+

LT4250LCN8 LT4250LIN8 LT4250HCN8 LT4250 - Negative 48V Hot Swap Controller

USD 2.70

LT4250LCN8 LT4250LIN8 LT4250HCN8 LT4250 - Negative 48V Hot Swap Controller

Description
 
 
 
 

Features and Benefits

 

  • 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

 

 

Product details

 

The LT4250L/LT4250H are 8-pin, negative 48V 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 current limit protects the system against shorts. After a 500μs timeout the current limit activates the electronic circuit breaker. The PWRGD (LT4250L) or PWRGD (LT4250H) signal can be used to directly enable a power module. The LT4250L is designed for modules with a low enable input and the LT4250H for modules with a high enable input.

 

The LT4250L/LT4250H are available in 8-pin PDIP and SO packages

 

 

Applications

 

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

 

 

 

 
Specification

Condition : New

Origin : Mainland China

Type : Voltage Regulator

Model Number : LT4250

MC14513BCP , 4513
USD 16.50
TD62503P DIP-16
USD 7.10
+