PMP7770 Reference Design

Texas Instruments

120V AC input and 24.5V output LED Driver

Description

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.

Features
Applications
Product Categories
  • Power management

Parts

Part Number Name Companion Part
LM3445 LM3445 Buy Datasheet

Bill Of Materials

Download the bill of materials for PMP7770 Download

Other Documents

Title Updated Type Size (KB)
PMP7770 BOM 09 Jan 2012 PDF 96
PMP7770 Schematic 09 Jan 2012 PDF 169