EM8557A PDF File ( Datasheet )

EM8557A HV Start-up Green-mode PWM Convertor with Brown-Out Protection General Description EM8557A is a high performance, low cost, HV Start-up, current mode PWM controller with green mode power saving. The EM8557A integrates functions of Soft Start (SS), Under Voltage Lockout (UVLO), Leading Edge Blanking (LEB), internal Over Temperature Protection (OTP), and internal slope compensation. The EM8557A also features more protection like Over Load Protection (OLP) and Over Voltage Protection (OVP)