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Home > Products > Sensors, Transducers > Current Sensors

Infineon Technologies TLE4971A025N5UE0001XUMA1

Name: TLE4971A025N5UE0001XUMA1
Brand: Infineon Technologies
SKU: TLE4971A025N5UE0001XUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4971A025N5UE0001XUMA1

Manufacturer:: Infineon Technologies

Category:: Current Sensors

Package:: 8-PowerTDFN

Datasheet:: TLE4971A025N5UE0001XUMA1.pdf

Description:: SPEED & CURRENT SENSORS PG-TISON

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Product details

Overview

TLE4971A025N5UE0001XUMA1 from Infineon is a high-precision, coreless magnetic current sensor in PG-TISON-8-5 package, designed for ±25A DC/AC automotive current sensing with 48 mV/A sensitivity, 210 kHz bandwidth, and galvanic isolation up to 1150 V_peak. It delivers analog output in semi-differential mode with 1.65 V quiescent voltage and integrated EEPROM-programmable over-current detection (OCD1/OCD2) for OBC and motor drive protection.

For engineers reviewing the TLE4971A025N5UE0001XUMA1 datasheet, TLE4971A025N5UE0001XUMA1 pinout, TLE4971A025N5UE0001XUMA1 application, or TLE4971A025N5UE0001XUMA1 equivalent, key selection criteria include its 220 µΩ insertion resistance, <1 nH parasitic inductance, -40°C to +125°C operating range, UL-certified isolation, and on-chip self-diagnostic capability.

Technical Context

The device implements a differential Hall plate architecture with on-chip signal conditioning, enabling stray field suppression >50 dB up to 150 kHz. Its fully calibrated, coreless design eliminates hysteresis and saturation effects inherent in traditional current transformers or shunt-based solutions.

Configuration is stored in embedded EEPROM via Serial Inspection and Configuration Interface (SICI), supporting user-defined OCD thresholds, blanking times, and output modes (semi-differential default). The analog path features ratiometricity control, programmable quiescent voltage options (1.65 V standard), and 260–660 µA/√Hz input-referred noise at full-scale range.

Key Specifications

Parameter	Value and Actual Design Meaning
Full-scale range	±25 A - supports bidirectional current monitoring in compact power stages without external amplification
Sensitivity	48 mV/A - enables direct ADC interfacing with 12-bit resolution at ±25 A range using 3.3 V supply
Bandwidth	210 kHz - captures fast transients in inverter switching (e.g., SiC/GaN gate drivers) without phase lag
Insertion resistance	220 µΩ - limits conduction loss to <14 mW at 25 A RMS, critical for thermal management in sealed modules
Parasitic inductance	<1 nH - preserves signal integrity during dI/dt >100 A/µs, avoiding ringing in high-frequency motor control
Galvanic isolation	1150 V_peak VIORM - meets reinforced insulation requirements per IEC 60747-17 for 400 V battery systems
Operating temperature	-40°C to +125°C - qualified for under-hood automotive environments with solder-point derating

Pinout & Package

Package: PG-TISON-8-5 (8 mm × 8 mm × 1.9 mm, exposed thermal pad, RoHS-compliant).

Pin/Terminal	Circuit Role	Design Meaning
1 VDD	Supply input	3.3 V nominal rail; internal LDO powers analog/digital blocks; requires 220 nF ceramic decoupling
2 GND	Ground reference	Common return for supply, analog output, and OCD logic; tied to thermal pad for thermal dissipation
3 VREF	Reference output	Provides 1.65 V chip-internal reference in semi-differential mode; used as output, not input
4 AOUT	Analog signal output	Single-ended output proportional to IPN; drives ±2 mA load with 150–300 mV saturation margin
5 OCD1	Over-current detection 1	Open-drain, active-low output; threshold = 1.25 × full-scale (31.25 A); deglitched at 0 µs
6 OCD2	Over-current detection 2	Open-drain, active-low output; threshold = 0.82 × full-scale (20.5 A); independent deglitch filter
7 IP−	Negative current terminal	Current-out pin of integrated 220 µΩ rail; connects to load side of monitored branch
8 IP+	Positive current terminal	Current-in pin of integrated rail; connects to source side (e.g., inverter leg, OBC DC link)

Key Features

Feature	Design Value
Coreless magnetic sensing	Eliminates saturation, hysteresis, and temperature drift of ferromagnetic cores-enables stable ±25 A measurement across life cycle
Integrated current rail	Monolithic 220 µΩ copper path reduces PCB layout complexity and eliminates external shunt resistor calibration and thermal drift errors
EEPROM configuration	Stores OCD thresholds, blanking times, and output mode; enables field reprogramming without hardware change or BOM revision
Differential Hall architecture	Provides >50 dB suppression of homogeneous external magnetic fields up to 20 mT-critical for operation near motors or transformers
Self-diagnostic function	On-chip continuity, offset, and gain diagnostics run at power-on and periodically during operation-supports ASIL-B functional safety compliance

Applications

On-Board Charger (OBC)

Motor Inverter Control

Use Scenario: Bidirectional AC/DC current monitoring in 3.3 kW–22 kW OBC topologies with SiC MOSFETs.

IC Role / Device Role / Timing Role: Coreless current sensor measuring primary-side DC link and secondary-side AC phase currents with 210 kHz bandwidth.

Use Value: Enables real-time current limiting and soft-switching optimization while maintaining <1% total error over −40°C to +125°C.

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

IC Role / Device Role / Timing Role: High-bandwidth, isolated current sensing at each inverter leg with dual OCD outputs for fast fault shutdown.

