STR3A462HDL集成电路（IC）的ACDC转换器离线开关规格书PDF中文资料

STR3A462HDL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STR3A462HDLAC 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。

描述 Description

The STR3A46xHL/HDL series are power ICs for

switching power supplies, incorporating a power

MOSFET and a current mode PWM controller IC.

To enhance efficiency in all load ranges, the IC

automatically shifts its operation to the green mode or

burst oscillation mode, depending on the load. The

product achieves high cost-performance power supply

systems with few external components.

特性 Features

● Bare Lead Frame: Pb-free (RoHS compliant)

● Low Thermal Resistance Package

● Improving circuit efficiency (Since the step drive

control can keep VRM of secondary rectification diodes

low, the circuit efficiency can be improved by low VF)

● Noise Reduction

● Current Mode Type PWM Control

● Soft Start Function

● Automatic Standby Function

No Load Power Consumption < 15mW

● Operation Mode

Normal Operation ----------------------------PWM Mode

Light Load Operation----------------------- Green-Mode

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

● Random Switching Function

● Slope Compensation Function

● Leading Edge Blanking Function

● Bias Assist Function

● Protections

Two Types of Overcurrent Protection (OCP): Pulseby-Pulse, built-in compensation circuit to minimize

OCP point variation on AC input voltage

Overload Protection (OLP): Auto-restart

Overvoltage Protection (OVP): Auto-restart / Latched

shutdowon

Thermal Shutdown (TSD): Auto-restart / Latched

shutdowon