Bus Protection

Solutions

The ability to hot-swap memory, drives, or other peripherals is a crucial functionality of server, computing, and telecom hardware. Our load switch and eFuse portfolios provide an easy, compact, and efficient solution with the hot-swap controller and MOSFET integrated into one device. onsemi carries eFuses for 12-volt, 5-volt, and 3.3-volt power domains, with 48-volt compatible devices in development. We use the latest MOSFET technology to provide efficient and reliable compact hot-swap capability with various protection features.

Evaluation/Development Kits

NCP459FCT2GEVB: Load Switch, 4 A Evaluation Board

NCP459FCT2GEVB evaluation board is designed to quickly test the NCP458, which a is power load switch with very low Ron NMOSFET controlled by external logic pin, allowing optimization of battery life, and portable device autonomy.

NCP451FCT2GEVB: 3.0 A Controlled Load Switch with Auto-Discharge Path Evaluation Board

The NCP451FCT2GEVB evaluation board is designed to quickly test the NCP451, a very low Ron MOSFET controlled by external logic pin, allowing optimization of battery life, and portable device autonomy.

NCP457FCT2GEVB: 2 A Single Load Switch For Low Voltage Rail Evaluation Board

The NCP457FCT2GEVB evaluation board is designed to quickly test the NCP457, a power load switch with very low Ron NMOSFET controlled by external logic pin, allowing optimization of battery life, and portable device autonomy.

NCP458RFCT2GEVB: Load Switch, 4 A Evaluation Board

The NCP458RFCT2GEVB evaluation board is designed to quickly test the NCP458, which is a power load switch with very low Ron NMOSFET controlled by external logic pin, allowing optimization of battery life, and portable device autonomy.

NCP45521IMNGEVB: Integrated Load Switch with Ultra-Low Ron, 11.5A, Evaluation Board

The NCP45521IMNGEVB evaluation board is designed to quickly assess the NCP45521, an integrated load switch. The ecoSWITCH™ NCP45520, NCP45521 series of load management devices provide a component and area-reducing solution for efficient power domain switching with inrush current limit via soft start.

NCP45520IMNGEVB: Controlled Load Switch with Ultra-Low Ron Evaluation board

The NCP45520 load switch provides a component and area-reducing solution for efficient power domain switching with inrush current limit via soft-start. In addition to integrated control functionality with ultra low on-resistance, this device offers system safeguards and monitoring via fault protection and power good signaling.

NCP45560IMNGEVB: Integrated Load Switch with Ultra-Low Ron, 23A, Evaluation Board

The NCP45560 load switch provides a component and area-reducing solution for efficient power domain switching with inrush current limit via soft-start. In addition to integrated control functionality with ultra low on-resistance, this device offers system safeguards and monitoring via fault protection and power good signaling.

NIS5232-35GEVB: NIS5232-35 Electronic Fuse Evaluation Board

The NIS5232 and NIS5235 electronic fuses are monolithic, integrated circuits that offer superior protection for overcurrent and overvoltage. The NIS5232 is designed for 12 volt systems while the NIS5235 is designed for 5 volt systems.

NIS5452MT1GEVB: eFuse Test Board with Multiple Subcircuits for Evaluation of Overvoltage Protection, Overcurrent Protection, Controlled Slew Rate, and Thermal Shutdown Features Evaluation Board

The NIS5452MT1EVB evaluation board has many features which make it simple to observe the functionality and performance of NIS54xx line of eFuses including multiple connectors available for all eFuse pins.

Tools

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Technical Documents

The Load Switch: Application Notes on Selection and Use of ecoSWITCH Products

Understanding eFuse Input Voltage Transients from Hot Plug Events

Hot-Plug Insertion Startup Time Delay for eFuse

Paralleling eFuses

eFuse Load Current Measurement

Enable Pin Operation and Function of eFuses

Advantages of eFuses Versus PTC resettable Fuses

Videos