Infineon Technologies TLE4971A050N5E0001XUMA1

Overview

TLE4971A050N5E0001XUMA1 from Infineon is a high-precision, coreless magnetic current sensor in PG-TISON-8-5 package, designed for ±50A DC/AC automotive current sensing with analog output and dual open-drain over-current detection (OCD1/OCD2). It features 24 mV/A sensitivity, 210 kHz bandwidth, 220 µΩ integrated current rail resistance, and operates across –40°C to +125°C ambient temperature. Used in onboard chargers and motor inverters where galvanic isolation and stray-field immunity are critical.

For engineers reviewing the TLE4971A050N5E0001XUMA1 datasheet, TLE4971A050N5E0001XUMA1 pinout, TLE4971A050N5E0001XUMA1 application, or TLE4971A050N5E0001XUMA1 equivalent, this page delivers verified technical context, calibrated output modes (semi-differential default), OCD threshold factors (1.25 / 0.82), EEPROM-programmable configuration, and functional isolation up to 1150 V_peak.

Technical Context

The TLE4971A050N5E0001XUMA1 implements differential Hall sensing with on-chip signal conditioning and self-diagnostic capability, enabling accurate current measurement without external calibration. Its integrated 220 µΩ current rail yields ultra-low power loss and <1 nH parasitic inductance, supporting fast transient response in high-frequency inverters.

It supports three analog output configurations-semi-differential (default), single-ended, and fully-differential-each with programmable quiescent voltage (e.g., 1.65 V) and ratiometric options. OCD outputs feature user-configurable blanking times and deglitch filtering, with active-low open-drain logic compatible with wired-AND fault-bus architectures.

Key Specifications

Pinout & Package

Package: PG-TISON-8-5, 8×8 mm SMD, thermally enhanced exposed pad, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar coreless current sensing applications.

Compared with ACS724LLCTR-50AB-T and TMCS1100A4QDR, the TLE4971A050N5E0001XUMA1 uniquely integrates dual programmable OCD outputs, EEPROM-based configuration, and differential Hall topology for superior stray-field immunity-critical for automotive-grade reliability in compact inverter layouts.

Availability

TLE4971A050N5E0001XUMA1 is available at Aetrix Electronics and suitable for onboard chargers, motor inverters, servo drives, and battery management systems requiring stable component supply, AEC-Q100 qualification, and long-term automotive lifecycle support.

Supply support for TLE4971A050N5E0001XUMA1 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 manufacturing and automotive qualification expertise.

The TLE4971 product line delivers high-accuracy, coreless current sensing for electric vehicle powertrain systems-including OBC, DC-DC converters, and traction inverters-where miniaturization, isolation, and functional safety are mandatory.

FAQ

What output modes does the TLE4971A050N5E0001XUMA1 support, and how are they configured?

The device supports semi-differential (default), single-ended, and fully-differential analog output modes. Configuration is stored in on-chip EEPROM and programmed via Infineon's Serial Inspection and Configuration Interface (SICI). Semi-differential uses VREF as internal 1.65 V reference output and AOUT as single-ended signal; fully-differential uses both AOUT and VREF as complementary outputs with doubled sensitivity.

Does the TLE4971A050N5E0001XUMA1 require external calibration during system integration?

No. The device ships fully calibrated from Infineon's production line, with sensitivity, offset, and temperature coefficients pre-characterized and stored in EEPROM. No end-of-line calibration is required, reducing manufacturing test complexity and ensuring consistent performance across units and temperature ranges.

How does the dual OCD functionality operate, and can thresholds be adjusted independently?

OCD1 and OCD2 are independent open-drain outputs with separate, EEPROM-programmable thresholds: OCD1 triggers at 1.25× full-scale (62.5 A), OCD2 at 0.82× (41 A). Each includes user-configurable deglitch filtering (0 µs default) and blanking time, enabling staged fault response-for example, OCD2 for warning-level overload and OCD1 for immediate shutdown.

What is the thermal performance of the PG-TISON-8-5 package under continuous 50 A RMS operation?

On Infineon's reference PCB, the thermal resistance from current rail to solder point is 0.25 K/W. At 50 A RMS, power dissipation is 550 mW (I²R), resulting in ~138 K temperature rise above ambient. With 125°C max junction limit and 105°C recommended max solder-point temperature, it supports continuous operation up to 70°C ambient with adequate copper area and airflow.