TLD5098ELXUMA1

The TLD5098ELXUMA1 from Infineon Technologies is a versatile DC/DC boost controller with integrated diagnosis and protection features, specifically designed for driving LEDs. It supports multiple topologies including Boost, Buck, Buck-Boost, SEPIC, and Flyback by adjusting external components.

This controller operates with an input voltage range of 4.5V to 45V and offers a flexible switching frequency adjustable from 100 kHz to 500 kHz, or synchronization with an external clock. It supports both analog and PWM dimming for precise LED current control. The device includes an enable function that reduces shutdown current consumption to less than 10 µA.

Designed for harsh automotive environments, the TLD5098ELXUMA1 is housed in a 14-pin PG-SSOP-14 package with an exposed pad for enhanced thermal performance. It features integrated protection and diagnostic functions such as open circuit detection, output overvoltage protection, short to GND protection, and overtemperature shutdown.

Key features include its ability to drive a low-side n-channel power MOSFET from an internal 5V linear regulator, a 300mV high-side current sense, and an integrated soft-start feature to limit current peaks and voltage overshoot during startup. Its suitability for automotive exterior and interior lighting, general illumination, and general-purpose current/voltage controlled DC/DC driver applications makes it a robust choice for demanding designs.