SSL21081AT - Compact non-dimmable LED driver IC


Buck driver with integrated 300 V MOSFET

Power-efficient boundary conduction mode

Tight LED current regulation: better than 5%

Direct PWM dimming possible

Fast transient response via cycle-by-cycle control

No need for binning on LED forward voltage

Full set of internal protections

Simple design-in

“A” versions without short winding protection

High efficiency: up to 95% measured on reference board

Low bill of materials: only 14 components for full application

Small PCB area: reference design measures only 18 x 22 mm

Easy, low-cost manufacturing at high volumes

High reliability: IC lifetime easily matches or surpasses LED lamp lifetime

Typical Application


 The NXP SSL21081AT is a non-dimmable buck LED driver with an integrated power switch of 300 V. The SSL21081AT supports applications up to 10 W.


Retrofit LED lamps

Driver modules for LED lighting