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OB5282A - High Voltage Green Mode PWM Controller

Download the OB5282A datasheet PDF. This datasheet also covers the OB5282A-On variant, as both devices belong to the same high voltage green mode pwm controller family and are provided as variant models within a single manufacturer datasheet.

General Description

OB5282A is a highly integrated current mode PWM control IC with high voltage startup, optimized for high performance, low standby power consumption and cost effective offline flyback converter applications.

Key Features

  • with short startup time and low standby power loss. OB5282A offers complete protection coverage including cycle-by-cycle current limiting (OCP), over load protection (OLP), over temperature protection (OTP), output and VDD over voltage protection. Excellent EMI performance is achieved with On-Bright proprietary frequency shuffling technique. The tone energy at below 25KHz is minimized to avoid audio noise during operation. OB5282A is offered in SOP8 package.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (OB5282A-On-Bright.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number OB5282A
Manufacturer On-Bright
File Size 755.50 KB
Description High Voltage Green Mode PWM Controller
Datasheet download datasheet OB5282A 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
OB5282A High Voltage Green Mode PWM Controller with Brownout GENERAL DESCRIPTION OB5282A is a highly integrated current mode PWM control IC with high voltage startup, optimized for high performance, low standby power consumption and cost effective offline flyback converter applications. The controller ‘s HV pin is used for high voltage startup, AC off detection, and X-cap Voltage discharge , this structure allows the brownout detection as well. At full loading, the IC operates in fixed frequency (65KHz) mode. When the loading goes low, it operates in Green mode with valley switching for high power conversion efficiency. When the load is very small, the IC operates in ‘Extended Burst Mode’ to minimize the standby power loss.