Inrush Limiter/Circuit Breaker

The NIS5101 combines the control function and power FET into a single IC that saves design time and reduces the number of components required for a complete hot swap application. It is designed to allow safe insertion and removal of electronic equipment to −48 V backplanes. This chip features simplicity of use combined with an integrated solution.
The NIS5101 includes user selectable undervoltage and overvoltage lockout levels. It also has adjustable current limiting that can be reduced from the maximum level with a single resistor. Operation at the maximum current level requires no extra external components. An internal temperature shutdown circuit greatly increases the reliability of this device.

FEATUREs
• Integrated Power Device
• 100 V Operation
• Thermal Limit Protection
• Adjustable Current Limit
• No External Current Shunt Required
• Undervoltage and Overvoltage Lockouts
• 6.5 A Continuous Operation
• UIS Rated
• Main/Mirror MOSFET Current Ratio 820:1
• Pb−Free Packages are Available

Typical Applications
• VoIP (Voice over Internet Protocol) Servers
• −48 V Telecom Systems
• +24 V Wireless Base Station Power
• Central Office Switching
• Electronic Circuit Breaker