Infineon Technologies TLE7250LEXUMA1

Overview

TLE7250LEXUMA1 from Infineon Technologies is a high-speed CAN transceiver compliant with ISO 11898-2, serving as the physical layer interface between CAN protocol controllers and automotive HS CAN buses. It supports data rates up to 2 MBit/s, features loop delay symmetry <10 ns, operates from 4.5 V to 5.5 V VCC supply, and delivers ±8 kV HBM ESD robustness. It is deployed in engine control units for real-time sensor/actuator communication over differential bus lines.

For engineers reviewing the TLE7250LEXUMA1 datasheet, TLE7250LEXUMA1 pinout, TLE7250LEXUMA1 application, or TLE7250LEXUMA1 equivalent, key selection criteria include CAN FD timing compliance, power-save mode entry latency (<100 µs), bus leakage current in power-down (<1 µA), and AEC-Q100 Grade 1 qualification for under-hood environments.

Technical Context

The TLE7250LEXUMA1 implements a fully differential transmitter and receiver pair with matched propagation delays (tPHL/tPLH symmetry ≤10 ns) to ensure precise bit timing for CAN FD frames. Its internal voltage divider (VCC/2 reference) enables stable common-mode biasing across wide temperature ranges (–40 °C to 150 °C).

It supports three operational modes: Normal (full TX/RX), Power-Save (TX disabled, RX active, I_CC ≤ 150 µA), and Receive-Only (TX disabled, NRM = low, bus termination retained). Mode transitions are controlled via NEN and NRM pins with defined delay times (≤5 µs for NEN assertion).

Key Specifications

Pinout & Package

Package: PG-TSON-8 (leadless, thermally enhanced, AOI-compatible); exposed thermal pad connected to PCB ground plane for improved heat dissipation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed CAN transceiver applications.

Compared with TJA1042T/3 and TJA1057, the TLE7250LEXUMA1 uniquely balances ultra-low power-down leakage (<1 µA), wide supply tolerance (4.5–5.5 V), and guaranteed loop delay symmetry-making it optimal for mixed-supply, sleep-capable automotive networks demanding CAN FD timing fidelity.

Availability

TLE7250LEXUMA1 is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS sensor hubs requiring stable component supply, AEC-Q100 Grade 1 qualification, and long-term automotive lifecycle support.

Supply support for TLE7250LEXUMA1 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, automotive ICs, and security solutions, with global manufacturing and automotive qualification infrastructure.

The TLE7250LEXUMA1 belongs to Infineon's Smart Power Technology (SPT) family, engineered specifically for harsh automotive environments requiring high EMI immunity, transient robustness, and precise CAN physical layer timing.

FAQ

Is TLE7250LEXUMA1 pin-compatible with TLE7250SJ?

Yes, TLE7250LEXUMA1 (PG-TSON-8) and TLE7250SJ (PG-DSO-8) share identical pin assignment and electrical functionality. However, their footprints differ: PG-TSON-8 uses a leadless 3×3 mm package with thermal pad, while PG-DSO-8 is a standard SOIC-8 with gull-wing leads. Layout redesign is required for package substitution.

What is the maximum allowable decoupling capacitor ESR for VCC?

The datasheet specifies a 100 nF ceramic capacitor with X7R dielectric and ESR ≤ 100 mΩ. Higher ESR values (>200 mΩ) degrade transient response during bus dominant-to-recessive transitions and may cause overshoot exceeding ISO 11898-2 voltage limits on CANH/CANL.

Does TLE7250LEXUMA1 support CAN FD arbitration phase?

No - the TLE7250LEXUMA1 supports CAN FD data phase up to 2 MBit/s but does not modify arbitration bit timing. It operates identically to classical CAN during arbitration (dominant/recessive interpretation), as required by ISO 11898-2. The controller handles arbitration logic; the transceiver only converts logic levels to differential bus signals.

Can NEN and NRM be tied together to simplify control logic?

Yes, connecting NEN and NRM to the same microcontroller GPIO allows combined mode control: driving both low enters Receive-Only mode; driving only NEN low enters Power-Save mode; leaving both high enables Normal mode. This configuration is validated in Infineon Application Note AN2015-08 and maintains all timing specifications.