NCP1032中文资料Integrated DC-DC Converter, PWM, 3.0W数据手册ONSEMI规格书

描述 Description

The NCP1032x is a miniature high-voltage monolithic switching converters with on-chip Power Switch and Startup Circuits. It incorporates in a single IC all the active power, control logic and protection circuitry required to implement, with minimal external components, several switching regulator applications, such as a secondary side bias supply or a low power dc-dc converter. This converter is ideally suited for 24V, 48V telecom and medical isolated power supplies applications. The NCP1032x can be configured in any single-ended topology such as forward or flyback converter. The NCP1032x is targeted for applications requiring up to 3W.

The internal error amplifier allows the NCP1032x to be easily configured for secondary or primary side regulation operation in isolated and non-isolated configurations. The fixed frequency oscillator is optimized for operation up to 1MHz and is capable of external frequency synchronization, providing additional design flexibility. In addition, the NCP1032x incorporates undervoltage and overvoltage line detectors, programmable cycle-by-cycle current limit, internal soft start and thermal shutdown to protect the controller under fault conditions.

特性 Features

• On Chip High 200 V Power Switch Circuit and Startup Circuit
• No external circuitry needed for high voltage start up
• Internal Startup Regulator with Auxiliary Winding Override
• Smaller PCB footprint
• Programmable Oscillator Frequency, Operation up to 1 MHz
• Optimization of switching frequency for size and efficiency
• External Frequency Synchronization Capability
• Optimization of switching frequency for size and efficiency
• Frequency Fold-down Under FaultConditions
• System level protection
• Trimmed ± 1% Internal Reference
• Output voltage accuracy
• Programmable Cycle by Cycle Current Limit
• System level protection
• Line Under and Over Voltage Protection
• System level protection
• Over Temperature Protection
• System level protection
• Internal Soft Start
• Active Leading Edge Blanking Circuit

应用 Application

• Stand Alone Low Power DC-DC Converter
• Secondary Side Bias Supply for Isolated DC-DC Converters
• Low Power Bias Supply
• Low Power Boost Converter
• Medical Isolated Power Supplies
• POE (Power Over Ethernet)/PD. Refer to Application Note AND8247.
• Bias Supply for Telecom Systems. Refer to Application Note AND8119/D.
• Microinverter for solar systems
• High voltage Power Supplies

简介

NCP1032属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的NCP1032稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。