Infineon Technologies TLI4971A075T5UE0001XUMA1

Overview

TLI4971A075T5UE0001XUMA1 from Infineon is a high-precision coreless magnetic current sensor in PG-TISON-8 package, designed for ±75A DC/AC measurement with analog output and dual ultrafast over-current detection (OCD) outputs. It features 220 µΩ insertion resistance, <1 nH parasitic inductance, 240 kHz bandwidth, galvanic isolation up to 1150 V, and factory-calibrated semi-differential output mode with 1.65 V quiescent voltage.

For engineers reviewing the TLI4971A075T5UE0001XUMA1 datasheet, TLI4971A075T5UE0001XUMA1 pinout, TLI4971A075T5UE0001XUMA1 application, or TLI4971A075T5UE0001XUMA1 equivalent, this device supports fast OCD response with programmable thresholds, differential stray-field immunity, EEPROM-configurable output modes, and industrial-grade AEC-Q100 Grade 2 qualification.

Technical Context

The TLI4971A075T5UE0001XUMA1 uses two monolithic Hall plates in differential configuration to reject ambient magnetic interference, enabling operation in electrically noisy inverters and drives. Its integrated current rail eliminates magnetic core saturation and hysteresis, supporting linear ±75A full-scale measurement with non-ratiometric sensitivity of 16 mV/A.

It delivers three configurable analog output modes - semi-differential (default), single-ended, and fully-differential - each with distinct reference handling and voltage swing behavior. OCD1 and OCD2 are open-drain outputs with independent, EEPROM-programmable thresholds (e.g., 1.25× and 0.82× FS) and deglitch filtering, enabling hardware-level fault response without MCU intervention.

Key Specifications

Pinout & Package

TLI4971A075T5UE0001XUMA1 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 and integrated current rail terminals.

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 TMCS1108A4U, the TLI4971A075T5UE0001XUMA1 provides superior bandwidth, lower power loss, built-in dual OCD logic, and certified galvanic isolation - making it optimal for high-reliability industrial inverters requiring hardware-enforced fault response.

Availability

TLI4971A075T5UE0001XUMA1 is available at Aetrix Electronics and suitable for industrial motor drives, photovoltaic inverters, and on-board EV chargers requiring stable component supply, long-lifecycle support, and UL-certified isolation performance.

Supply support for TLI4971A075T5UE0001XUMA1 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, sensing, and automotive ICs, with leadership in silicon carbide, radar, and magnetic sensing technologies.

The TLI4971 belongs to Infineon's high-precision coreless current sensor product line, engineered specifically for industrial and automotive traction applications demanding galvanic isolation, fast fault detection, and drift-free DC/AC current measurement without magnetic cores.

FAQ

What output modes does the TLI4971A075T5UE0001XUMA1 support, and how do they differ electrically?

The device supports semi-differential (default), single-ended, and fully-differential analog output modes. In semi-diff mode, VREF outputs 1.65 V while AOUT provides single-ended current-proportional voltage. In single-ended mode, VREF becomes an external reference input. In fully-differential mode, both AOUT and VREF act as complementary analog outputs, doubling the effective voltage swing. All modes retain the same 16 mV/A sensitivity but differ in common-mode rejection, supply dependency, and PCB routing requirements.

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

OCD1 and OCD2 are independent open-drain outputs triggered by internal comparators monitoring the raw Hall signal. Thresholds are factory-set to 93.75 A and 61.5 A (1.25× and 0.82× ±75 A FS) but are fully reprogrammable via the Serial Inspection and Configuration Interface (SICI). Deglitch filter times (0–10 µs) and blanking windows are also EEPROM-configurable, enabling adaptation to specific power stage switching noise profiles without hardware changes.

Does the TLI4971A075T5UE0001XUMA1 require external calibration or trimming after soldering?

No. The device ships fully calibrated for its ±75 A range, including sensitivity, offset, temperature compensation, and OCD thresholds. Its monolithic Hall architecture and on-chip stress/temperature compensation eliminate the need for customer end-of-line calibration. Only if reprogramming output mode or sensitivity range via SICI is performed does recalibration occur automatically within the device - no external equipment or test fixtures are required.

What is the significance of the "U" and "E0001" suffixes in the part number TLI4971A075T5UE0001XUMA1?

The "U" denotes UL certification per UL 1577 (3500 V_RMS isolation, 60 s), confirming compliance for safety-critical industrial applications. "E0001" indicates the embedded EEPROM contains the standard configuration: ±75 A range, semi-differential output, 1.65 V VREF, OCD1 = 1.25× FS, OCD2 = 0.82× FS, and 0 µs deglitch filter. "XUMA1" is Infineon's tape-and-reel packaging code for PG-TISON-8 devices.