Date: 06/05/2012

LED driver IC from NXP for high power, non-dimmable lighting applications

NXP Semiconductors has announced the availability of the SSL2109 - a high-efficiency buck controller for high-power, non-dimmable LED lighting applications using non-isolated topologies.

The SSL2109 LED driver IC provides a single design platform for 100V, 120V and 230V mains input voltages and power ranges up to 25 W. This chip is designed for use with an external power switch and is the controller-only version of the SSL2108x family.

The SSL2109 provides LED retrofit lamp and driver module manufacturers with the flexibility to optimize external MOSFET selection based on cost, performance, heat dissipation, and across different power levels.

Features
1. Only 15 components required on the PCB
2. PCB area measuring 18 x 22 mm in reference designs
3. Efficiency up to 95%
4. Low electronic bill of materials (eBoM) for LED driver applications
5. LED current regulation better than 5%
6. Direct PWM dimming possible
7. A complete set of built-in protections, including LED temperature protection via an NTC temperature sensor
8. Ease of design-in and manufacturing
9. High reliability, with IC lifetime matching or surpassing LED lifetime

More information on the product can be found at http://www.nxp.com/pip/SSL2109T