Download the OB2269C datasheet PDF.
This datasheet also covers the OB2269C-On variant, as both devices belong to the same current mode pwm controller family and are provided as variant models within a single manufacturer datasheet.
General Description
OB2269C is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flyback converter applications.
PWM switching frequency at normal operation is externally programmable and trimmed to tight range.
Key Features
On-Bright Proprietary Frequency Shuffling Technology for Improved EMI Performance.
Extended Burst Mode Control For Improved Efficiency and Minimum Standby Power Design.
Audio Noise Free Operation.
External Programmable PWM Switching
Frequency.
Internal Synchronized Slope Compensation.
Low VIN/VDD Startup Current(6.5uA) and Low
Operating Current (2.3mA).
Leading Edge Blanking on Current Sense Input.
Complete Protection Coverage With Auto Self-
Recovery o E.
Note: The manufacturer provides a single datasheet file (OB2269C-On-BrightElectronics.pdf) that lists specifications for multiple related part numbers.
Full PDF Text Transcription for OB2269C (Reference)
Note: Below is a high-fidelity text extraction (approx. 800 characters) for
OB2269C. For precise diagrams, and layout, please refer to the original PDF.
OB2269C GENERAL DESCRIPTION OB2269C is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flybac...
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high performance, low standby power and cost effective offline flyback converter applications. PWM switching frequency at normal operation is externally programmable and trimmed to tight range. At no load or light load condition, the IC operates in extended ‘burst mode’ to minimize switching loss. Lower standby power and higher conversion efficiency is thus achieved. VDD low startup current and low operating current contribute to a reliable power on startup design with OB2269C. A large value resistor could thus be used in the startup circuit to minimize the standby power.
OB2269C Datasheet
