NXP Semiconductors unveiled a dimmable single-stage controller IC for retrofit MR16 LED lamps using 12 V a.c. mains.
The SSL3401 offers compatibility with a wide range of dimmers and transformers – working with over 80% of the most common combinations – in a compact form factor that fits in all commonly available MR16 GU5.3 and AR111 housings and sockets.
Supporting an ambient temperature range up to 105°C, the device also provides temperature rollback protection. Based on NXP GreenChip technology, it generates a stable and accurate current while dimming down to below 5% of maximum light output in most common practical situations.
While maximum lamp power depends on the thermal design of the lamp, a typical 7 W MR16 LED lamp using the SSL3401 achieves THD below 15%, power factor above 0,9, efficiency up to 78% and LED ripple current below ±10%.
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