Infineon Technologies TLE9250SJXUMA1

Overview

TLE9250SJXUMA1 from Infineon is a high-speed CAN FD transceiver compliant with ISO 11898-2:2016 and SAE J2284-4/-5, serving as the physical layer interface between microcontroller CAN controllers and automotive HS CAN bus networks. It supports data rates up to 5 MBit/s, features ±8 kV HBM ESD robustness, operates across 4.5–5.5 V supply, and delivers guaranteed loop delay symmetry for reliable CAN FD frame transmission in engine control units and chassis modules.

For engineers reviewing the TLE9250SJXUMA1 datasheet, TLE9250SJXUMA1 pinout, TLE9250SJXUMA1 application, or TLE9250SJXUMA1 equivalent, key selection criteria include CAN FD timing symmetry, fail-safe mode behavior (TxD time-out, overtemperature shutdown), bus leakage current in power-down (<1 µA), and compatibility with AOI-friendly PG-TSON-8 packaging used in automotive ECU production.

Technical Context

The TLE9250SJXUMA1 implements a fully differential transmitter with matched CANH/CANL rise/fall times and symmetric propagation delays (t_PHL, t_PLH) to minimize bit error at 5 MBit/s. Its receiver includes a precise dominant/recessive threshold comparator referenced to V_CC/2 and supports common-mode immunity from –40 V to +40 V.

Mode control is managed via two logic inputs: NEN (active-low enable) and NRM (active-low receive-only select), enabling Normal, Receive-Only, Power-Save, and Power-Down states with defined transition delays (e.g., <10 µs wake-up from Power-Save). Fail-safe functions include thermal shutdown at 170–190 °C and short-circuit protection on CANH/CANL.

Key Specifications

Pinout & Package

Package: PG-TSON-8 (3.0 mm × 3.0 mm, 0.65 mm pitch), leadless, RoHS-compliant, optimized for automated optical inspection (AOI) and high-density automotive PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLE9250SJXUMA1, the NXP TJA1057 offers broader supply flexibility but sacrifices critical fail-safes (TxD time-out, tighter delay symmetry) required for automotive safety-critical CAN FD nodes; no valid drop-in replacement exists without revalidation of timing and fault-response behavior.

Availability

TLE9250SJXUMA1 is available at Aetrix Electronics and suitable for Engine Control Units, Electric Power Steering systems, and Transmission Control Units requiring stable component supply across automotive production lifecycles (15+ years).

Supply support for TLE9250SJXUMA1 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 expertise.

The TLE9250 belongs to Infineon's automotive transceiver product line, engineered specifically for ISO 11898-2:2016-compliant CAN FD networks in safety-critical vehicle domains including powertrain and chassis control.

FAQ

What is the maximum CAN FD data rate supported by TLE9250SJXUMA1?

The TLE9250SJXUMA1 supports CAN FD data frames up to 5 MBit/s, validated under ISO 11898-2:2016 with guaranteed loop delay symmetry ≤10 ns. This performance is achievable in typical automotive harness configurations with up to 30 nodes and 40 m bus length, provided PCB layout follows Infineon's recommended differential routing and termination guidelines.

Does TLE9250SJXUMA1 require an external common-mode choke?

No - the TLE9250SJXUMA1 achieves ultra-low electromagnetic emission (EME) through precisely matched CANH/CANL driver symmetry and optimized internal layout, enabling compliance with CISPR 25 Class 5 without external chokes. This reduces BOM cost, PCB area, and design validation effort in space-constrained automotive modules.

How does the TxD time-out function protect the system?

The TxD time-out disables the transmitter after ~200 µs of continuous dominant output, preventing bus lockup if the MCU fails to release the TxD line. This feature is hardware-based, independent of firmware, and ensures network recovery without requiring host processor intervention - critical for ASIL-B systems like EPS and brake control.

What is the thermal shutdown behavior of TLE9250SJXUMA1?

The device triggers thermal shutdown at a junction temperature of 170–190 °C, halting transmitter operation while maintaining receiver functionality. Hysteresis of 5–20 K ensures stable re-enablement only after sufficient cooling, protecting against repeated cycling during sustained overtemperature events such as CAN bus short circuits or ambient temperature excursions.