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SG6842J - Highly-Integrated Green-Mode PWM Controller

General Description

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.

Key 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 Voltage Protection (OVP) Programmable Over Temperature Protection (OTP) Internal Latch Circuit (OTP, OVP) Options Internal Open-loop Protection.

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Datasheet Details

Part number SG6842J
Manufacturer System General
File Size 1.35 MB
Description Highly-Integrated Green-Mode PWM Controller
Datasheet download datasheet SG6842J 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.

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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. As a result, large start-up resistance can be used. SG6842J in tegrates freq uency j ittering fun ction internally. The frequency jittering fun ction helps reduce EMI em ission of a power supply wi th minimum line filters.