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

簡介

L6598屬于集成電路（IC）的ACDC轉換器離線開關。由制造生產的L6598AC DC 轉換器，離線開關該系列是元器件級控制產品，用于構建將交流市電轉換為直流電（通常電壓大幅降低）的設備。集成和未集成系統(tǒng)主要開關元件的器件均包括在內。由于高輸入輸出電壓比，以及此類系統(tǒng)中通常需要隔離，這些器件通常與外部變壓器配合使用。盡管通常使用定制變壓器來實現(xiàn)此用途，但也有許多專門用于此用途的庫存產品，請參見“開關轉換器，SMPS 變壓器”標題。