Automotive Power
Buck Converter LED Drivers for Automotive Applications
Application diagram of TLD 5085 as LED driver (constant current mode)
TLD 5085EJ is a smart LED buck converter with an integrated power switch capable of driving up to 1.8A load current with excellent line and load regulation. This device is primarily aimed at stepping down input voltage and regulating a constant LED current. The constant current regulation is especially beneficial for LED color accuracy and longer lifetimes. This IC is ideal for use in harsh automotive environments and provides protection functions such as current limitation and overtemperature shutdown. The integrated soft-start feature prevents current and voltage overshoot at output when the device is started up.
- Pulse-width modulation input for LED dimming and enable input pin
- Automotive temperature range from -40°C to 150°C
- 370kHz switching frequency
- Typical output voltage: Vbat –1V
- Integrated power stage
- Adjustable up to 1.8A constant current
- Input voltage range from 4.75V to 45V
- PG-SO8 package with exposed heatslug
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