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LD7831 - High Power Factor Primary Side Flyback LED Controller

General Description

The LD7831 is a high power factor primary side Flyback LED controller with HV start-up, specially designed for LED lighting.

The LD7831 provides constant current (CC) operation requiring neither photo-coupler nor secondary control circuit.

It minimizes the components counts in a SOP-7.

Key Features

  • High Voltage (700V) Startup Circuit.
  • High Power Factor Flyback Primary Side PFC Con.

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Datasheet Details

Part number LD7831
Manufacturer Leadtrend Technology
File Size 494.66 KB
Description High Power Factor Primary Side Flyback LED Controller
Datasheet download datasheet LD7831 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LD7831 04/14/2014 High Power Factor Primary Side Flyback LED Controller With HV Start-up REV: 00 General Description The LD7831 is a high power factor primary side Flyback LED controller with HV start-up, specially designed for LED lighting. The LD7831 provides constant current (CC) operation requiring neither photo-coupler nor secondary control circuit. It minimizes the components counts in a SOP-7. Those make it easy to design for cost- effective applications. With HV start-up technology, high power factor and TM control, the start-up time and resistor loss could be minimized efficiently. The circuit can easily achieve PF>0.90 to meet most of the international standard requirements.