It is an offline AC-DC LED driver. It has TRIAC dimming capability. It is basically a low sidebuck which has valley filled PFC. It takes an input voltage of 120V AC. This circuit usesLM3445 which is an adaptive constant off-time AC/DC buck (step-down) constant current controller designed to be compatible with Traic dimmers.
Download the bill of materials for PMP7770 | Download |
Title | Updated | Type | Size (KB) | |
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PMP7770 BOM | 09 Jan 2012 | 96 | ||
PMP7770 Schematic | 09 Jan 2012 | 169 |