential Hall plate architecture with on-chip signal conditioning, temperature compensation, and self-diagnostic logic. Its coreless design eliminates saturation and hysteresis, enabling accurate measurement of fast transient currents up to 210 kHz while suppressing external magnetic fields by ≥50 dB.

All configuration parameters-including OCD1/OCD2 thresholds (1.25×/0.82× FS), blanking times, and output mode (semi-differential default)-are stored in embedded EEPROM and programmed via Serial Inspection and Configuration Interface (SICI). The device operates with 3.3 V supply, draws ≤25 mA, and delivers calibrated output without end-of-line customer calibration.

Key Specifications

Parameter	Value and Actual Design Meaning
Full Scale Range	±50 A - supports bidirectional DC/AC current monitoring in OBC and inverter legs without core saturation
Sensitivity	24 mV/A - enables direct interface with 12-bit ADCs (e.g., 1.2 V full-scale yields ~250 LSB/A resolution)
Bandwidth	210 kHz (−3 dB) - captures switching transients in 20 kHz PWM-driven SiC/GaN inverters
Total Error	±1.5% at 25°C - includes linearity, offset, and sensitivity error; meets ASIL-B functional safety requirements
Isolation Voltage	1150 V_peak VIORM - provides reinforced galvanic isolation between current rail and signal domain per IEC 60747-17
Current Rail Resistance	220 µΩ - dissipates only 550 mW at 50 A RMS, minimizing thermal drift and PCB copper heating
OCD Outputs	Two independent open-drain pins (OCD1/OCD2) - support wired-AND fault signaling and dual-threshold protection (e.g., fast trip + warning)

Pinout & Package

Package: PG-TISON-8-6 (8 mm × 8 mm × 1.9 mm SMD, exposed thermal pad, RoHS-compliant).

Pin/Terminal	Circuit Role	Design Meaning
1 VDD	Supply input	3.3 V nominal power rail; requires 220 nF local decoupling for noise immunity
2 GND	Ground reference	Signal and power ground return; tied to thermal pad for thermal management
3 VREF	Reference output	Provides internal 1.65 V reference in semi-differential mode; not an input
4 AOUT	Analog output	Single-ended output proportional to IPN; 2 mA drive capability supports RC filtering
5 OCD1	Over-current output 1	Open-drain, active-low; triggers at 1.25× FS (62.5 A) with zero deglitch delay
6 OCD2	Over-current output 2	Open-drain, active-low; triggers at 0.82× FS (41 A); independently configurable
7 IP−	Negative current terminal	Current-out path; forms low-inductance (≤1 nH) integrated rail with Pin 8
8 IP+	Positive current terminal	Current-in path; direction defines sign convention (IPN > 0 when flowing Pin 8 → Pin 7)

Key Features

Feature	Design Value
Coreless magnetic sensing	Eliminates hysteresis and saturation, enabling accurate measurement of fast AC transients and DC offsets in wideband motor control
Embedded EEPROM configuration	Stores user-defined OCD thresholds, blanking times, and output modes-no external components required for system-level tuning
Lead Tip Inspection (LTI)	Enables automated optical solder-joint quality verification during SMT assembly without additional test fixtures
Functional safety support	ISO 26262 documentation available; internal self-test covers Hall plate bias, EEPROM integrity, and analog chain continuity
Stray field suppression	≥50 dB rejection of homogeneous magnetic fields up to 20 mT at 150 kHz-critical for under-hood automotive placement near inverters

Applications

On-Board Charger (OBC)

Motor Inverter Control

Use Scenario: Bidirectional AC current measurement in 3-phase PFC and DC-link stages of 11 kW OBC systems.

IC Role / Device Role / Timing Role: Coreless current sensor providing isolated, high-bandwidth feedback for digital current controllers and safety shutdown logic.

Use Value: Enables precise energy metering and real-time overload detection with ±50 A range and 210 kHz bandwidth-meeting WLTP efficiency and ASIL-B compliance.

Use Scenario: Phase-leg current sensing in 400 V traction inverters for e-scooters and light EVs.

IC Role / Device Role / Timing Role: High-speed analog current monitor feeding FOC algorithms and independent OCD signals for IGBT/SiC gate driver disable.

Use Value: 220 µΩ insertion resistance minimizes conduction loss; dual OCD outputs allow tiered protection (e.g., 41 A warning + 62.5 A trip).

Industrial Servo Drive

Energy Storage System (ESS) Monitoring

Use Scenario: High-accuracy DC-link current monitoring in servo amplifiers with 20 kHz PWM switching.

IC Role / Device Role / Timing Role: Isolated current sensor delivering low-noise analog output (260 µA/√Hz) to precision ADCs for torque loop stability.

Use Value: ±1.5% total error and <±230 mA offset drift over −40°C to +125°C ensure repeatable torque control across ambient conditions.

Use Scenario: Battery pack charge/discharge current monitoring in 48 V mild-hybrid and residential ESS applications.

IC Role / Device Role / Timing Role: Galvanically isolated current transducer interfacing with battery management unit (BMU) for SOC estimation and thermal runaway prevention.

Use Value: 1150 V_peak VIORM withstands transient surges in high-voltage battery stacks; LTI ensures reliable solder joint integrity in long-life deployments.

