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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.

特性 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.