Analog Devices Inc. LT4200 50A Hot-Swap E-Fuse
Analog Devices Inc. LT4200 50A Hot-Swap E-Fuse is an integrated solution for hot-swap applications that allows a board to be safely inserted and removed from a live backplane. The part integrates a hot-swap controller, power MOSFET, and current sense resistor into a single package for small form-factor applications. The MOSFET safe operating area is production tested and guaranteed for the stresses in hot-swap applications.
The Analog Devices Inc. LT4200 allows 50A of continuous operation at up to 85°C ambient temperature. It provides separate inrush current control and a ±12% accurate 57A current limit with output-dependent foldback. The current limit threshold can be adjusted dynamically using the ISET pin. Additional features include a current monitor output for ground-referenced current sensing and a MOSFET temperature monitor output. Thermal limit, overvoltage, undervoltage, and power good monitoring are also provided.
Features
- Allows safe board insertion into a live backplane
- 2.9V to 15V wide operating voltage range
- 7.5W√s guaranteed safe operating area
- 1.2mΩ MOSFET with current sense element
- ±4% current monitor output
- An adjustable current limit threshold
- Temperature monitor output
- Overtemperature protection
- Adjustable current limit timer before a fault
- Power Good and fault outputs
- Adjustable inrush current control
- ±2.5% accurate undervoltage and overvoltage protection
- Available in a 36-pin (5mm × 8mm) QFN package
Applications
- High availability servers
- Solid-state drives
Typical Application
Related Development Tool
Analog Devices Inc. DC3024A demonstrationskrets för LT4200
Demonstrationskretsen demonstrerar e-säkringen LT4200 50A för byte under drift med garanterad SOA.
Publicerad: 2022-01-17
| Uppdaterad: 2022-08-30