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NCP1622GEVB: 160-W, Wide Mains, PFC Stage Driven by the NCP1622

The NCP1622 Evaluation Board implements a complete 160W/390 Vdc nominal Power Factor Correction Stage and operates from 90-265 Vac. The board illustrates a low profile (<13 mm height) that might be used in a flat TV or All-in-One PC Application. The target efficiency and power factor at full load for this board is >95% with a PF > 0.95 and meets EN61000-3-2 Class C and Class D requirements.

The NCP1622 is active power factor corrected (PFC) controller specifically designed for use as a boost pre-converter in ac-dc adapters, flat TVs, lighting ballasts and other medium powered offline applications. The controller is based on an innovative Valley Synchronized Frequency Fold-back (VSFF) method. In this mode, the circuit classically operates in Critical conduction Mode (CrM) when the inductor current exceeds a programmable value. When the current is below this preset level, the NCP1622 linearly reduces the frequency down to about 20 kHz when the current is at a null. VSFF maximizes the efficiency at both nominal and light load. In particular, the standby losses are reduced to a minimum. The controller features a robust suite of protection features to properly handle an array of power supply operating and fault conditions.
Evaluation/Development Tool Information
Product Status Compliance Short Description Parts Used Action
NCP1622GEVB Active
Pb-free
160-W, Wide Mains, PFC Stage Driven by the NCP1622 NCP1622AEASNT1G NCP1622BCCSNT1G
NCP1622BECSNT1G
Technical Documents
Type Document Title Document ID/Size Rev
Eval Board: BOM NCP1622GEVB Bill Of Materials (ROHS Compliant) NCP1622GEVB_BOM_ROHS - 227 KB  2 
Eval Board: Gerber NCP1622GEVB Gerber Layout Files (Zip Format) NCP1622GEVB_GERBER - 1722 KB  1 
Eval Board: Schematic NCP1622GEVB Schematic NCP1622GEVB_SCHEMATIC - 66 KB  1 
Eval Board: Test Procedure NCP1622GEVB Test Procedure NCP1622GEVB_TEST_PROCEDURE - 294 KB  1 
Video 160-W, Wide mains, PFC Stage Driven by the NCP1622 Evaluation Board - NCP1622GEVB WVD17644/D   
Eval Board: Manual NCP1622GEVB User Manual NCP1622GEVB_User_Manual - 1453 KB  0 
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160-W, Wide mains, PFC Stage Driven by the NCP1622 Evaluation Board - NCP1622GEVB
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