The LM3447 is a versatile power factor correction (PFC) controller designed for residential and commercial phase-cut dimmer compatible LED lamp drivers. It features a primary side control technique with input voltage feedforward to regulate LED power and achieve line regulation. The device includes an integrated phase angle decode for 50:1 dimming range, valley switching for high efficiency, and thermal foldback for LED protection.
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| Input Voltage (Min) | 7.5V |
| Input Voltage (Max) | 17.5V |
| Output Voltage (Max) | 60V |
| Output Current (Max) | 2A |
| Topology | Flyback |
| Operating Temperature Range | -40 to 125°C |
| Iq (typ) | 1.6mA |
| RoHS | Compliant |
| REACH | Affected |
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