Infineon Technologies TLE4971A075N5UE0001XUMA1

Overview

TLE4971A075N5UE0001XUMA1 from Infineon is a high-precision, coreless magnetic current sensor in PG-TISON-8-5 package, designed for automotive-grade DC/AC current sensing up to ±75 A. It features 220 µΩ insertion resistance, <1 nH parasitic inductance, 210 kHz bandwidth, and integrated EEPROM for field-programmable OCD thresholds and output modes (semi-differential default). Used in on-board chargers and motor inverters where galvanic isolation (1150 V_peak VIORM) and stray-field immunity are critical.

For engineers reviewing the TLE4971A075N5UE0001XUMA1 datasheet, TLE4971A075N5UE0001XUMA1 pinout, TLE4971A075N5UE0001XUMA1 application, or TLE4971A075N5UE0001XUMA1 equivalent, key selection criteria include full-scale range (±75 A), semi-differential analog output with 1.65 V quiescent voltage, dual open-drain OCD outputs with 0 µs filter, and UL certification for enhanced safety compliance in EV power systems.

Technical Context

The TLE4971A075N5UE0001XUMA1 implements a differential Hall plate architecture with on-chip signal conditioning, enabling accurate current measurement independent of external magnetic interference. Its coreless design eliminates saturation and hysteresis, supporting true DC and AC sensing up to 210 kHz with <50 dB suppression of homogeneous 20 mT fields.

Configuration is stored in embedded EEPROM via Serial Inspection and Configuration Interface (SICI), allowing runtime adjustment of OCD1/OCD2 thresholds (e.g., 1.25× and 0.82× full scale), blanking times, and output mode - all without external components. The device ships pre-calibrated and requires no end-of-line calibration.

Key Specifications

Pinout & Package

Package: PG-TISON-8-5 (8 mm × 8 mm, 1.2 mm height, exposed thermal pad, RoHS-compliant).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ACS724LLCTR-75AB-T and TMR2505-75A, the TLE4971A075N5UE0001XUMA1 uniquely combines UL-certified isolation, EEPROM-based field configurability, integrated low-loss current rail, and dual independent OCD outputs - making it optimal for automotive OBC and inverter designs requiring functional safety and long-term calibration stability.

Availability

TLE4971A075N5UE0001XUMA1 is available at Aetrix Electronics and suitable for on-board chargers, motor inverters, and industrial battery management systems requiring stable component supply, automotive qualification (AEC-Q100 Grade 0), and UL safety certification.

Supply support for TLE4971A075N5UE0001XUMA1 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 sensor solutions, with global R&D and manufacturing infrastructure.

The TLE4971 product line delivers high-precision, coreless current sensing for electric vehicle powertrain systems - engineered specifically for functional safety (ISO 26262 ASIL-B ready), high-temperature reliability, and seamless integration into automotive-grade OBC and inverter architectures.

FAQ

What output modes does the TLE4971A075N5UE0001XUMA1 support, and how are they configured?

The device supports semi-differential (default), single-ended, and fully-differential output modes. Configuration is performed via Infineon's Serial Inspection and Configuration Interface (SICI) and stored in on-chip EEPROM. Semi-differential uses VREF as a buffered 1.65 V reference output and AOUT as the single-ended signal; no external components are required. Mode selection changes quiescent voltage behavior and sensitivity scaling.

How is over-current detection implemented, and can thresholds be adjusted?

Two independent open-drain OCD outputs (OCD1 and OCD2) provide fast over-current detection using raw Hall signals fed into internal comparators. Thresholds are programmable as factors of full scale (e.g., 1.25× and 0.82× ±75 A) and stored in EEPROM. Deglitch filtering is configurable per channel; default setting is 0 µs for minimal latency in fault response.

Does the TLE4971A075N5UE0001XUMA1 require external calibration or trimming?

No. The device ships fully calibrated from Infineon with guaranteed sensitivity error <±0.5% over −40°C to +125°C and zero offset drift <±0.1% FS/°C. All calibration data is factory-programmed into EEPROM. End users do not perform any calibration - only optional configuration of OCD thresholds or output mode via SICI interface.

What is the thermal performance of the PG-TISON-8-5 package under continuous 75 A load?

On Infineon's reference PCB (140 µm copper), the thermal resistance from current rail to soldering point is 0.25 K/W. At 75 A RMS, power dissipation is ~1.24 W (I²R), resulting in ~0.31 K temperature rise above board temperature - well within the 125°C max ambient rating. Derating is required above 105°C ambient for 8-year lifetime compliance.