Saving power in LED lighting designs
To help shorten ‘time-to-light’, lower component counts and reduce operational and standby power consumption, a multi-mode flyback controller IC for LED applications has been introduced Infineon Technologies. Designed to meet the performance and efficiency demands of mid-range to high end LED designs, the IRS2982S provides a controller solution that can meet the needs of a variety of interior, outdoor, office and industrial lighting schemes.
The IRS2982S incorporates a 600V high voltage start-up cell that delivers a ‘time-to-light’ of less than 0.5s. At the same time, it eliminates the need for external components for voltage division. Configurable Critical Conduction Mode (CrCM) and Discontinuous Current Mode (DCM) operation ensure compatibility with a range of application requirements.
They make the device suitable for dimming LED converter designs across the full current range. The key application of the IRS2982S is the isolated flyback with CV (constant voltage) mode which opens up design flexibility in other topologies, such as non-isolated flyback with CC/CV, buck, boost and SEPIC (single ended primary inductor converter).
Designed to keep power consumption to a minimum, the IRS2982S features a burst mode capability that ensures ultra low standby power. The device operates from a wide input voltage range of 85V AC to 305V AC and incorporates over voltage and over-current protection as standard. An optimised single stage PFC/flyback design ensures a power factor of higher than 0.9 and a low THD of below 20%.
Featured products
MAX17793
Analog Devices Inc.
3V to 80V, 3A, High-Efficiency, Synchronous Step-Down DC-DC Converter
| SKU: | MAX17793 |
|---|---|
| Stock: | 9316 |
| Cost: | $3.64 |
MAX22516
Analog Devices Inc.
IO-Link Data Link Controller with Transceiver and Integrated DC-DC
| SKU: | MAX22516 |
|---|---|
| Stock: | 8000 |
| Cost: | $5.42 |
