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LT1640ALCS8#PBF

Negative Voltage Hot Swap Controller

Manufacturer: Analog Devices, Inc
Mfr.Part #: LT1640ALCS8#PBF
Datasheet: LT1640ALCS8#PBF Datasheet (PDF)
Package/Case: SOP-8
Product Type: Power Management ICs
RoHS:
Lifecycle: Active
EDA/CAD Models: Request Free CAD Models for LT1640ALCS8#PBF

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LT1640ALCS8#PBF General Description

The LT1640AL/LT1640AH are 8-pin, negative voltage Hot Swap^™ controllers that allow a board to be safely inserted and removed from a live backplane. Inrush current is limited to a programmable value by controlling the gate voltage of an external N-channel pass transistor. The pass transistor is turned off if the input voltage is less than the programmable undervoltage threshold or greater than the overvoltage threshold. A programmable electronic circuit breaker protects the system against shorts. The PWRGD (LT1640AL) or PWRGD (LT1640AH) signal can be used to directly enable a power module. The LT1640AL is designed for modules with a low enable input and the LT1640AH for modules with a high enable input.

Key Features

Allows Safe Board Insertion and Removal from a Live -48V Backplane
Operates from -10V to -80V
Programmable Inrush Current
Allows 50mA of Reverse Drain Pin Current
Programmable Electronic Circuit Breaker
Programmable Overvoltage Protection
Programmable Undervoltage Lockout
Power Good Control Output

Application

Central Office Switching
-48V Distributed Power Systems
Negative Power Supply Control

Specifications

model	LT1640ALCS8#PBF	package	8-Lead SOIC (Narrow 0.15 Inch)
packingQty	Tube,100	packingOption	Tube
packageType	05-08-1610 (S8)	rohs	roHSY
lifeCycle	production	tempRange	0 to 70C