NXP Semiconductors N.V. (NASDAQ: NXPI), a provider of High Performance Mixed Signal and Standard Product solutions, introduced the SSL21101, the first in a new family of GreenChip™ LED driver ICs featuring Smart Digital Control (SDC) technology. SSL21101 integrates intelligent digital control within a compact analog design and delivers better, more accurate system performance while reducing the bill of materials, providing an ideal solution for non-dimmable, high-performance LED applications up to 15W.

The SSL21101 is a single-stage solution designed to drive LED devices in flyback or buck-boost configurations with very high efficiency – up to 90% depending on the application – and with highly accurate control of the output current. In the SSL21101, the Smart Digital Control feature offers two modes optimized for specific regional regulatory requirements. In High Power Factor mode, the PF rating is higher than 0.95 and the total harmonic distortion (THD) is limited to under 20%. The Low Ripple mode lowers the LED current ripple below 1% and makes it possible to use smaller electrolytic capacitors, enabling very compact designs.

Features
•Non-dimmable LED driver powering up to 15W from 100V to 230V (universal mains)
•Smart Digital Control with two modes: High Power Factor (>0.95) and Low Ripple (<1%)
•Integrated 700V MOSFET
•Efficiency of up to 90% depending on the application
•Primary side sensing (no optocoupler required)
•True current source behavior, independent of mains voltage, LED voltage, temperature and coil variations
•Better than 3% current accuracy
•Extensive set of internal protections, including short-winding protection, internal over-temperature protection (OTP), LED short protection, LED open protection, and undervoltage lockout protection (UVLO)
•NTC input pin to limit the maximum LED temperature
•SO14 package