GR8937L

GR8937L Current Mode PWM Power Switch Features Current mode PWM Very low startup current Under-voltage lockout (UVLO) Non-audible-noise green-mode control Fixed switching frequency of 65KHz Cycle-by-cycle peak current limiting Internal leading-edge blanking Internal slope compensation Less than 0.1w of power saving Over-voltage protection (OVP) on VCC Pin Over-load protection (OLP) Applications Switching AC/DC power battery charger Digital camera Open-frame SMPS PDA power supply Description GR8937L integrates a PWM controller and high voltage power MOSFET of 650V. GR8937L has the features of very low startup current and current mode PWM control with green-mode function at light load. These features enable the power supply to easily meet even the strictest power conservation requirements. The integrated functions of GR8937L also include the leading-edge blanking of the current sensing, internal slope compensation, cycle-by-cycle peak current limiting and soft start. OCP, OVP and OLP ...