General Description

The PWM Type DC/DC converter for AC/DC provides an

optimal system for all products that include an electrical

outlet.

The built-in 650 V startup circuit contributes to low power

consumption. Small-sized power supplies can be

designed with a built-in current detection resistor for

switching. Current is restricted in each cycle and

excellent performance is demonstrated in bandwidth and

transient response since current mode control is utilized.

The switching frequency is 100 kHz by a fixed method. At

light load, the switching frequency is reduced and high

efficiency is achieved. A built-in frequency hopping

function also contributes to low EMI. A built-in 800 V

super junction MOSFET makes designs easy.

Features

 PWM Current Mode Method

 Frequency Hopping Function

 Burst Operation at Light Load

 Frequency Reduction Function

 Built-in 650 V Startup Circuit

 Built-in 800 V Super Junction MOSFET

 VCC UVLO (Under Voltage Lockout)

 VCC OVP (Over Voltage Protection)

 Over Current Detection Function per Cycle

 Over Current Detection AC Voltage Compensation

Function

 Soft Start Function

 External Latch Function

 X Capacitor Discharge Function