The Infineon Reference board ILD8150 80V high-side buck LED driver IC with hybrid dimming. This reference design board features ILD8150E, a 80V LED driver IC with an innovative hybrid dimming method. The LED driver IC provides a high safety voltage margin, especially for applications operating close to safety extra low voltage (SELV) limits. Several performance and protection features provide the right fit for professional LED lighting. The reference design of ILD8150E comes with hysteretic current control, which is extremely fast and always stable without the need for any loop compensation. Additionally it provides flexibility to be used up to 1A with a short duty cycle.

Over temperature protection
PG-DSO-8 package with exposed pad
Under voltage lockout
Very low LED current drift over temperature
Typical ±3% output current accuracy
PWM dimming input up to 20kHz
Digital soft-start
Up to 2MHz switching frequency
Frequency range is 300 – 600kHz
Capable to provide output current up to 1A
Wide input voltage range from 8 to 80V

In range of 12.5 to 100 percent ILD8150E operates in analog dimming mode, in 0.5 to 12.5 percent in hybrid mode with fixed output frequency. Hybrid mode dimming helps to minimize LED colour shift and audible noise. ILD8150E provides high accuracy over al