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SY5814A - Single Stage Buck PFC Controller

General Description

The SY5814A is a single stage Buck PFC controller targeting at LED lighting applications.

It drives the Buck converter in the quasi-resonant mode to achieve higher efficiency.

It keeps the Buck converter in constant on time operation to achieve high power factor.

Key Features

  • Ordering Information SY5814.
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  • Temperature Code Package Code Optional Spec Code Temperature Range: -40°C to 105°C Ordering Number Package type Note SY5814AABC SOT23-6 ----.
  • Valley turn-on of the MOSFET to achieve low switching losses.
  • 0.3V current sense reference voltage leads to a lower sense resistance thus a lower conduction loss.
  • Internal high current MOSFET driver: 0.25A sourcing and 0.5A sinking.
  • Low start up curren.

📥 Download Datasheet

Datasheet Details

Part number SY5814A
Manufacturer Silergy
File Size 536.98 KB
Description Single Stage Buck PFC Controller
Datasheet download datasheet SY5814A Datasheet

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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Application Notes:SY5814A Single Stage Buck PFC Controller For LED Lighting Preliminary datasheet General Description The SY5814A is a single stage Buck PFC controller targeting at LED lighting applications. It drives the Buck converter in the quasi-resonant mode to achieve higher efficiency. It keeps the Buck converter in constant on time operation to achieve high power factor. Features Ordering Information SY5814 □(□□)□ Temperature Code Package Code Optional Spec Code Temperature Range: -40°C to 105°C Ordering Number Package type Note SY5814AABC SOT23-6 ---- • Valley turn-on of the MOSFET to achieve low switching losses • 0.3V current sense reference voltage leads to a lower sense resistance thus a lower conduction loss. • Internal high current MOSFET driver: 0.25A sourcing and 0.