SP2637AF is a high perfomance offline PSR powe¥☆∏φr switch for low power AC/DC±λ‍​ charger and adapter applica±δ≈tions. It operates in primary-side sensing≈ ¥¥ and regulation.Thus, opto-couple'λ≠πr and TL431 are not required. In CC control, t<≈he output current and power s☆​ $etting can be adjusted extemally by the se↕≠ nse resistor Rcs at CS PIN. In CV cσ£×ontrol,multi-mode operations are uti♥₩σλlized to achieve high performance an✘ ≤d high efficiency. In♥≥≥  addition, good load regulation is achieve±≤≠$d by the built-in cable drop comp®≤ensation. SP2637AF operates in PFM in CC mode☆€, and it operates in PWM+PF<​♣M in CV mode with frequency ↕≤±reduction at light/medium load. T♠παhe chip consumes very low operation cu♠↓‍∏rrent. It achieves less than 75mW standby pow♠"←∞er to meet all global ener​↕$♥gy efficiency regulations. SP2637AF offers comp↑εrehensive protection coverage with auto-r​→'ecovery feature including Cycle-b"™₹↑y-Cycle current limiting, VDD overλ★≈ voltage protection (OVP),FB over volta₩≈' ge protection,load short circu±♥ δit protection, VDD under&≥' voltage lockout (UVLO), OTP etc. SP2637AF i₹₹s offered in SOP8 packages.