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OB2354 - Current Mode PWM Power Switch

Download the OB2354 datasheet PDF. This datasheet also covers the OB2354-On variant, as both devices belong to the same current mode pwm power switch family and are provided as variant models within a single manufacturer datasheet.

General Description

OB2354 combines a dedicated current mode PWM controller with a high voltage power MOSFET.

It is optimized for high performance, low standby power, and cost effective off-line flyback converter applications in sub 20W range.

Key Features

  • Power on Soft Start Reducing MOSFET Vds Stress.
  • Frequency shuffling for EMI.
  • Extended Burst Mode Control For Improved Efficiency and Minimum Standby Power Design.
  • Audio Noise Free Operation.
  • Fixed 50KHZ Switching Frequency.
  • Internal Synchronized Slope Compensation.
  • Low VDD Startup Current and Low Operating Current.
  • Leading Edge Blanking on Current Sense Input.
  • Good Protection Coverage With Auto Self- Recovery o VDD Over Voltage Clamp and Under Volta.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (OB2354-On-BrightElectronics.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number OB2354
Manufacturer On-Bright
File Size 312.81 KB
Description Current Mode PWM Power Switch
Datasheet download datasheet OB2354 Datasheet

📁 Similar Datasheet

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OB2358 Built-in high voltage MOSFET current-mode PWM controller TGS
OB2305 High Precision CC/CV Primary-Side Controller On-Bright

Other Datasheets by On-Bright

Part Number Description
OB2353 Low Power Off Line SMPS Switcher
OB2358 Current Mode PWM Power Switch
OB2358L Current Mode PWM Power Switch
OB2301W High Performance synchronous rectifier
OB2333 High Performance Current Mode PWM Power Switch

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
OB2354 Current Mode PWM Power Switch Freq Shuffling GENERAL DESCRIPTION OB2354 combines a dedicated current mode PWM controller with a high voltage power MOSFET. It is optimized for high performance, low standby power, and cost effective off-line flyback converter applications in sub 20W range. OB2354 offers complete protection coverage with automatic self-recovery feature including Cycle-byCycle current limiting (OCP), over load protection (OLP), VDD over voltage clamp and under voltage lockout (UVLO). Excellent EMI performance is achieved with On-Bright proprietary frequency shuffling technique together with soft switching control at the totem pole gate drive output. The tone energy at below 20KHZ is minimized in the design and audio noise is eliminated during operation.