Infineon TLD21313EPXUMA1: Key Features and Application Overview

The Infineon TLD21313EPXUMA1 is a highly integrated, intelligent three-channel low-side switch designed for robust automotive and industrial applications. Manufactured using Infineon's proprietary Smart Power Technology (SPT), this device combines power, control, and protection functions into a single compact package, making it an ideal solution for driving resistive, inductive, and capacitive loads.

Key Features

At its core, the TLD2131-3EP is characterized by its three independent channels, each capable of handling a continuous output current of up to 170 mA. A standout feature is its very low standby current, which is crucial for modern applications where energy efficiency is paramount, especially in battery-powered systems.

The integration level is exceptionally high. Each channel includes a open-load detection circuit that functions both when the output is switched off and in a special diagnostic mode when the output is active. Furthermore, the device offers robust short-circuit protection and over-temperature protection, safeguarding both the IC itself and the connected loads from potential damage. All fault conditions are reported via a dedicated diagnostic output pin, enabling sophisticated system monitoring and predictive maintenance.

The device operates from a wide supply voltage range, typically from 5.5 V to 28 V, ensuring compatibility with standard automotive electrical systems (12V) and truck applications (24V). Its ability to handle load-dump pulses (up to 40V) and its high resistance to electrostatic discharge (ESD) further underscore its suitability for the harsh electromagnetic environments of automobiles.

Application Overview

The TLD21313EPXUMA1 excels in a wide array of applications where multiple low-power loads need to be controlled with high reliability and diagnostic feedback.

Its primary domain is automotive body electronics. It is perfectly suited for controlling:

LEDs for interior lighting, ambient lighting, and status indicators. Its current-regulated outputs are ideal for ensuring consistent LED brightness.

Solendoids and small relays used in various actuator systems.

Heating elements for sensors or small comfort features.

Beyond automotive, the device finds significant use in industrial automation. It can drive small DC motors, actuators, and numerous sensors in PLCs (Programmable Logic Controllers) and distributed I/O modules. The diagnostic capabilities allow for advanced system health monitoring, reducing downtime in critical processes.

In summary, the Infineon TLD21313EPXUMA1 is a versatile and reliable solution that simplifies design, enhances system safety, and provides critical diagnostic intelligence for controlling a variety of low-power loads.

ICGOODFIND: The Infineon TLD21313EPXUMA1 is a robust, feature-rich triple low-side switch offering superior diagnostic capabilities and comprehensive protection, making it a top choice for demanding automotive and industrial control applications.

Keywords: Automotive Electronics, Low-Side Switch, Diagnostic Protection, Load Driver, Infineon