General Descriptions

The STR-A6100 series are power ICs for switching power supplies, incorporating a MOSFET and a current

mode PRC controller IC. PRC (Pulse Ratio Control) controls on-time with fixed off-time.

The IC includes a startup circuit and a standby function to achieve the low standby power. The rich set

of protection features helps to realize low component counts, and high performance-to-cost power supply.

Features

Current Mode Type Pulse Ratio Control

Auto Standby Function

Normal Operation ------------------------------ PRC Mode

Standby ---------------------------- Burst Oscillation Mode

No Load Power Consumption < 40mW

Leading Edge Blanking Function

Auto Bias Function

Protections

Overcurrent Protection (OCP); pulse-by-pulse

Overload Protection (OLP); auto-restart

Overvoltage Protection (OVP); latched shutdown

Thermal Shutdown Protection (TSD); latched shutdown

Applications

White goods

Auxiliary SMPS

Low power SMPS, etc.

STR-A6131属于集成电路（IC） > AC DC 转换器，离线开关。日本三垦制造生产的STR-A6131AC 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。