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LT1640AL

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 Go...

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SeekIC No. : 004400749 Detail

LT1640AL: 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 Electron...

LT1640AL Data Sheet

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Part Number:
LT1640AL
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/21

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Product Details

Description



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


Pinout

Connection Diagram


Specifications

Supply Voltage (VDD VEE) ................. 0.3V to 100V
PWRGD, PWRGD Pins ........................... 0.3V to 100V
DRAIN Pin ................................................ 2V to 100V
SENSE, GATE Pins .................................... 0.3V to 20V
UV, OV Pins ............................................. 0.3V to 60V
Maximum Junction Temperature ........................ 125°C
Operating Temperature Range
   LT1640ALC/LT1640AHC ........................ 0°C to 70°C
   LT1640ALI/LT1640AHI ...................... 40°C to 85°C
Storage Temperature Range ............ 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C


Description

The LT®1640AL/LT1640AH are 8-pin, negative voltage Hot SwapTM 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.

The LT1640AL/LT1640AH are available in 8-pin PDIP and SO packages.




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