TLD 5085EJ & TLD 5095EL – DC/DC LED Drivers for High-Current LED Lighting

The Infineonpower LED family has two new members. Both devices are DC/DC constant-current drivers especially designed to drive automotive LEDs in interior and exterior lighting systems.

The TLD 5085EJ is a smart LED buck driver circuit that provides all active functions for a constant-current switching regulator, capable of delivering up to 1.8A load current with an integrated MOSFET.

The TLD 5095EL is a smart LED boost controller with built-in protection and diagnostic features. The main function of this device is to boost the output voltage and regulate a constant LED current. The device comes with a status pin for diagnostics.

Features

Applications

TLD 5085EJ
- Automotive-qualified DC/DC constant current buck converter
- Adjustable up to 1.8A constant current
- Integrated power stage
- Wide input voltage range from 4.75V to 45V
- 370kHz switching frequency
- PWM input for LED dimming and enable input pin
- Very small, thermally enhanced package (DSO-8 size)
TLD 5095EL
- Automotive-qualified DC/DC constant current buck converter
- High flexibility due to external powerstage
- Status pin to indicate fault conditions
- Wide input voltage range from 4.75V to 45V
- Flexible switching frequency, 100kHz to 500kHz
- Synchronization with external clock source
- PWM dimming
- Available in a small, thermally enhanced PG-SSOP-14 exposed pad package
- Works in return-to-ground, return-to-battery and sepic configurations

Automotive interior and exterior lights
LED daytime running lights
LED front lights
Highly efficient LED interior or rear lights when the converter is running in voltage mode and supplied with current