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
LT4250H/LT4250L - Negative 48V Hot Swap Controller
LT4250H/LT4250L - Negative 48V Hot Swap Controller
LT4250 Package Drawing LT4250
DN290 Monitor Network Compliant –48V Power Supplies
R375 Reliability Data
Hot Swap Controllers
November 2004 - -48V Backplane Impedance Analyzer Takes the Guesswork Out of Sizing Clippers and Snubbers
LT4250 Footprints and Symbols