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2017-2018 產品型錄下載

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Low-Cost Green-Mode PWM controller for Flyback Converters
產品環境效益說明

This highly integrated PWM controller provides several special enhancements designed to meet the low standby-power needs of low-power SMPS. 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 enables the power supply to meet even the strictest power conservation requirements.

To protect the external power MOSFET from being damaged by supply over voltage, the SG6859A’s output driver is clamped at 17V. SG6859A controllers can be used to improve the performance and reduce the production cost of power supplies. The best choice for replacing linear and RCC-mode power adapters, The SG6859A is available in 8-pin DIP and 6-pin SOT-26 packages.

Features

  • Green-Mode PWM
  • Supports the “Blue Angel” Standard
  • Low Start-up Current: 9_A
  • Low Operating Current: 3mA
  • Leading-Edge Blanking
  • Constant Output Power Limit
  • Universal Input
  • Built-in Synchronized Slope Compensation
  • Current-mode Operation
  • Cycle-by-cycle Current Limiting
  • Under-Voltage Lockout (UVLO)
  • Programmable PWM Frequency with Frequency Hopping
  • VDD Over-Voltage Protection (Auto Restart)
  • Gate Output Voltage Clamped at 17V
  • Low Cost
  • Few External Components Required
  • Small SOT-26 Package

產品效能
FAIRCHILD (TAIWAN) CORPORATION
銷售區域
產品型號
SG6859A
產品分類
其他產品
環保特性
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