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-50AB-T	50 A range, 40 mV/A sensitivity, 120 kHz bandwidth, no EEPROM programming, no LTI, 800 V_peak isolation	Lacks dual OCD outputs and ISO 26262 documentation; suitable for non-automotive industrial use only	Select if cost-sensitive and functional safety certification is not required
TMCS1100A4QDR	50 A range, 50 mV/V sensitivity, ratiometric output, 400 kHz bandwidth, no integrated current rail, external shunt required	Requires external 220 µΩ shunt resistor and layout optimization; no built-in diagnostics or LTI	Select if higher bandwidth is critical and board space allows discrete shunt integration

Compared with ACS724LLCTR-50AB-T and TMCS1100A4QDR, the TLE4971A050T5UE0001XUMA1 uniquely combines automotive-grade functional safety support, factory-calibrated coreless sensing, dual-programmable OCD outputs, and LTI-reducing BOM count, validation effort, and production test complexity in ASIL-B systems.

Availability

TLE4971A050T5UE0001XUMA1 is available at Aetrix Electronics and suitable for On-Board Chargers, motor inverters, and industrial servo drives requiring stable component supply, long-term lifecycle assurance, and automotive qualification.

Supply support for TLE4971A050T5UE0001XUMA1 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 electronics, and industrial control ICs, with global manufacturing and automotive AEC-Q100 qualification leadership.

The TLE4971 product line delivers high-precision, coreless current sensing for ASIL-B automotive systems-designed specifically for OBC, traction inverters, and battery disconnect units where galvanic isolation, fast over-current response, and zero calibration overhead are mandatory.

FAQ

What is the purpose of the VREF pin on the TLE4971A050T5UE0001XUMA1?

In semi-differential mode-the default configuration for this part-VREF functions as an output pin providing a stable 1.65 V internal reference voltage. It is not an input; using it as such may damage the device. This reference enables single-ended AOUT operation with inherent ratiometric stability and eliminates need for external voltage references or trimming.

Does the TLE4971A050T5UE0001XUMA1 require external calibration after soldering?

No. The TLE4971A050T5UE0001XUMA1 ships fully calibrated from Infineon and requires no end-of-line calibration. Its coreless architecture, on-chip temperature compensation, and factory-trimmed EEPROM parameters ensure ±1.5% total error at 25°C and ±2.3% over −40°C to +125°C without user intervention.

How does the Lead Tip Inspection (LTI) feature work on this sensor?

LTI leverages the symmetric geometry and reflective metal finish of the PG-TISON-8-6 package's exposed current rail terminals (Pins 7 and 8). Automated optical inspection systems detect solder wicking height and meniscus shape at the lead tips-verifying wetting quality and void-free joints without X-ray or electrical testing.

Can the OCD1 and OCD2 outputs be used simultaneously for different trip thresholds?

Yes. OCD1 and OCD2 are independently configurable via EEPROM: OCD1 defaults to 1.25× full scale (62.5 A), OCD2 to 0.82× (41 A). Both are open-drain and active-low, allowing wired-AND connection to a single MCU interrupt pin or separate GPIOs for tiered fault handling-e.g., warning at 41 A, shutdown at 62.5 A.

TLE4971A050T5UE0001XUMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: TLE4971

Package/Case:: 8-PowerTDFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

For Measuring:: AC/DC

Sensor Type:: Current Sensor

Current - Sensing:: 50A

Number of Channels:: 1

Output:: Analog Voltage

Sensitivity:: 24mV/A

Frequency:: DC, 120Hz ~ 210kHz

Linearity:: ±1.7%

Accuracy:: -

Voltage - Supply:: 3.1V ~ 3.5V

Response Time:: 700ns

Current - Supply (Max):: 25mA

Operating Temperature:: -40°C ~ 125°C

Grade:: Automotive

Qualification:: AEC-Q100

Polarization:: Bidirectional

Mounting Type:: Surface Mount

Supplier Device Package:: PG-TISON-8-6

TLE4971A050T5UE0001XUMA1 FAQ

1.How can I place an order for TLE4971A050T5UE0001XUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4971A050T5UE0001XUMA1 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 TLE4971A050T5UE0001XUMA1 reliable?

The price and inventory of TLE4971A050T5UE0001XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4971A050T5UE0001XUMA1 is usually 5 days.

3.What payment methods are accepted for TLE4971A050T5UE0001XUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4971A050T5UE0001XUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4971A050T5UE0001XUMA1?

TLE4971A050T5UE0001XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4971A050T5UE0001XUMA1 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 TLE4971A050T5UE0001XUMA1?

For technical support, including TLE4971A050T5UE0001XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4971A050T5UE0001XUMA1 requirements.

6.How does Aetrix verify that TLE4971A050T5UE0001XUMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4971A050T5UE0001XUMA1 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 TLE4971A050T5UE0001XUMA1 meets industry standards.

7.What is the process for return or replacement of TLE4971A050T5UE0001XUMA1?

All TLE4971A050T5UE0001XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4971A050T5UE0001XUMA1, 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 TLE4971A050T5UE0001XUMA1 part is unused and in its original packaging.

Return procedure for TLE4971A050T5UE0001XUMA1:

1.Submit a request within 90 days.

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

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