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MT7990 - APFC Primary-Side-CV Switch Power Controller

Description

MT7990 is a high precision primary-side constant voltage controller while achieving power factor correction.

Both of regulations of constant voltage (CV) and current - limiting (CL) are integrated into the MT7990.

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Datasheet Details

Part number MT7990
Manufacturer Maxic Technology
File Size 181.03 KB
Description APFC Primary-Side-CV Switch Power Controller
Datasheet download datasheet MT7990 Datasheet

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Full PDF Text Transcription

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Maximizing IC Performance MT7990 APFC Primary-Side-CV Switch Power Controller DESCRIPTION MT7990 is a high precision primary-side constant voltage controller while achieving power factor correction. Both of regulations of constant voltage (CV) and current - limiting (CL) are integrated into the MT7990. MT7990 outputs constant voltage while the LED current is within the range of current limiting, it will limit the output current while the output voltage decreases as the load increases. MT7990 can adjust the working mode automatically to save efficiency and enlarge output loading range. It works under Quasi-Resonant Mode (QRM) at heavy loading, under Discontinuous Conduction Mode (DCM) at medium loading and under Pulse Frequency Mode (PFM) at light loading.
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