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Home > Products > Sensors, Transducers > Current Sensors

Infineon Technologies TLE4971A025T5UE0001XUMA1

Name: TLE4971A025T5UE0001XUMA1
Brand: Infineon Technologies
SKU: TLE4971A025T5UE0001XUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4971A025T5UE0001XUMA1

Manufacturer:: Infineon Technologies

Category:: Current Sensors

Package:: 8-PowerTDFN

Datasheet:: TLE4971A025T5UE0001XUMA1.pdf

Description:: SPEED & CURRENT SENSORS

Quantity:: RFQ Add To RFQ list

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Inventory:1,150

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Product details

Overview

TLE4971A025T5UE0001XUMA1 from Infineon is a high-precision, coreless magnetic current sensor in PG-TISON-8-6 package, delivering ±25A full-scale DC/AC measurement with 48 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 dual open-drain over-current detection outputs for automotive On-Board Chargers and motor drives.

For engineers reviewing the TLE4971A025T5UE0001XUMA1 datasheet, TLE4971A025T5UE0001XUMA1 pinout, TLE4971A025T5UE0001XUMA1 application, or TLE4971A025T5UE0001XUMA1 equivalent, this page provides verified technical context, calibrated performance parameters, functional isolation (1150 V_peak VIORM), EEPROM-programmable OCD thresholds, and lead-tip inspection capability for solder-joint validation.

Technical Context

The TLE4971A025T5UE0001XUMA1 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 bidirectional current sensing across -40°C to +125°C ambient.

It operates in semi-differential mode by default, providing AOUT as single-ended output and VREF as internal reference output (1.65 V), with programmable OCD1/OCD2 thresholds (1.25× and 0.82× full scale) and zero deglitch filter time - enabling sub-microsecond over-current response without external components.

Key Specifications

Parameter	Value and Actual Design Meaning
Full Scale Range	±25 A - supports precise low-current motor phase monitoring and battery charge/discharge control
Sensitivity	48 mV/A - enables 1.2 V full-scale analog swing on AOUT with 25 A input, compatible with 3.3 V ADCs
Bandwidth	210 kHz - captures fast transients in inverter switching (e.g., 20 kHz PWM with 10× harmonic margin)
Total Error (25°C)	±1.5 % - includes linearity, offset, and sensitivity error; no end-of-line calibration required
Galvanic Isolation	1150 V_peak VIORM - meets reinforced insulation requirements for ASIL-B automotive systems
Current Rail Resistance	220 µΩ - dissipates only 138 mW at 25 A RMS, minimizing thermal impact in compact OBC layouts
Parasitic Inductance	<1 nH - preserves high-frequency fidelity and avoids resonance with PCB trace inductance

Pinout & Package

Package: PG-TISON-8-6, 8 mm × 8 mm SMD, exposed thermal pad, lead tip inspection (LTI) compatible.

Pin/Terminal	Circuit Role	Design Meaning
1 VDD	Supply input	3.3 V nominal supply; internal LDO regulates analog/digital domains; requires 220 nF decoupling
2 GND	Ground reference	Common return for supply, analog output, and OCD signals; connects to thermal pad for heat dissipation
3 VREF	Reference output	Provides stable 1.65 V internal reference in semi-differential mode; not an input in default configuration
4 AOUT	Analog signal output	Single-ended voltage output proportional to IPN; drives up to ±2 mA; 6.8 nF max load capacitance
5 OCD1	Over-current detection 1	Open-drain, active-low output; triggers at 1.25× FS (31.25 A); no external pull-up required for wired-AND
6 OCD2	Over-current detection 2	Open-drain, active-low output; triggers at 0.82× FS (20.5 A); independent blanking and filtering
7 IP−	Negative current terminal	Current-out pin of integrated 220 µΩ rail; must be routed with low-inductance PCB copper
8 IP+	Positive current terminal	Current-in pin; direction defines sign convention: IPN > 0 when current flows IP+ → IP−

Key Features

Feature	Design Value
Coreless magnetic sensing	Eliminates saturation, hysteresis, and temperature drift from ferromagnetic cores - ensures stable gain over lifetime
Embedded EEPROM configuration	Stores OCD thresholds, blanking times, and output modes; programmable via SICI interface without external components
Differential stray-field suppression	50 dB rejection of homogeneous 20 mT fields up to 150 kHz - enables reliable operation near inverters and transformers
Lead Tip Inspection (LTI)	Optical solder-joint verification enabled by exposed lead geometry - reduces post-reflow QA time in automotive manufacturing
Functional self-diagnostics	Monitors Hall plate integrity, EEPROM validity, and supply voltage; asserts fault flag via OCD pins during failure

Applications

On-Board Charger (OBC)

Motor Inverter Phase Monitoring

Use Scenario: Real-time AC input current sensing in bi-directional OBCs for grid-to-vehicle and vehicle-to-grid energy transfer.

IC Role / Device Role / Timing Role: Coreless current sensor measuring primary-side AC current with 210 kHz bandwidth and galvanic isolation.

Use Value: Enables precise power regulation and fault detection without core saturation at 50/60 Hz and harmonics up to 10 kHz.

Use Scenario: Low-side phase current measurement in 3-phase traction inverters for e-scooters and e-bikes.

IC Role / Device Role / Timing Role: High-bandwidth analog current feedback for FOC (Field-Oriented Control) with <1 µs OCD response.

Use Value: Supports 20 kHz PWM switching with minimal phase lag and immunity to stray fields from adjacent phases.

