General Description

This series IC is a PWM type DC/DC converter for

AC/DC which provides an optimum system for various

electrical product. It supports both isolated and

non-isolated devices, enabling simpler design of

various types of low power consumption electrical

converters.

This series also has a built-in starter circuit that can

withstand up to 730 V, which contributes to low power

consumption. Since current mode control is utilized,

current is restricted in each cycle and excellent

performance is demonstrated in bandwidth and

transient response. Switching frequency is fixed at 65

kHz, 100 kHz or 130 kHz. At light load, the switching

frequency is reduced and high efficiency is achieved. A

frequency hopping function is also built-in, which

contributes to low EMI. In addition, this product has a

built-in super junction MOSFET which has a withstand

voltage of 730 V.

Features

Switching Frequency = 65 kHz, 100 kHz, 130 kHz

PWM Current Mode Control

Built-in Frequency Hopping Function

Burst Operation at Light Load

Frequency Reduction Function

Built-in 730 V Starter Circuit

Built-in 730 V Super Junction MOSFET

VCC Pin Under Voltage Protection

VCC Pin Over Voltage Protection

Over Current Limiter Function per Cycle

Over Current Limiter with AC Voltage Correction

Soft Start Function

Brown IN/OUT Function

Highly Precise AC Over Voltage Protection

ZT Pin OVP Function

Applications

Household Electrical Appliances, Adapters, etc.