Infineon Technologies TLI4971A025T5E0001XUMA1

Overview

TLI4971A025T5E0001XUMA1 from Infineon is a high-precision coreless magnetic current sensor in PG-TISON-8 package, designed for ±25A DC/AC measurement with analog output and dual fast over-current detection (OCD) outputs. It features 48 mV/A sensitivity, <1 nH parasitic inductance, 240 kHz bandwidth, and galvanic functional isolation up to 1150 V. Used in motor drives and PV inverters where stray-field immunity and ultra-low insertion loss (220 µΩ) are critical.

For engineers reviewing the TLI4971A025T5E0001XUMA1 datasheet, TLI4971A025T5E0001XUMA1 pinout, TLI4971A025T5E0001XUMA1 application, or TLI4971A025T5E0001XUMA1 equivalent, this page delivers verified technical context, calibrated performance parameters, differential sensing architecture, OCD threshold programming via SICI interface, and industrial-grade isolation compliance per UL1577 (3500 V_RMS, 60 s).

Technical Context

The TLI4971A025T5E0001XUMA1 implements a differential Hall sensing architecture across an integrated current rail, eliminating saturation and hysteresis inherent in flux-concentrating open-loop sensors. Its 220 µΩ primary resistance and sub-1 nH inductance enable minimal power loss and wide-bandgap operation up to 240 kHz.

It supports three programmable analog output modes - semi-differential (default), single-ended, and fully-differential - with EEPROM-stored configuration including OCD1/OCD2 thresholds (1.25× and 0.82× FS), deglitch filter settings, and non-ratiometric or ratiometric sensitivity scaling. The device ships pre-calibrated and requires no end-of-line calibration.

Key Specifications

Pinout & Package

TLI4971A025T5E0001XUMA1 is housed in an 8-pin PG-TISON-8 surface-mount package (8 mm × 8 mm × 2.3 mm), optimized for PCB-level current rail integration and thermal dissipation via exposed pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ACS724LLCTR-20AU-T and TLE4971-25U5-E0001, the TLI4971A025T5E0001XUMA1 uniquely combines UL-certified 3500 V_RMS isolation, dual independently programmable OCD outputs, and EEPROM-configurable sensitivity/output mode - making it the only option qualified for certified industrial inverters and chargers requiring both precision and functional safety readiness.

Availability

TLI4971A025T5E0001XUMA1 is available at Aetrix Electronics and suitable for motor drives, PV inverters, industrial chargers, and UPS systems requiring stable component supply, long-term lifecycle support, and certified isolation performance.

Supply support for TLI4971A025T5E0001XUMA1 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, radar, and magnetic sensing technologies.

The TLI4971 product line delivers high-precision, coreless current sensing for industrial inverters and motor drives - engineered to replace traditional shunt+isolator or Hall-core solutions with superior bandwidth, linearity, and stray-field immunity.

FAQ

What output modes does the TLI4971A025T5E0001XUMA1 support, and how are they selected?

The device supports semi-differential (default), single-ended, and fully-differential analog output modes. Mode selection is performed via the Serial Inspection and Configuration Interface (SICI) by writing to EEPROM registers. Semi-differential uses internal 1.65 V reference on VREF and single-ended output on AOUT; fully-differential uses both AOUT and VREF as complementary outputs for doubled swing; single-ended requires external VREF input. No recalibration is needed after reconfiguration.

How is over-current detection configured, and what are the default thresholds?

OCD1 and OCD2 thresholds are user-programmable via SICI interface and stored in EEPROM. By default, OCD1 triggers at 1.25× full scale (±31.25 A) and OCD2 at 0.82× full scale (±20.5 A). Each channel includes a deglitch filter with configurable blanking time (0–10 µs) to suppress PWM transients. Both outputs are open-drain and support wired-AND combining.

Does the TLI4971A025T5E0001XUMA1 require external calibration or trimming?

No. The device ships fully calibrated from Infineon's production line. All sensitivity, offset, temperature compensation, and OCD parameters are factory-trimmed and stored in on-chip EEPROM. End users do not perform any calibration; configuration changes (e.g., output mode or OCD threshold) retain traceable accuracy without recalibration.

What is the thermal performance of the integrated current rail, and how is heat managed?

The integrated current rail exhibits 220 µΩ resistance at 25°C, generating ≤0.14 W loss at 25 A RMS. Thermal resistance from current rail to soldering point is 0.25 K/W on Infineon's reference PCB (140 µm copper). Heat is conducted through the exposed thermal pad and adjacent copper pours; recommended layout includes ≥200 mm² of 2-oz copper connected to the pad for optimal dissipation in continuous 25 A operation.