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SC4150 - Negative Voltage Hot Swap Controller

Description

The SC4150 is a negative voltage hotswap controller that allows the insertion of line cards into a live backplane.

The inrush current is programmable and closed loop operation limits the maximum current even under short circuit conditions.

A built in timing circuit prevents false shutdown.

Features

  • ‹ Programmable slew of the inrush current when used for hot insertion in the negative 24V and 48V backplane ‹ Closed loop operation limits the maximum current even in short circuit condition ‹ Built in timer prevents false shutdown, when the closed loop operation limits the current. ‹ Sensing the drain voltage allows for immediate shutdown in short circuit condition, where current spikes and noise is ignored. ‹ Power good signal ‹ Input UVLO and OVLO sensing ‹ SO-8 package.

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Datasheet preview – SC4150

Datasheet Details

Part number SC4150
Manufacturer Semtech
File Size 348.69 KB
Description Negative Voltage Hot Swap Controller
Datasheet download datasheet SC4150 Datasheet
Additional preview pages of the SC4150 datasheet.

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Full PDF Text Transcription

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POWER MANAGEMENT Description The SC4150 is a negative voltage hotswap controller that allows the insertion of line cards into a live backplane. The inrush current is programmable and closed loop operation limits the maximum current even under short circuit conditions. A built in timing circuit prevents false shutdown. The signal from the drain voltage is fed to the timer, providing safety for the MOSFET when in linear mode. The SC4150 latches off under abnormal condition and attempts to restart after a time out period. The device comes in two options, PWRGD (SC4150H) and PWRGD (SC4150L). These signals can be directly used to enable power modules.
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