Infineon Technologies TLI4971A075T5E0001XUMA1

Overview

TLI4971A075T5E0001XUMA1 from Infineon is a high-precision coreless magnetic current sensor in PG-TISON-8 package, designed for ±75A AC/DC measurement with analog output and dual fast over-current detection (OCD) outputs. It features 220µΩ insertion resistance, <1nH parasitic inductance, 240kHz bandwidth, galvanic isolation up to 1150V, and factory-calibrated semi-differential output mode. Used in PV inverters and motor drives where stray-field immunity and fast fault response are critical.

For engineers reviewing the TLI4971A075T5E0001XUMA1 datasheet, TLI4971A075T5E0001XUMA1 pinout, TLI4971A075T5E0001XUMA1 application, or TLI4971A075T5E0001XUMA1 equivalent, this page delivers verified technical context, real-world design meaning of specifications, validated pin functions, and confirmed alternative parts with actionable selection guidance.

Technical Context

The TLI4971A075T5E0001XUMA1 implements differential Hall sensing across an integrated current rail to suppress ambient magnetic fields-enabling operation in high-noise power electronics environments. Its monolithic architecture avoids saturation and hysteresis inherent in open-loop flux-concentrating sensors.

It supports three programmable analog output modes (single-ended, fully-differential, semi-differential), with default semi-differential configuration delivering 1.65V quiescent voltage and 16mV/A sensitivity for ±75A full-scale range. OCD1 and OCD2 are open-drain outputs with independently configurable thresholds (1.25× and 0.82× FS by default) and deglitch filtering.

Key Specifications

Pinout & Package

TLI4971A075T5E0001XUMA1 is housed in an 8-pin PG-TISON-8 surface-mount package (8 mm × 8 mm × 2.3 mm), optimized for high-current PCB integration with exposed thermal pad for solder-reflow heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ACS724LLCTR-75AB-T and TMCS1100A4QDR, TLI4971A075T5E0001XUMA1 uniquely combines ultra-low-loss integrated rail, differential stray-field rejection, dual programmable OCD outputs, and embedded EEPROM-all in a single 8×8mm SMD package-making it optimal for space-constrained, high-reliability industrial inverters.

Availability

TLI4971A075T5E0001XUMA1 is available at Aetrix Electronics and suitable for PV inverters, industrial motor drives, and onboard EV chargers requiring stable component supply, long-term lifecycle support, and certified galvanic isolation.

Supply support for TLI4971A075T5E0001XUMA1 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, and industrial control ICs, with leadership in silicon carbide and magnetic sensing technologies.

The TLI4971 product line delivers coreless current sensing solutions engineered for high-efficiency, high-reliability power conversion systems-including solar inverters, traction drives, and uninterruptible power supplies-where precision, speed, and isolation integrity are non-negotiable.

FAQ

What output modes does the TLI4971A075T5E0001XUMA1 support, and how do they differ in practice?

The device supports three analog output configurations: semi-differential (default), single-ended, and fully-differential. Semi-differential provides a chip-internal 1.65V reference on VREF and single-ended output on AOUT-ideal for noise-immune, low-component-count designs. Single-ended requires external VREF and offers flexibility in unidirectional/bidirectional sensing. Fully-differential doubles output swing (e.g., ±1.65V) using both AOUT and VREF as complementary outputs-best for high-SNR applications with differential ADC inputs.

How is over-current detection configured, and can thresholds be adjusted in-system?

OCD1 and OCD2 thresholds are stored in embedded EEPROM and configurable via Infineon's Serial Inspection and Configuration Interface (SICI). Default values are 93.75A (1.25× FS) and 61.5A (0.82× FS), but users can reprogram them across 16 discrete levels (0.5× to 2.0× FS) with 0.1× resolution. Deglitch filter times (0–1024 ns) are also programmable to reject PWM switching noise while preserving fault response speed.

Does the TLI4971A075T5E0001XUMA1 require calibration after soldering or during system operation?

No. The device ships fully calibrated from Infineon with traceable NIST-traceable test data. Its monolithic Hall architecture, on-chip temperature/stress compensation, and factory-set EEPROM parameters eliminate need for customer end-of-line calibration. System-level recalibration is unnecessary unless custom sensitivity ranges or output modes are programmed-those settings retain calibration integrity due to built-in compensation algorithms.

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

With 140µm copper thickness on Infineon's reference PCB, the junction-to-soldering-point thermal resistance is 0.25 K/W. At 75A RMS, power dissipation in the 220µΩ rail is 1.23W, resulting in ~0.3°C junction-to-pad rise-well within the 130°C max junction limit. The exposed thermal pad must be soldered to ≥4 cm² internal copper pour for sustained operation; no heatsink is required below 85°C ambient.