Infineon Technologies TLE4971A120T5E0001XUMA1

Overview

TLE4971A120T5E0001XUMA1 from Infineon is a high-precision coreless magnetic current sensor in PG-TISON-8-6 package, designed for automotive-grade DC/AC current measurement up to ±120 A with 220 µΩ insertion resistance, 210 kHz bandwidth, and galvanic isolation up to 1150 V_peak. It delivers semi-differential analog output (1.65 V quiescent), dual open-drain over-current detection outputs, and on-chip EEPROM for field-programmable OCD thresholds and blanking times-used in onboard chargers and motor inverters.

For engineers reviewing the TLE4971A120T5E0001XUMA1 datasheet, TLE4971A120T5E0001XUMA1 pinout, TLE4971A120T5E0001XUMA1 application, or TLE4971A120T5E0001XUMA1 equivalent, key selection criteria include ±120 A full-scale range, <±2.0% sensitivity error over temperature, 220 µΩ primary path resistance, integrated lead tip inspection (LTI), and functional isolation compliance per ISO 26262 ASIL-B ready configuration.

Technical Context

The TLE4971A120T5E0001XUMA1 implements a differential Hall plate architecture with on-die signal conditioning, enabling stray-field suppression >50 dB and operation in harsh magnetic environments. Its internal EEPROM stores user-configurable parameters including OCD1/OCD2 thresholds (e.g., 1.25× and 0.82× full scale), deglitch filter time (0 µs default), and output mode (semi-differential by default).

It features a monolithic Hall sensor with integrated current rail, delivering ratiometric or non-ratiometric analog output depending on programming, and supports fast over-current response via dedicated comparators fed directly from raw Hall signals-bypassing main signal path latency for system-level protection.

Key Specifications

Pinout & Package

Package: PG-TISON-8-6 (8 mm × 8 mm × 1.2 mm SMD, exposed thermal pad, lead tip inspection compatible).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ACS770KCB-150U-PFF-T and TMR2103-120A, the TLE4971A120T5E0001XUMA1 uniquely combines automotive qualification, on-rail integration, EEPROM configurability, LTI support, and functional isolation in one PG-TISON-8-6 package-enabling drop-in replacement in OBC and inverter designs requiring ASIL-B readiness and production testability.

Availability

TLE4971A120T5E0001XUMA1 is available at Aetrix Electronics and suitable for onboard chargers, traction inverters, and servo drive systems requiring stable component supply, long-term lifecycle support, and automotive-grade traceability.

Supply support for TLE4971A120T5E0001XUMA1 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 electronics, and sensor solutions, with global R&D and manufacturing infrastructure.

The TLE4971 product line delivers coreless current sensing ICs optimized for ASIL-B compliant automotive electrification systems-including OBC, DC-DC converters, and motor control units-emphasizing accuracy, isolation, and field-programmable protection.

FAQ

What output modes does the TLE4971A120T5E0001XUMA1 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 is factory-default: VREF outputs an internal 1.65 V reference while AOUT provides the current-proportional signal. No external components are needed for mode switching-configuration persists after power cycle.

Does the TLE4971A120T5E0001XUMA1 require end-of-line calibration?

No. The device ships fully calibrated from Infineon with guaranteed sensitivity error ≤±1.5% at 25°C and ≤±2.0% over −40°C to +125°C. All calibration coefficients-including offset, gain, and temperature compensation-are stored in on-chip EEPROM. Customer calibration is unnecessary unless custom OCD thresholds or blanking times are programmed post-deployment.

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

Isolation is implemented via monolithic die separation and molded package construction, achieving 1150 V_peak working voltage (VIORM) per DIN EN 60747-17. It complies with reinforced insulation requirements for automotive 400–800 V battery systems and supports ISO 26262 ASIL-B functional safety goals. No external isolators or optocouplers are required for signal or power domain separation.

Can the over-current detection outputs be used independently, and what are their electrical characteristics?

Yes-OCD1 and OCD2 are independent open-drain outputs with active-low assertion, each configurable to different thresholds (e.g., 1.25× and 0.82× full scale) and blanking times. Both tolerate up to 3.5 V and support wired-AND connection to form a system-level fault bus. Deglitch filtering is programmable, and outputs respond within microseconds of threshold violation-bypassing the main analog signal path for minimal latency.