特性 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