FAN7621SSJ集成电路（IC）的ACDC转换器离线开关规格书PDF中文资料

FAN7621SSJ属于集成电路（IC）的ACDC转换器离线开关。由安森美半导体制造生产的FAN7621SSJAC 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 FAN7621S is a pulse frequency modulation controller for high-efficiency half-bridge resonant converters. Offering everything necessary to build a reliable and robust resonant converter, the FAN7621S simplifies designs and improves productivity, while improving performance. The FAN7621S includes a highside gate-drive circuit, an accurate current-controlled oscillator, frequency-limit circuit, soft-start, and built-in protection functions. The high-side gate-drive circuit has a common-mode noise cancellation capability, which guarantees stable operation with excellent noise immunity.

特性 Features

■ Variable Frequency Control with 50 Duty Cycle for Half-bridge Resonant Converter Topology

■ High Efficiency through Zero Voltage Switching (ZVS)

■ Fixed Dead Time: 350ns

■ Up to 300kHz Operating Frequency

■ Auto-Restart Operation for All Protections with an External LVCC

■ Protection Functions: Over-Voltage Protection (OVP), Over-Current Protection (OCP), Abnormal Over-Current Protection (AOCP), Internal Thermal Shutdown (TSD)

Applications

■ PDP and LCD TVs

■ Desktop PCs and Servers

■ Adapters

■ Telecom Power Supplies

■ Video Game Consoles