Infineon Technologies TLE7269GXUMA1

Overview

TLE7269GXUMA1 from Infineon Technologies is a dual-channel automotive LIN transceiver in PG-DSO-14 package, compliant with LIN 1.3/2.0/2.1 and SAE J2602 standards, supporting up to 20 kBaud data rate, ±8 kV ESD robustness per IEC61000-4-2, and dual independent sleep-mode wake-up via BUS1/BUS2 or local WK pin - deployed in body control modules for distributed door/window node communication.

For engineers reviewing the TLE7269GXUMA1 datasheet, TLE7269GXUMA1 pinout, TLE7269GXUMA1 application, or TLE7269GXUMA1 equivalent, key selection criteria include dual-transceiver independence, bus short-to-GND handling, INH-controlled external voltage regulator support, low-slope/flash mode configuration, and AEC-Q100 qualification for under-hood environments.

Technical Context

The TLE7269GXUMA1 integrates two fully independent LIN physical layer transceivers on a single monolithic die using Infineon's Smart Power Technology (SPT®), enabling concurrent operation with separate INH1/INH2 outputs for individual voltage regulator control and master/slave node configuration. Each channel features programmable slew-rate modes (Normal, Low Slope, Flash) and dedicated wake-up detection logic.

It implements dual-receiver filtering with integrated noise suppression, bus short-to-VBAT/GND protection, over-temperature shutdown, and under-voltage lockout. Logic I/O supports both 3.3 V and 5 V microcontrollers via shared VIO supply, while BUS1/BUS2 pins integrate internal termination and pull-up current sources - eliminating external resistors required by legacy single-channel equivalents like TLE7259-3GE.

Key Specifications

Pinout & Package

Package: PG-DSO-14 (Plastic Dual Small Outline, 14-pin, exposed thermal pad, RoHS-compliant).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel LIN transceiver applications.

Compared with TJA1028TK/0Z and TLD5098EL, the TLE7269GXUMA1 uniquely delivers true dual independent LIN channels with coordinated power control (INH1/INH2), bus-specific wake-up disable (W2O), and AEC-Q100-qualified operation - making it the sole fit for space-constrained, multi-subsystem automotive nodes requiring hardware-level fault isolation.

Availability

TLE7269GXUMA1 is available at Aetrix Electronics and suitable for body control modules, roof modules, seat control units, and climate control panels requiring stable component supply across automotive production lifecycles.

Supply support for TLE7269GXUMA1 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, and security ICs, with global manufacturing and qualification infrastructure for automotive-grade components.

The TLE7269GXUMA1 belongs to Infineon's automotive transceiver product line, engineered specifically for robust, low-emission LIN communication in harsh vehicle environments - targeting body electronics, comfort systems, and distributed control units.

FAQ

What LIN protocol versions does the TLE7269GXUMA1 support?

The TLE7269GXUMA1 is compliant with LIN specifications 1.3, 2.0, 2.1, and SAE J2602. It supports all mandatory electrical characteristics and timing requirements defined in these standards, including dominant/recessive voltage thresholds, bus arbitration, and synchronization field detection - verified through Infineon's AEC-Q100 qualification testing.

How does the W2O pin affect wake-up behavior on BUS2?

When W2O is driven HIGH, the BUS2 wake-up comparator is disabled - preventing LIN traffic on BUS2 from exiting Sleep mode. This allows selective wake-up control: BUS1 remains active for critical commands (e.g., door unlock), while BUS2 stays inert during non-essential operations (e.g., mirror folding). The pin has an integrated pull-down for default OFF behavior.

Can TLE7269GXUMA1 operate as a LIN master node?

Yes - each channel can be configured as master via external 1 kΩ resistor and reverse diode between BUSx and VS (or INHx). The INH1/INH2 outputs provide battery-referenced control signals to enable external termination resistors only during master operation, reducing power consumption in slave-only states.

What is the purpose of the VIO pin, and what voltages does it accept?

VIO supplies power to the RxD and TxD logic interfaces only. It accepts either 3.3 V or 5 V, allowing direct connection to corresponding MCU I/O domains without level-shifting circuitry. This pin is electrically isolated from VS, preventing digital noise coupling into the analog bus driver section.