LM3445
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Краткое описание:
TRIAC Dimmable Offline LED Driver, 80-277 VAC, 1A+ Current Control
Дополнительная информация
The LM3445 is an adaptive constant off-time AC/DC buck (step-down) constant current controller designed to be compatible with TRIAC dimmers. It includes a TRIAC dim decoder that allows wide-range LED dimming and a bleeder circuit to ensure proper TRIAC operation by allowing current flow while the line voltage is low. It features a passive PFC circuit to ensure good power factor and provides a constant positive voltage to the buck regulator.
| RoHS | Compliant |
| REACH | Affected |
| Topology | Buck, Flyback |
| Output Current | > 1A |
| Number of Channels | 1 |
| Input Voltage (Max) | 277VAC |
| Input Voltage (Min) | 80VAC |
| Operating Temperature Range | -40 to 125°C |
| Quiescent Current (Typical) | 2mA |
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