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OB2262 데이타시트 PDF - On-Bright Electronics

부품번호OB2262 On-Bright
On-Bright Electronics  On-Bright
상세내역(기능)Low Power PWM Control IC
OB2262 image

GENERAL DESCRIPTION
OB2262 is a highly integrated current mode PWM control IC optimized for high performance, low
standby power and cost effective offline flyback converter applications in sub 30W range. 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.

FEATURES
■ 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 VDD Startup Current and Low Operating Current (1.4mA)
■ Leading Edge Blanking on Current Sense Input
■ Good Protection Coverage With Auto Self Recovery
o  VDD Over Voltage Clamp and Under Voltage Lockout with Hysteresis (UVLO)
o  Gate Output Maximum Voltage Clamp (18V)
o  On-Bright Proprietary Line Input Compensated Cycle-by-Cycle Over-current Threshold Setting
For Constant Output Power Limiting Over Universal Input Voltage Range.
o  Overload Protection (OLP).

APPLICATIONS
Offline AC/DC flyback converter for
■ Battery Charger
■ Power Adaptor
■ Set-Top Box Power Supplies
■ Open-frame SMPS
OB2262


 
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