LT1640
Info: : PRODUCTION
searchIcon
cartIcon

LT1640

Negative Voltage Hot Swap Controller

Show More showmore-icon

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 12
1ku List Price Starting From $2.69
Features
  • Allows Safe Board Insertion and Removal from a Live –48V Backplane
  • Operates from –10V to –80V
  • Programmable Inrush Current
  • Programmable Electronic Circuit Breaker
  • Programmable Overvoltage Protection
  • Programmable Undervoltage Lockout
  • Power Good Control Output
Additional Details
show more Icon

The LT1640L/LT1640H is an 8-pin, negative voltage Hot Swap controller that allows 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 (LTC1640L) or PWRGD (LTC1640H) signal can be used to directly enable a power module. The LT1640L is designed for modules with a low enable input and the LT1640H for modules with a high enable input.

The LT1640L/LT1640H is available in 8-pin PDIP and SO packages.

Applications

  • Central Office Switching
  • –48V Distributed Power Systems
  • Negative Power Supply Control
Part Models 12
1ku List Price Starting From $2.69

close icon
Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LT1640HCN8#PBF
  • HTML
  • HTML
LT1640HCS8#PBF
  • HTML
  • HTML
LT1640HCS8#TRPBF
  • HTML
  • HTML
LT1640HIN8#PBF
  • HTML
  • HTML
LT1640HIS8#PBF
  • HTML
  • HTML
LT1640HIS8#TRPBF
  • HTML
  • HTML
LT1640LCN8#PBF
  • HTML
  • HTML
LT1640LCS8#PBF
  • HTML
  • HTML
LT1640LCS8#TRPBF
  • HTML
  • HTML
LT1640LIN8#PBF
  • HTML
  • HTML
LT1640LIS8#PBF
  • HTML
  • HTML
LT1640LIS8#TRPBF
  • HTML
  • HTML

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0241

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

LT1640HCN8#PBF

PRODUCTION

LT1640HIN8#PBF

PRODUCTION

LT1640LCN8#PBF

PRODUCTION

LT1640LIN8#PBF

PRODUCTION

Aug 6, 2022

- 22_0172

Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]

LT1640HCN8#PBF

PRODUCTION

LT1640HIN8#PBF

PRODUCTION

LT1640LCN8#PBF

PRODUCTION

LT1640LIN8#PBF

PRODUCTION

Oct 12, 2022

- 22_0254

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2)

LT1640HCS8#PBF

PRODUCTION

LT1640HCS8#TRPBF

PRODUCTION

LT1640HIS8#PBF

PRODUCTION

LT1640HIS8#TRPBF

PRODUCTION

LT1640LCS8#PBF

PRODUCTION

LT1640LCS8#TRPBF

PRODUCTION

LT1640LIS8#PBF

PRODUCTION

LT1640LIS8#TRPBF

PRODUCTION

Jun 11, 2021

- 21_0060

Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM

LT1640HCS8#PBF

PRODUCTION

LT1640HCS8#TRPBF

PRODUCTION

LT1640HIS8#PBF

PRODUCTION

LT1640HIS8#TRPBF

PRODUCTION

LT1640LCS8#PBF

PRODUCTION

LT1640LCS8#TRPBF

PRODUCTION

LT1640LIS8#PBF

PRODUCTION

LT1640LIS8#TRPBF

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0241

arrow down

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

LT1640HCN8#PBF

PRODUCTION

LT1640HIN8#PBF

PRODUCTION

LT1640LCN8#PBF

PRODUCTION

LT1640LIN8#PBF

PRODUCTION

Aug 6, 2022

- 22_0172

arrow down

Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]

LT1640HCN8#PBF

PRODUCTION

LT1640HIN8#PBF

PRODUCTION

LT1640LCN8#PBF

PRODUCTION

LT1640LIN8#PBF

PRODUCTION

Oct 12, 2022

- 22_0254

arrow down

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2)

LT1640HCS8#PBF

PRODUCTION

LT1640HCS8#TRPBF

PRODUCTION

LT1640HIS8#PBF

PRODUCTION

LT1640HIS8#TRPBF

PRODUCTION

LT1640LCS8#PBF

PRODUCTION

LT1640LCS8#TRPBF

PRODUCTION

LT1640LIS8#PBF

PRODUCTION

LT1640LIS8#TRPBF

PRODUCTION

Jun 11, 2021

- 21_0060

arrow down

Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM

LT1640HCS8#PBF

PRODUCTION

LT1640HCS8#TRPBF

PRODUCTION

LT1640HIS8#PBF

PRODUCTION

LT1640HIS8#TRPBF

PRODUCTION

LT1640LCS8#PBF

PRODUCTION

LT1640LCS8#TRPBF

PRODUCTION

LT1640LIS8#PBF

PRODUCTION

LT1640LIS8#TRPBF

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Recently Viewed