The Analog Devices MAX16802BEUA+ is an AC DC offline switcher controller designed for LED backlight and general lighting applications. It supports multiple topologies — flyback, SEPIC, step-down (buck), and step-up (boost) — so the same controller can be reused across different power-stage architectures in a lighting product line. The switching frequency is fixed at 262 kHz, which is a practical middle ground: high enough to keep the magnetics small, low enough that layout and snubber design stay manageable for an 8-pin MSOP package.
Dimming and control — Analog and PWM
The controller accepts both analog and PWM dimming inputs. That means a single BOM can serve constant-current reduction (analog) and burst-mode dimming (PWM) without a second controller. The dimming method is selected by the external circuit, not hard-wired inside the part — a useful flexibility when the same PCB must work across multiple luminaire families.
Supply and temperature range
Supply voltage runs from 10.8 V to 24 V, which covers the typical DC bus after a bulk capacitor in offline flyback or buck designs. That puts it solidly in industrial and commercial lighting: outdoor LED drivers, sign lighting, architectural fixtures, and indoor troffers where the ambient inside the enclosure stays below 85°C.