Part SGP400
Description Low-Power Green-Mode PWM Flyback Power Controller
Manufacturer Fairchild Semiconductor
Size 1.17 MB
Fairchild Semiconductor
SGP400

Overview

This highly integrated PWM controller provides several features to enhance 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 and zero-load conditions.

  • Linearly decreasing PWM frequency
  • Green-mode under light-load and zero-load conditions
  • Constant voltage (CV) and constant current (CC)
  • No secondary feedback
  • Low start-up current (8µA)
  • Low operating current (3.6mA)
  • Leading-edge blanking
  • Constant power limit
  • Universal AC input range
  • Synchronized slope compensation