NCP361中文资料过电压保护电路，USB 正向，带内部 PMOS FET 和过电流保护数据手册ONSEMI规格书

描述 Description

NCP361 is able to disconnect the system from its output pin in case wrong VBUS operating conditions are detected. The system is positive overvoltage protected up to +20 V. Thanks to the integrated PMOS FET, no external device is necessary, reducing the system cost and the PCB area of the application board. NCP361 is able to instantaneously disconnect the output from the input if the input voltage exceeds the overvoltage threshold (OVLO).Thanks to an overcurrent protection, the integrated PMOS is turning off when the charge current exceeds current limit (see options in ordering information). NCP361 provides a negative-going flag (FLAG) output, which alerts the system that a fault has occurred. In addition, the device has ESD protected input (15 kV Air) when bypassed with a 1.0 µF or larger capacitor.

特性 Features

• Very Fast Protection, Up to 20 V, with 25 µA Current Consumption
• When wall adapter or AC-DC overvoltage appears, the internal pass element is turned off very fast in order to protect the downstream system. The current consumption is around 25 µA although the very fast turn off capability.
• On-chip PMOS Transistor
• No external device is necessary.
• Overvoltage Lockout (OVLO)
• Typical OVLO is set to 5.675 V.
• Undervoltage Lockout (UVLO)
• Typical UVLO is set to 3.0 V.
• Overcurrent Protection.
• Typical OCP is set to 750 mA.
• Alert FLAG Output
• The microcontroller can take into account Flag status and controls thanks to EN pin the pass element state.
• EN Enable Pin
• The OVP device can be forced to off state thanks to this pin.
• Thermal Shutdown
• When internal junction temperature is exceeded, the pass element is turned off.
• 6-Lead UDFN 2 x 2 mm Package
• Very small package, small thickness.
• TSOP-5 3 x 3 mm Package
• Low cost version.
• These are Pb-Free Devices

应用 Application

• Personal Digital Applications
• Mobile Phones
• MP3 Players
• Computing
• USB Devices
• Set Top Boxes
• Peripherals

简介

NCP361属于电路保护的TVS-混合技术。由制造生产的NCP361TVS - 混合技术混合技术 TVS（瞬态电压抑制器）产品族中的产品属于过压保护产品，其中结合了基于多种技术的保护机制，例如串联连接的 MOV（金属氧化物压敏电阻）和 GDT（气体放电管），旨在同时获得低漏电流和自恢复箝位工作特性。