Infineon Technologies TLE8250XSJXUMA1

Overview

TLE8250XSJXUMA1 from Infineon is a high-speed CAN transceiver compliant with ISO 11898-2:2003, designed as the physical-layer interface between microcontroller CAN controllers and automotive HS CAN buses. It supports CAN FD data rates up to 2 MBit/s, features VIO voltage adaptation (1.8–5.5 V), operates across extended supply ranges (VCC: 4.5–27 V; VIO: 1.8–5.5 V), and delivers <255 ns loop delay symmetry for precise timing in Japanese OEM ECUs.

For engineers reviewing the TLE8250XSJXUMA1 datasheet, TLE8250XSJXUMA1 pinout, TLE8250XSJXUMA1 application, or TLE8250XSJXUMA1 equivalent, key selection criteria include guaranteed CAN FD timing compliance, receive-only mode control via RM pin, short-circuit protection on CANH/CANL, low bus leakage (<1 µA) in power-down state, and AEC-Q100 qualification for under-hood deployment.

Technical Context

The TLE8250XSJXUMA1 implements a differential HS CAN physical layer with independent transmitter and receiver paths, where dominant state is defined by V_DIFF ≥ 1.5 V (CANH–CANL) and recessive detection thresholds at 0.9 V (dominant) and 0.5 V (recessive). Its internal pull-up on TxD and pull-down on RM enable robust mode control without external biasing.

It integrates fail-safe functions including TxD time-out (prevents bus lock-up), overtemperature shutdown, and CAN bus short-circuit protection to battery, ground, and VCC. The device uses Infineon's Smart Power Technology (SPT) to achieve ±8 kV HBM ESD immunity and enhanced EMI/EME performance across 150 kHz–108 MHz.

Key Specifications

Pinout & Package

Package: PG-DSO-8 (RoHS-compliant, surface-mount, 8-pin exposed pad SOIC variant with thermal enhancement).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TJA1043T and TLE6250G, the TLE8250XSJXUMA1 uniquely combines VeLIO certification, 2 MBit/s CAN FD timing guarantee, VIO adaptability, and hardware-enforced receive-only mode-making it the only choice for new Japanese OEM powertrain and chassis modules requiring full CAN FD interoperability and fail-safe monitoring.

Availability

TLE8250XSJXUMA1 is available at Aetrix Electronics and suitable for Engine Control Units, Electric Power Steering systems, and Chassis Control Modules requiring stable component supply across automotive production lifecycles.

Supply support for TLE8250XSJXUMA1 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 TLE8250XSJXUMA1 belongs to Infineon's TLE8250X family of high-speed CAN transceivers, engineered specifically for AEC-Q100-compliant automotive networks demanding CAN FD timing precision, electromagnetic robustness, and fail-safe operation in harsh environments.

FAQ

What is the purpose of the RM pin on the TLE8250XSJXUMA1?

The RM (Receive-only Mode) pin is a dedicated hardware control input that disables the transmitter when driven high, allowing the device to monitor the CAN bus without driving it. This enables safe diagnostic listening, partial network wake-up, and fault-isolation scenarios without bus arbitration conflicts. Its internal pull-down ensures default normal-operation mode on power-up.

Does the TLE8250XSJXUMA1 support CAN FD at 2 MBit/s in all operating conditions?

Yes-the device guarantees ≤255 ns loop delay symmetry across its full specified temperature range (−40 °C to +150 °C) and supply range (VCC: 4.5–27 V; VIO: 1.8–5.5 V), meeting ISO 11898-2:2003 and VeLIO requirements for 2 MBit/s CAN FD frames. This is validated per Infineon's production test flow, not just typical conditions.

How does the TxD time-out function improve system reliability?

The TxD time-out automatically disables the transmitter after approximately 1.5 ms of continuous dominant output, preventing firmware hangs or stuck-at-low faults from locking the entire CAN bus. This hardware-level protection ensures network availability for other nodes even during local MCU failure, a critical requirement for ASIL-B/C systems.

Can the TLE8250XSJXUMA1 be used with a 1.8 V microcontroller?

Yes-its VIO pin accepts 1.8 V to 5.5 V, setting logic thresholds for TxD, RM, and RxD. When VIO = 1.8 V, the TxD input recognizes >1.26 V as high and <0.54 V as low, and RxD outputs compatible 1.8 V CMOS levels. This eliminates external level shifters in low-voltage MCU designs.