Features
• Integrates Three Major Functions
- Smart Power Plug communications
- Programmable power sequencing
- Programmable Hot Swap controller
• Smart Power Plug™
- Intelligent board insertion allows verification of board
and power supply resources prior to system insertion.
- Fault detection register records the cause of the faults
- Soft extraction
- Soft re-insertion
- Remote gate shutdown/turn on
- Power ID/manufacturing ID memory (2kb of EEPROM)
• Programmable Power Sequencing
- Sequence up to 5 DC/DC converters.
- Four independent voltage enable pins
- Four programmable time delay circuits
- Soft Power Sequencing - restart sequence without
power cycling.
• Hot Swap Controller
- Programmable overvoltage and undervoltage protection
- Undervoltage lockout for battery/redundant supplies
- Programmable slew rate for external FET gate control
- Electronic circuit breaker - overcurrent detection and
gate shut-off
- Programmable overcurrent limit during Insertion
- Programmable hardshort retry with retry failure flag
- Typically operates from -30V to -80V. Tolerates
transients to -200V (limited by external components)
• Available Packages
- 32-lead Quad No-Lead Frame (QFN)
Applications
• -48V Hot Swap Power Backplane/Distribution Central
Office, Ethernet for VOIP
• Card Insertion Detection
• Power Sequencing DC-DC/Power Bricks
• IP Phone Applications
• Databus Power Interfacing
• Custom Industrial Power Backplanes
• Distributed Power Systems