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Green mode PWM Flyback Controller
EM8631
General Description
EM8631 is a high performance, low startup current, low cost, current mode PWM controller with green mode power saving. The EM8631 integrates functions of Soft Start(SS), Under Voltage Lockout(UVLO), Leading Edge Blanking(LEB), internal Over Temperature Protection(OTP), internal slope compensation. The EM8631 also features more protection like Over Load Protection(OLP) and Over Voltage Protection(OVP) to prevent circuit damage occurred under abnormal conditions.
The EM8631 provides the users a superior AC/DC power application of high efficiency, excellent EMI performance, low external component counts and lower cost solution.
Features
Ultra Low Start Up Current (6uA) Current Mode Control Soft Start Function Built-in Slope Compensation Internal Leading-edge Blanking UVLO Over Voltage Protection (OVP) on VDD pin Over Load Protection (OLP) Cycle-by-cycle Current Limit Feedback Open Protection Internal Over Temperature Protecti.