OB2203, OB2203_On - Quasi-Resonant Flyback PWM Controller

On-Bright Electronics

The OB2203 by On-Bright Electronics is a Quasi-Resonant Flyback PWM Controller. Below is the official datasheet preview.

Datasheet Details

Part number	OB2203, OB2203_On
Manufacturer	On-Bright Electronics
File Size	424.46 KB
Description	Quasi-Resonant Flyback PWM Controller
Datasheet	OB2203_On-BrightElectronics.pdf
Note	This datasheet PDF includes multiple part numbers: OB2203, OB2203_On. Please refer to the document for exact specifications by model.
Additional preview pages of the OB2203 datasheet.

OB2203 is a highly integrated Quasi-Resonant (QR) controller optimized for high performance offline flyback converter applications.

Multi-Mode Operation.
Quasi-Resonant Operation at Normal Loading.
Pulse Frequency Modulation (PFM) Operation at Light Load.
Burst Mode at No Load.
Direct Control of the Power Supply of PFC Controller for Improved Standby Power at No/Light Load.
40KHz Minimum Frequency Limit at QR Mode.
130KHz Maximum Frequency Limit.
Internal Minimum T_off for Ringing Suppression.
45us Maximum On Time Limit.
Adaptive Slope Compensation.
Internal Leading Edg.

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Published: Apr 2, 2010 |