NCP3420中文资料具有双路输出的 MOSFET 驱动器，用于同步降压转换器数据手册ONSEMI规格书

描述 Description

The NCP3420 is a single phase MOSFET gate driver optimized to drive the gates of both high-side and low-side power MOSFETs in a synchronous buck converter. The high-side and low-side driver is capable of driving a 3000 pF load with a 30 ns propagation delay and a 20 ns transition time. With a wide operating voltage range, high or low side MOSFET gate drive voltages can be optimized for the best efficiency. Internal adaptive nonoverlap circuitry reduces switching losses by preventing simultaneous conduction of both MOSFETs. Both gate outputs can be driven low by applying a low logic level to the Output Disable pin. An Undervoltage Lockout function ensures that both the driver outputs are low when the supply voltage is low, and a Thermal Shutdown function provides the IC with overtemperature protection.

特性 Features

• Thermal Shutdown Protection
• Internal pulldown resistors suppress transient turn on of either MOSFET
• Anti cross-conduction protection circuitry
• One output signal controls both the upper and lower gate outputs
• Output disable control turns off both MOSFETs
• Complies with VRM10.x and VRM11.x specifications
• Undervoltage lockout
• Thermally enhanced package available

应用 Application

• MOSFET Driver
• Desktop, Server

简介

NCP3420属于集成电路（IC）的栅极驱动器。由制造生产的NCP3420栅极驱动器栅极驱动器电源管理集成电路 (PMIC) 可用于提供隔离、放大、参考位移、自举或其他必要功能，这些功能可将来自电源转换应用中控制设备的信号连接到电源被控制通过的半导体设备（通常为 FET 或 IGBT）。任何特定设备提供的确切功能各不相同，但与它适合驱动的半导体配置相关。