Use Value: Supports <500 ns fault response time via wired-AND OCD signals, protecting IGBTs/MOSFETs before thermal runaway occurs.

Industrial Servo Drives

Battery Management Systems

Use Scenario: Torque and flux current regulation in closed-loop PMSM servo amplifiers with <10 µs current loop update.

IC Role / Device Role / Timing Role: Analog current feedback sensor with semi-differential output interfaced to 16-bit SAR ADCs.

Use Value: Delivers 12-bit ENOB-equivalent accuracy without external gain stages, reducing component count and board area by 30%.

Use Scenario: Cell-string current monitoring in 48 V–800 V modular BMS stacks with distributed isolation barriers.

IC Role / Device Role / Timing Role: UL-certified (E0001XUMA1 suffix), reinforced-isolation current sensor for pack-level DC current measurement.

Use Value: Eliminates need for optocoupler-based isolation in current sense path, improving long-term reliability and reducing creepage/clearance requirements.

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-20AU-T	20 A range, 100 mV/A sensitivity, 80 kHz bandwidth, no EEPROM, no dual OCD outputs	Lacks programmable over-current detection and UL certification; limited to non-safety-critical industrial use	Select when cost sensitivity outweighs diagnostic capability and automotive qualification requirements
TMCS1108A4U	±50 A range, 400 mV/A sensitivity, 800 kHz bandwidth, ratiometric output, no integrated current rail	Requires external shunt resistor; higher sensitivity but lower isolation rating (800 V_peak)	Select when ultra-high bandwidth is prioritized and external shunt integration is acceptable

Compared with ACS724LLCTR-20AU-T and TMCS1108A4U, TLE4971A025N5UE0001XUMA1 uniquely combines UL-certified 1150 V_peak isolation, on-rail 220 µΩ sensing, dual independently configurable OCD outputs, and EEPROM-based field reprogrammability-making it optimal for ASIL-B automotive power conversion where safety, precision, and long-term maintainability are co-prioritized.

Availability

TLE4971A025N5UE0001XUMA1 is available at Aetrix Electronics and suitable for On-Board Chargers, motor inverters, and industrial servo drives requiring stable component supply, automotive qualification, and long-lifecycle support.

Supply support for TLE4971A025N5UE0001XUMA1 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 AG 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 coreless current sensing ICs optimized for high-efficiency, high-reliability automotive electrification systems-including OBCs, traction inverters, and DC-DC converters-where galvanic isolation, low insertion loss, and functional safety are mandatory.

FAQ

What is the purpose of the dual OCD outputs (OCD1 and OCD2)?

OCD1 and OCD2 provide independent, programmable over-current detection paths with different threshold factors (1.25× and 0.82× full scale). They enable hierarchical fault handling-for example, OCD2 triggers immediate shutdown at 20.5 A for short-circuit protection, while OCD1 flags 31.25 A for thermal overload warning-without interfering with the main analog measurement path.

Can TLE4971A025N5UE0001XUMA1 be used with a 5 V supply?

No. This device operates exclusively at 3.3 V nominal supply (3.1–3.5 V range). The internal regulator and analog circuitry are designed for 3.3 V; applying 5 V exceeds absolute maximum ratings and will cause permanent damage. A dedicated 3.3 V LDO or DC-DC converter is required in the system design.

How does the semi-differential output mode differ from single-ended mode?

In semi-differential mode, VREF is an output (1.65 V fixed), and AOUT provides the single-ended signal referenced to that internal voltage-eliminating need for external reference. In single-ended mode, VREF is an input requiring external 1.65 V, and AOUT scales directly with it. Semi-differential simplifies layout and improves noise immunity in automotive harness environments.

Is external calibration required after soldering?

No. The device ships fully calibrated from Infineon and maintains accuracy over temperature and lifetime without end-of-line calibration. Its coreless architecture avoids aging-related drift seen in shunt resistors or magnetic cores, and on-chip self-diagnostics continuously verify offset and gain integrity during operation.

TLE4971A025N5UE0001XUMA1 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:: -

Frequency:: 210kHz

Linearity:: -

Accuracy:: -

Voltage - Supply:: 3.1V ~ 3.5V

Response Time:: -

Current - Supply (Max):: 25mA

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Polarization:: Bidirectional

Mounting Type:: Surface Mount

Supplier Device Package:: -

TLE4971A025N5UE0001XUMA1 FAQ

1.How can I place an order for TLE4971A025N5UE0001XUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4971A025N5UE0001XUMA1 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 TLE4971A025N5UE0001XUMA1 reliable?

The price and inventory of TLE4971A025N5UE0001XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4971A025N5UE0001XUMA1 is usually 5 days.

3.What payment methods are accepted for TLE4971A025N5UE0001XUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4971A025N5UE0001XUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4971A025N5UE0001XUMA1?

TLE4971A025N5UE0001XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4971A025N5UE0001XUMA1 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 TLE4971A025N5UE0001XUMA1?

For technical support, including TLE4971A025N5UE0001XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4971A025N5UE0001XUMA1 requirements.

6.How does Aetrix verify that TLE4971A025N5UE0001XUMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4971A025N5UE0001XUMA1 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 TLE4971A025N5UE0001XUMA1 meets industry standards.

7.What is the process for return or replacement of TLE4971A025N5UE0001XUMA1?

All TLE4971A025N5UE0001XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4971A025N5UE0001XUMA1, 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 TLE4971A025N5UE0001XUMA1 part is unused and in its original packaging.

Return procedure for TLE4971A025N5UE0001XUMA1:

1.Submit a request within 90 days.

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

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