Infineon Technologies TLE4971A120T5UE0001XUMA1

Overview

TLE4971A120T5UE0001XUMA1 from Infineon is a high-precision, coreless magnetic current sensor in PG-TISON-8-6 package, delivering ±120A full-scale DC/AC sensing with 10 mV/A sensitivity, 210 kHz bandwidth, and galvanic isolation up to 1150 V_peak VIORM. It integrates a 220 µΩ current rail, <1 nH parasitic inductance, and on-chip EEPROM for configurable OCD thresholds and output modes-designed for automotive On-Board Chargers and motor inverters.

For engineers reviewing the TLE4971A120T5UE0001XUMA1 datasheet, TLE4971A120T5UE0001XUMA1 pinout, TLE4971A120T5UE0001XUMA1 application, or TLE4971A120T5UE0001XUMA1 equivalent, key selection criteria include its semi-differential analog output (1.65 V quiescent), dual open-drain OCD outputs with programmable blanking, lead tip inspection (LTI) capability, and ISO 26262 documentation support for ASIL-B functional safety integration.

Technical Context

The TLE4971A120T5UE0001XUMA1 implements a differential Hall plate architecture with on-die signal conditioning, temperature compensation, and self-diagnostic logic. Its coreless design eliminates saturation and hysteresis, enabling linear response across ±120 A with ≤±2.0% sensitivity error over −40°C to +125°C.

Configuration is stored in embedded EEPROM via Serial Inspection and Configuration Interface (SICI), supporting runtime-selectable output modes (single-ended, fully-differential, semi-differential), OCD1/OCD2 threshold factors (1.25×/0.82× FS), and deglitch filter settings-including zero-delay detection for fast fault response in traction inverters.

Key Specifications

Pinout & Package

Delivered in PG-TISON-8-6 surface-mount package (8 mm × 8 mm × 1.9 mm), featuring exposed thermal pad for enhanced heat dissipation and lead tip inspection (LTI) compatibility for automated solder-joint quality verification.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ACS724LLCTR-120AU-T and TMCS1100A4QDR, the TLE4971A120T5UE0001XUMA1 uniquely combines factory-calibrated coreless sensing, dual configurable OCD outputs, LTI support, and ISO 26262 documentation-making it optimal for ASIL-B automotive power stages where integration, reliability, and testability are critical.

Availability

TLE4971A120T5UE0001XUMA1 is available at Aetrix Electronics and suitable for automotive On-Board Chargers, traction inverters, and industrial servo drives requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for safety-critical designs.

Supply support for TLE4971A120T5UE0001XUMA1 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 microcontrollers, and sensor solutions, with global R&D and manufacturing infrastructure.

The TLE4971 belongs to Infineon's high-precision current sensor product line, engineered specifically for ASIL-B compliant automotive electrification systems including OBCs, inverters, and battery disconnect units-emphasizing galvanic isolation, magnetic immunity, and functional safety readiness.

FAQ

What output modes does the TLE4971A120T5UE0001XUMA1 support, and how are they configured?

The device supports single-ended, fully-differential, and semi-differential analog output modes, all selectable via EEPROM programming through the Serial Inspection and Configuration Interface (SICI). Semi-differential mode is factory-default, providing 1.65 V quiescent on VREF and proportional voltage on AOUT. No external components are needed for mode switching-configuration persists after power cycle.

Does the TLE4971A120T5UE0001XUMA1 require external calibration after soldering?

No. The TLE4971A120T5UE0001XUMA1 ships fully calibrated from Infineon, with sensitivity, offset, and temperature coefficients trimmed during final test. Its coreless architecture and on-die compensation eliminate the need for customer end-of-line calibration-even after reflow soldering on standard FR4 PCBs with 140 µm copper.

How is galvanic isolation achieved, and what standards does it meet?

Isolation is achieved through monolithic integration of Hall sensors and signal conditioning circuitry separated by thick oxide layers within the silicon die-not external transformers or optocouplers. It achieves 1150 V_peak working voltage (VIORM) per DIN EN 60747-17, certified to UL 1577 and compliant with reinforced insulation requirements of IEC 60664-1 for 800 V battery systems.

Can the OCD outputs drive an MCU interrupt directly, and what voltage levels are supported?

Yes-both OCD1 and OCD2 are open-drain outputs rated for 3.5 V maximum sink voltage and capable of sinking ≥4 mA. They can directly assert low-active interrupts on 3.3 V MCUs without pull-up resistors if the MCU input has internal weak pull-ups; otherwise, a 4.7 kΩ external pull-up to VDD is recommended for noise-immune operation in automotive environments.