High Voltage LED Dimmable Driver Eliminates the Need for AC-DC Power Supplies

LSI/CSI has announced the availability of the High Voltage LED Dimmable Driver IC. Designated LS9100, this IC has a design optimized for driving LED banks directly from the main utility line which eliminates the previously required AC-DC Power Supplies formerly used to drive LEDs.

According to Pete Visconti, VP of sales & marketing, the LS9100 has integrated a full bridge rectifier, current limiter source protection circuit, built-in thermal protection feature centrally located in the device that protects the IC from operating in atypical conditions, and a voltage shutdown circuit which safeguards the IC and the system’s LEDs from line voltage surges that can overstress the system, all on a single IC. By merging these features into an IC, the LS9100 enables luminary designers to make LED luminaries with designs that are unconstrained by the size and bulk of the previously required Power Supply.

The LS9100 allows the design of Light Engines and Fixtures with higher luminosity.

LS9100 Features Include:

• Integrated MOSFET Driver
• Vin up to 310 Vac
• 50mA DC output current
• Thermal Turndown Protections
• High Voltage Shutdown Protections
• Thermal Enhanced 8-Pin SOIC Heat Sink PAD

LS9100 Applications:

• LED Driver
• Current Source Limiter
• General Illumination
• Industrial Lighting