LED Drivers for Automotive Applications

ROHM Semiconductor's LED drivers offer exceptional performance solutions for passenger compartment and forward illumination applications. ROHM has expanded its range of highly integrated LED driver ICs to provide designers a variety of options. These include integrated or externally switched outputs, parallel/series control, and extensive protection and fault detection functions in small surface mount packages.

The basic operating requirement for an LED driver is to supply a constant current to LEDs in order to produce consistent lighting. Unlike other market segments, automotive applications have several stringent guidelines in regards to:

• Temperature and humidity range
• Voltage range
• Ability to withstand harsh chemicals
• Electromagnetic interference and electromagnetic compatibility
• Protection circuitry