SG6842J - Highly-Integrated Green-Mode PWM Controller
The hi ghly i ntegrated S G6842J se ries of P WM controllers provides se veral feat ures t o enhance t he performance of flyback converters.
To m inimize standby p ower co nsumption, a proprietary green-mode fun ction pro vides of f-time modulation t o co ntinuously dec rease t he swi tching TYPICA
Product Specification Highly-Integrated Green-Mode PWM Controller SG6842J frequency at l ight-load co nditions.
To a void acoustic-noise p roblem, t he m inimum PWM frequency set abo ve 20kHz.
T his green-mode f unction e nables t he power supp ly to easily meet in ternational power conservation r equirements.
To further re duce p ower consumption, SG 6842J is m anufactured by usi ng the BiCMOS process.
This allows the lowest start-up current around 8uA, and the operating current is only 4mA.
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SG6842J Features
* Green-mode PWM Controller Low Start-Up Current (8uA) Low Operating Current (4mA) Programmable PWM frequency with Jittering Peak-current-mode Operation Cycle-by-Cycle Current Limiting Synchronized Slope Compensation Leading-Edge Blanking Constant Output Power Limit (Full AC Input Range) VDD Over Volt
