RS2336SP - 700V High Voltage Quasi-Resonant Fly-back PWM Controller - PTC 数据手册 ( 数据表 )

DESCRIPTION
RS2336 is a highly performance offline 700V high voltage start up Quasi-Resonant (QR) controller for low power fly-back converter applications. RS2336 features multiple modes for controlling power conversion that are designed to achieve maximum efficient across a wide range of loads. At normal load condition, it operates in QR mode with minimum drain voltage switching. It operates in PFM mode for high power conversion efficiency at light load condition. When the loading is very small RS2336 operates in Hiccup Mode to minimize the switching loss. As a result, lower standby power consumption and higher conversion efficiency is achieved.

FEATURES
• Multi-Mode Operation
   ➢ Quasi-Resonant (QR) Operation at Normal
      Loading
   ➢ Pulse Frequency Modulation (PFM)
      Operation at Light Loading
   ➢ Hiccup Mode (HM) Operation at No Loading
• 700V high voltage start up
• Low standby power（ <0.15W）
• 40KHz Minimum Frequency Limit at QR Mode
• 130KHz Maximum Frequency Limit
• Maximum On Time Limit
• Maximum and Minimum OFF time Limit
• Built-in Leading Edge Blanking
• Programmable Soft-start
• External Latch Triggering
   ➢ Rich Protections For System Reliability
      including
   ➢ VCC Under Voltage Lockout with Hysteresis
      (UVLO)
   ➢ Cycle-by-Cycle Current Limiting and Peak
      Current Protection (OCP)
   ➢ Programmable Output Over Voltage
      Protection (OVP)
   ➢ Over Loading Protection (OLP)
   ➢ Over Temperature Protection (OTP)
   ➢ VCC Over Voltage Protection
   ➢ VCC Clamp
• RoHS Compliant and 100% Lead (Pb)-Free

APPLICATIONS
Offline AC/DC Fly-back Converter for
• Power Adapter and Open-frame SMPS
• NB/DVD/Portable DVD Power Supplies
• LCD Monitor/TV/PC/Set-Top Box Power Supplies
• LED power