The EM8564A is a high-performance, low-cost, high voltage startup, current mode PWM controller with green mode power saving. It integrates Soft Start (SS), Under Voltage Lockout (UVLO), Leading Edge Blanking (LEB), Internal Over Temperature Protection (OTP), Internal Slope Compensation, Overload Protection (OLP), and Overvoltage Protection (OVP), which can prevent circuit damage from occurring under abnormal conditions.

Product features:

• 650V high voltage start-up circuit

• Current Mode Control

• Soft start function

• Built-in slope compensation

• Internal leading edge blanking

• Input/output protection

• Over Voltage Protection (OVP) on VCC pin

• Overload Protection (OLP)

• Cycle-by-cycle current limit

• Feedback open circuit protection

• Internal Over Temperature Protection (OTP)

• Constant output power limit (full AC input range)

• Excellent EMI performance