[©System General Corp.]

DESCRIPTION
This highly integrated PWM controllers, SG6841 series, provides several features toenhance the performance of low power flyback converters. To minimize standby power consumption, the proprietary green-mode function provides off-time modulation to linearly decrease the switching frequency under light-load conditions. This green-mode function assists the power supply to easily meet the power conservation requirement.

FEATURES
Green-mode PWM to support “Blue Angel” Norm
Low start up current 30uA
Low operation current 3mA
Leading-edge blanking
Built-in synchronized slope compensation
  Constant output power limit for universal AC input
Current mode operation
Cycle-by-cycle current limiting
Under voltage lockout (UVLO)
Programmable PWM frequency
GATE output maximum voltage clamped at 18V
Totem pole output includes soft driving for better EMI
Build-in limited-power-control to meet safety requirement
Programmable over-temperature protection
Few external components & low cost solution

APPLICATIONS
General-purpose switching mode power supplies and flyback power converters, and
  Power Adapter
  Open-frame SMPS
  Battery Charger Adapter