L6598中文资料谐振控制器数据手册ST规格书

描述 Description

The L6598 device is manufactured with the BCD™ offline technology, able to ensure voltage ratings up to 600 V, making it perfectly suited for AC/DC adapters and wherever a resonant topology can be beneficial. The device is intended to drive two power MOSFETs, in the classical half bridge topology. A dedicated timing section allows the designer to set soft-start time, soft-start and minimum frequency. An error amplifier, together with the two enable inputs, are made available. In addition, the integrated bootstrap diode and the Zener clamping on low voltage supply, reduces to a minimum the external parts needed in the applications.

特性 Features

• High voltage rail up to 600 V
• dV/dt immunity ±50 V/ns in full temperature range
• Driver current capability: 250 mA source 450 mA sink
• Switching times 80/40 ns rise/fall with 1 nF load
• CMOS shutdown input
• Undervoltage lockout
• Soft-start frequency shifting timing
• Sense op amp for closed loop control or protection features
• High accuracy current controlled oscillator
• Integrated bootstrap diode
• Clamping on Vs
• Available in DIP16 and SO16 packages

简介

L6598属于集成电路（IC）的ACDC转换器离线开关。由ST制造生产的L6598AC 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。