Voltage Protection | NUS3055

Low Profile Overvoltage Protection IC with Integrated MOSFET

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Overview

This device represents a new level of safety and integration by combining the NCP345 overvoltage protection circuit (OVP) with a 30 V P-Channel Power MOSFET. It is specifically designed to protect sensitive electronic circuitry from overvoltage transients and power supply faults. During such hazardous events, the IC quickly disconnects the input supply from the load, thus protecting the load before any damage can occur.
The OVP IC is optimized for applications that use an external AC-DC adapter or a car accessory charger to power a portable product or recharge its internal batteries. It has a nominal overvoltage threshold of 6.85 V which makes them ideal for single cell Li-Ion as well 3/4 cell NiCD/NiMH applications.

  • Designed to protect sensitive electonic circuitry from overvoltage tranisents and power supply faults.
  • Portable Computers, PDAs, Cell Phones, Handheld Products, and Digtial Cameras
  • Overvoltage Turn-Off Time of Less Than 1.0 µs
  • Accurate Voltage Threshold of 6.85 V, Nominal
  • Undervoltage Lockout Protection; 2.8 V, Nominal
  • High Accuracy Undervoltage Threshold of 2.0 %
  • -30 V Integrated P-Channel Power MOSFET
  • Low RDS(on) = 75 mΩ @ -4.5 V
  • Low Profile 0.55 mm height, 2.5x3.0 mm LLGA package Suitable for Portable Applications
  • Maximum Solder Reflow Temperature @ 260°C
  • This device is manufacured with a Pb-Free external lead finish only.

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