Battery Management System (BMS)

Industrial Servo Drive Protection

Use Scenario: Bidirectional DC current monitoring in 400 V battery packs for charge/discharge balancing and SOH estimation.

IC Role / Device Role / Timing Role: ±25 A coreless sensor with 48 mV/A sensitivity and ±1.5% total error, referenced to 1.65 V.

Use Value: Delivers sub-amp resolution at full scale while maintaining ASIL-B compliance and 1150 V_peak isolation.

Use Scenario: Fast over-current protection in servo amplifiers driving PMSM motors under dynamic load conditions.

IC Role / Device Role / Timing Role: Dual-threshold OCD outputs (31.25 A and 20.5 A) with zero deglitch delay for immediate IGBT shutdown.

Use Value: Prevents destructive shoot-through events without compromising measurement accuracy during normal commutation.

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, 100 mV/A sensitivity, 120 kHz bandwidth, no EEPROM, no dual OCD outputs	Lacks configurable over-current thresholds and LTI; requires external calibration	Select when cost sensitivity outweighs diagnostic depth and automotive qualification needs
TMCS1108A4U	±25 A FS, 400 mV/A sensitivity, 800 kHz bandwidth, ratiometric output, no integrated current rail	Requires external shunt; higher sensitivity but lower isolation (800 V_peak) and no LTI support	Select for ultra-high-speed sampling where external shunt layout is acceptable and VIORM ≥ 1150 V is not mandated

Compared with ACS724LLCTR-20AU-T and TMCS1108A4U, the TLE4971A025T5UE0001XUMA1 uniquely combines automotive-grade isolation, factory-calibrated accuracy, dual independent OCD outputs, and LTI-ready packaging - making it optimal for ASIL-B OBC and inverter designs requiring zero calibration and production traceability.

Availability

TLE4971A025T5UE0001XUMA1 is available at Aetrix Electronics and suitable for On-Board Chargers, motor inverters, and battery management systems requiring stable component supply, long-term lifecycle support, and ASIL-B-compliant current sensing.

Supply support for TLE4971A025T5UE0001XUMA1 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 ICs, and sensor solutions, with global R&D and manufacturing infrastructure.

The TLE4971 product line delivers high-precision, coreless current sensing for ASIL-B automotive systems - designed specifically for OBC, traction inverter, and charging infrastructure where reliability, isolation, and diagnostic coverage are critical.

FAQ

What output mode is pre-configured in TLE4971A025T5UE0001XUMA1?

The device ships pre-configured in semi-differential mode: VREF functions as a 1.65 V reference output, and AOUT delivers a single-ended analog signal proportional to current. This mode eliminates need for external reference sources while supporting bidirectional sensing and noise rejection through differential measurement topology.

Does TLE4971A025T5UE0001XUMA1 require external calibration after soldering?

No. The device is shipped fully calibrated from Infineon's production line, with all sensitivity, offset, and temperature coefficients trimmed and stored in EEPROM. No end-of-line calibration is needed - reducing test time and ensuring consistent performance across automotive production batches.

How does the dual OCD output improve system safety in motor drives?

OCD1 (31.25 A) and OCD2 (20.5 A) provide tiered over-current detection: OCD2 triggers early warning for transient overload, while OCD1 initiates immediate shutdown. Both are open-drain and can be wire-ANDed to a single MCU interrupt, enabling layered fault handling without additional logic circuitry.

Can TLE4971A025T5UE0001XUMA1 measure DC current accurately over its full temperature range?

Yes. Total error remains within ±2.3% from −40°C to +125°C ambient, including sensitivity drift, offset shift, and linearity deviation. This is achieved via on-chip temperature compensation and differential Hall architecture - validated per ISO 26262 for ASIL-B functional safety applications.

TLE4971A025T5UE0001XUMA1 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:: Current Sensor

Current - Sensing:: 25A

Number of Channels:: 1

Output:: Ratiometric, Voltage

Sensitivity:: 48mV/A

Frequency:: 210kHz

Linearity:: -

Accuracy:: -

Voltage - Supply:: 3.1V ~ 3.5V

Response Time:: 700ns

Current - Supply (Max):: 25mA

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Polarization:: Bidirectional

Mounting Type:: Surface Mount

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

TLE4971A025T5UE0001XUMA1 FAQ

1.How can I place an order for TLE4971A025T5UE0001XUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4971A025T5UE0001XUMA1 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 TLE4971A025T5UE0001XUMA1 reliable?

The price and inventory of TLE4971A025T5UE0001XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4971A025T5UE0001XUMA1 is usually 5 days.

3.What payment methods are accepted for TLE4971A025T5UE0001XUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4971A025T5UE0001XUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4971A025T5UE0001XUMA1?

TLE4971A025T5UE0001XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4971A025T5UE0001XUMA1 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 TLE4971A025T5UE0001XUMA1?

For technical support, including TLE4971A025T5UE0001XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4971A025T5UE0001XUMA1 requirements.

6.How does Aetrix verify that TLE4971A025T5UE0001XUMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4971A025T5UE0001XUMA1 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 TLE4971A025T5UE0001XUMA1 meets industry standards.

7.What is the process for return or replacement of TLE4971A025T5UE0001XUMA1?

All TLE4971A025T5UE0001XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4971A025T5UE0001XUMA1, 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 TLE4971A025T5UE0001XUMA1 part is unused and in its original packaging.

Return procedure for TLE4971A025T5UE0001XUMA1:

1.Submit a request within 90 days.

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

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