LT4250 - Negative 48V Hot Swap Controller

Features
  • Allows Safe Board Insertion and Removal from a Live –48V Backplane
  • Circuit Breaker Immunity to Voltage Steps and Current Spikes
  • Programmable Inrush and Short-Circuit Current Limits
  • Pin Compatible with LT1640L/LT1640H
  • Operates from –18V to –80V
  • Programmable Overvoltage Protection
  • Programmable Undervoltage Lockout
  • Power Good Control Output
  • Bell-Core Compatible ON/OFF Threshold
Typical Application

Applications
  • Central Office Switching
  • –48V Distributed Power Systems
  • Negative Power Supply Control
Packaging

Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LT4250HCN8#PBFN-8C$2.75$2.30
LT4250HCS8#PBFSO-8C$2.85$2.35
LT4250HCS8#TRPBFSO-8C$2.41
LT4250HIN8#PBFN-8I$3.10$2.60
LT4250HIS8#PBFSO-8I$3.20$2.65
LT4250HIS8#TRPBFSO-8I$2.71
LT4250LCN8#PBFN-8C$2.75$2.30
LT4250LCS8#PBFSO-8C$2.85$2.35
LT4250LCS8#TRPBFSO-8C$2.41
LT4250LIN8#PBFN-8I$3.10$2.60
LT4250LIS8#PBFSO-8I$3.20$2.65
LT4250LIS8#TRPBFSO-8I$2.71
Demo Boards
Part NumberDescriptionPrice
DC429ALT4250LCS8 | Negative Voltage Hot Swap Controller$50.00
Datasheet
Design Note
Reliability Data
Product Selector Card
LT Journal
Related Product
Datasheet
LT4250H/LT4250L - Negative 48V Hot Swap Controller
LT4250H/LT4250L - Negative 48V Hot Swap Controller
Other
November 2004 - -48V Backplane Impedance Analyzer Takes the Guesswork Out of Sizing Clippers and Snubbers
Hot Swap Controllers
LT4250 Package Drawing LT4250
DN290 Monitor Network Compliant –48V Power Supplies
LT4250 Footprints and Symbols
R375 Reliability Data