詳細信息
| Single Stage PFC/Flyback PWM Controller |
SN03A is a PFC controller specially designed for single stage flyback PWM control in lighting applications. It features an internal start-up timer for stand-alone applications, an analog multiplier with for power factor correction (PFC), zero current detector (ZCD) to ensure TM operation, a current sensing comparator with built-in leading-edge blanking (LEB), and a totem pole output driving external power MOSFET to achieve good reliability and EMI optimization. Features: ◆ Low Start-up Current and Operating Current ◆ Cycle-by-Cycle Current Limiting ◆ Internal Leading Edge Blanking (LEB) ◆ Analog multiplier for Power Factor Correction ◆ Internal Startup Timer for Stand-alone Applications ◆ Under Voltage Lockout (UVLO) with Hysteresis ◆ VCC over voltage protection (OVP) ◆ Transition Mode (TM) Operation ◆ Totem Pole Output with High State Clamping ◆ Audio Noise Free Operation ◆ Available in DIP8 and SOP8 packages, RoHS compliant Applications: ◆ Single Stage High PF Flyback AC/DC SMPS ◆ LED Lighting Power Typical Application: |