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OB6683 - High Performance TM PFC/QR Combo Controller

Download the OB6683 datasheet PDF. This datasheet also covers the OB6683-On variant, as both devices belong to the same high performance tm pfc/qr combo controller family and are provided as variant models within a single manufacturer datasheet.

General Description

OB6683 integrates a transition mode power factor correction (TM PFC) controller and a QuasiResonant (QR) controller in one chip.

The PFC controller provides a cost effective solution for optimizing the power factor.

Key Features

  • many built-in green functions to optimize power conversion efficiency at all power levels. This holds for QR operation at high power levels, as well as PFM operation at lower power levels, and ‘Extended Burst Mode’ operation at very low power or zero power (Standby) levels. At low power levels, OB6683 can turn off the PFC stage. In this way, low standby together with low system cost can be achieved. The device is also integrated many functions of protection, such as X-CAP discharge, Brownin/out.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (OB6683-On-BrightElectronics.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number OB6683
Manufacturer On-Bright
File Size 485.28 KB
Description High Performance TM PFC/QR Combo Controller
Datasheet download datasheet OB6683 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.

View original datasheet text
OB6683 High Performance TM PFC/QR Combo Controller GENERAL DESCRIPTION OB6683 integrates a transition mode power factor correction (TM PFC) controller and a QuasiResonant (QR) controller in one chip. The PFC controller provides a cost effective solution for optimizing the power factor. The QR controller provides higher efficiency and lower EMI compared to conventional PWM system. OB6683 provides high level integration and high performance than conventional PFC/PWM system. The built-in TM PFC controller optimizes power conversion efficiency with reduced system cost. The intelligent PFC switching ON and OFF, zero current detection and frequency limitation mechanism enable a better efficiency under any load conditions.