LED Drivers for Interior Lighting
Using LEDs in automotive lighting applications, delivers faster turn-on time, higher reliability and resistance to shock and vibration, and lower heat dissipation and power consumption, compared to incandescent bulbs.
Circuits using LEDs require a constant current flow, to maintain consistent brightness. Pulse-width-modulation to control dimming features is also frequently desired in today's market. Standard LED driver components can meet these needs in cost-effective, small form factors.
ON Semiconductor's NUD4001 LED driver maintains a constant current up to 350 mA, delivering improved accuracy, with the use of a single active component. The device tolerates input voltages up to 60 V, and maintains a constant light output during battery drain. Dimming features in lighting subsystems can be easily implemented by modulating a control signal.
ON Semiconductor is developing additional LED drivers that deliver constant currents of up to 2 A. In addition, ON offers switching regulators which can also control LED circuits.
For dome lights and other interior lights, tail lights, and directional lights using LEDs as the light source, ON Semiconductor's LED driver components deliver constant brightness and dimming control, with standard components that can reduce parts count and increase reliability.