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FT838RNA - Low-Power Off-Line CC/CV Switch

Download the FT838RNA datasheet PDF. This datasheet also covers the FT838NB variant, as both devices belong to the same low-power off-line cc/cv switch family and are provided as variant models within a single manufacturer datasheet.

General Description

The FT838NB/FT838RNA controller device is optimized for high-performance, low power switching mode power supply applications.

Key Features

  • Constant-Current (CC) and Constant-Voltage (CV) with Primary Side Control.
  • Proprietary technology enabling high efficiency and fast dynamic response.
  • No audible noise over entire operating range.
  • Built-in power NPN.
  • Built-in Cable Compensation.
  • Built-in Line Compensation.
  • Primary-side feedback eliminates opto-coupler and TL431.
  • Cycle-by-Cycle Current Limiting.
  • Over Temperature Protection.
  • VCC Over Voltage Protection.
  • Open Circuit Protection.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (FT838NB-FremontMicroDevices.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number FT838RNA
Manufacturer Fremont Micro Devices
File Size 374.60 KB
Description Low-Power Off-Line CC/CV Switch
Datasheet download datasheet FT838RNA Datasheet

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Other Datasheets by Fremont Micro Devices

Part Number Description
FT838NB Low-Power Off-Line CC/CV Switch
FT833A11-GB High Precision PSR Constant Current LED Driver
FT833A11-GT High Precision PSR Constant Current LED Driver
FT833A11-RB High Precision PSR Constant Current LED Driver
FT833A11-RT High Precision PSR Constant Current LED Driver

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.

View original datasheet text
Fremontmicro USA Use Only Fremont Micro Devices FT838NB/FT838RNA Low-Power Off-Line CC/CV Switch FEATURES  Constant-Current (CC) and Constant-Voltage (CV) with Primary Side Control  Proprietary technology enabling high efficiency and fast dynamic response  No audible noise over entire operating range  Built-in power NPN  Built-in Cable Compensation  Built-in Line Compensation  Primary-side feedback eliminates opto-coupler and TL431  Cycle-by-Cycle Current Limiting  Over Temperature Protection  VCC Over Voltage Protection  Open Circuit Protection TYPICAL APPLICATION  Adapter/Charger for Cell/Cordless Phones, PDAs, MP3 and Other Portable Apparatus  Standby and Auxiliary Power Supplies Set Top Boxes (STB)  AC/DC LED Driver applications DESCRIPTION The FT838NB/FT838RNA contr