SF5877中文资料PSR控制器数据手册SiFirst规格书

描述 Description

Offline AC/DC fly-back converter forAC/DC adaptersOpen-frame SMPSSet-top box power suppliesATX standby power

特性 Features

Easily Meet EPS Level 6
Proprietary QR-||TM Technology: Digital Anti-jitter for Audio Noise Free Operation, Digital Frequency Foldback, Digital Frequency Jittering for Better EMI
Proprietary HV-mWTM to Achieve Less than 50mW Standby Power
Multi-Mode Operation for High Efficiency
12.7us Maximum Duty Cycle.
80KHz Maximum On Time
53KHz Frequency Low Clamping in QR Mode
65% Maximum Duty Cycle
Adaptive Slope Compensation for CCM Mode
Built-in synchronous slope compensation
Constant power limiting

应用 Application

Offline AC/DC fly-back converter for
• AC/DC adapters
• Open-frame SMPS
• Set-top box power supplies
• ATX standby power