STR-W6253D集成电路（IC）的ACDC转换器离线开关规格书PDF中文资料

STR-W6253D属于集成电路（IC）的ACDC转换器离线开关。由三垦电气株式会社制造生产的STR-W6253DAC DC 转换器，离线开关该系列是元器件级控制产品，用于构建将交流市电转换为直流电（通常电压大幅降低）的设备。集成和未集成系统主要开关元件的器件均包括在内。由于高输入输出电压比，以及此类系统中通常需要隔离，这些器件通常与外部变压器配合使用。尽管通常使用定制变压器来实现此用途，但也有许多专门用于此用途的库存产品，请参见“开关转换器，SMPS 变压器”标题。

■ General Descriptions

The STR-W6200D series products are power ICs for switching power supplies, incorporating a power MOSFET and a current-mode type PWM controller IC. The low standby power is accomplished by the automatic switching between the PWM operation in normal operation and the burst-oscillation under light load condition. The product achieves high cost-performance power supply systems with fewexternal components.

■ Features

● Current-Mode Type PWM Control

● PWM with Jittering Function

The function reduces the EMI noise and enables simplified (low-cost) EMI filters.

The jittering period is adjustable by an external capacitor.

● Auto-Standby Function

The burst-oscillation enables the low standby power.

Input Power PIN < 100mW at no load

● Built-in Startup Circuit, enabling low power consumption

● Overcurrent Protection (OCP) with Built-in Input Compensation Circuit

The function has less AC input voltage dependency.

● Overload Protection (OLP) with Built-in Delay Timer ( the delay time is adjustable by an external capacitor)

● External Latch Protection (ELP)

The function enables the latch shutdown by external signal.

● Bias-Assist Function, reducing operating VCC voltage drop

The function improves the startup operation and makes a low VCC capacitor applicable.

● Leading Edge Blanking Function

● Slope Compensation Function

● Built-in Avalanche Energy Guaranteed High-Voltage Power MOSFET

● Various Protections

Overcurrent Protection (OCP)---------------------------------- Pulse-by-Pulse

Overload Protection (OLP) ------------------------------------- Auto-Restart

Overvoltage Protection (OVP) --------------------------------- Latch Shutdown

Thermal Shutdown Protection (TSD) ------------------------- Latch Shutdown

■ Applications

Switching Power Supplies for

Home Appliances (White Goods), Digital Consumer Equipment, OA Equipment, Industry Machines, Communication Devices, Others