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LM3450 LED Drivers

LM3450 Description

LM3450 LM3450A LED Drivers with Active Power Factor Correction and Phase Dimming Decoder LM3450 LM3450A June 20, 2011 LED Drivers with Active Power.
The LM3450/50A is a power factor controller (PFC) with separate phase dimming decoder.

LM3450 Features

* The input-output mapping is programmable for design flexibility, while a dynamic filter and variable sampling rate provide smooth uniform dimming. A dynamic hold circuit ensures that the phase dimmer angle is decoded properly while minimizing extra power loss. The LM3450A is identical to the LM3450

LM3450 Applications

* for each. The following is a general guideline for choosing the correct device:
* Any 120V designs with POUT > 15W - LM3450A
* Any 230V designs with POUT > 25W - LM3450A
* 120V 2-Stage designs with POUT < 15W - LM3450
* 230V 2-Stage designs with POUT < 25W - LM3450 F

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LED Drivers National Semiconductor
National Semiconductor LM3450-like datasheet