General Description
The LD7765 is a Green Mode PWM IC, featuring X-cap
discharge functions to reduce the discharge resistor loss
in less component counts.
The LD7765 provides HV start-up, green-mode
power-saving operation, internal slope compensation and
Soft-start functions which could minimize the power loss
and enhance the system performance.
With complete protection as OLP/ OVP/ OTP and
brown-in/out, this chip prevents the circuit from being
damaged in abnormal conditions

Features
 High-Voltage (500V) Startup Circuit on HV pin
 Brown-in/out Function on HV pin
 X-Cap Discharge function on HV pin
 Frequency Trembling for EMI improve
 Green Mode Control for Power Saving
 Current Mode control with Slope Compensation
 OVP (Over Voltage Protection) on Vcc
 OLP (Over Load Protection)
 OTP (Over temperature protection)
 Soft Start
 Soft Driving
 +500mA/-800mA Driving Capability

Applications
 Switching AC/DC Adaptor and Battery Charger
 Open Frame Switching Power Supply
 LCD Monitor/TV Power