描述 Description

The NCP1397 is a high performance controller that can be utilized in half bridge resonant topologies such as series resonant, parallel resonant and LLC resonant converters. It integrates 600 V gate drivers, simplifying layout and reducing external component count. With its unique architecture, including a 500 kHz Voltage Controlled Oscillator whose control mode permits flexibility when an ORing function is required, the NCP1397 delivers everything needed to build a reliable and rugged resonant mode power supply. The NCP1397 provides a suite of protection features with configurable settings to optimize any application. These include: auto-recovery or fault latch-off, brown-out, open optocoupler, soft-start and short-circuit protection. Deadtime is also adjustable to overcome shoot through current.

NCV1397 offers an Automotive certified version (AEC-Q100/PPAP)

特性 Features

? Adjustable minimum switching frequency with 3% accuracy
? Keeps the converter operation in the right region & simplifies design
? Brown-out input
? Simple PFC association
? 1 A / 0.5 A Peak Current Sink / Source Drive
? High gate drive capability
? Timer-based OCP input with auto-recovery
? Allows transient overload, protects against overpower
? Second latched OCP level
? Protects application in case of short circuit
? Adjustable deadtime from 100 ns to 2 us
? Prevents shoot-through currents and allows for optimization based on MOSFET characteristics
? Adjustable soft-start
? Reduces startup currents

應(yīng)用 Application

? Flat panel display power converters
? High power AC/DC adapters for notebooks
? Computing power supplies
? Industrial and medical power sources
? Offline battery chargers
? Automotive LLC Power Supply
? Notebook Adapters
? LCD TVs
? ATX power supplies

簡介

NCP1397屬于集成電路（IC）的ACDC轉(zhuǎn)換器離線開關(guān)。由制造生產(chǎn)的NCP1397AC DC 轉(zhuǎn)換器，離線開關(guān)該系列是元器件級(jí)控制產(chǎn)品，用于構(gòu)建將交流市電轉(zhuǎn)換為直流電（通常電壓大幅降低）的設(shè)備。集成和未集成系統(tǒng)主要開關(guān)元件的器件均包括在內(nèi)。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(shí)現(xiàn)此用途，但也有許多專門用于此用途的庫存產(chǎn)品，請參見“開關(guān)轉(zhuǎn)換器，SMPS 變壓器”標(biāo)題。