Product Summary

The LT1641CS8 is an 8-pin Hot Swap controller that allows a board to be safely inserted and removed from a live backplane. Using an external N-channel pass transistor, the board supply voltage can be ramped up at a programmable rate. A high side switch driver controls an N-channel gate for supply voltages ranging from 9V to 80V. The chip features a programmable analog foldback current limit circuit. The applications of the LT1641CS8 include Hot Board Insertion, Electronic Circuit Breaker, Industrial High Side Switch/Circuit Breaker, 24V/48V Industrial/Alarm Systems.

Parametrics

LT1641CS8 absolute maximum ratings: (1)Supply Voltage (VCC): -0.3V to 100V; (2)Input Voltage (SENSE): -0.3V to 100V; (3)Input Voltage (TIMER): -0.3V to 44V; (4)Input Voltage (FB, ON): -0.3V to 60V; (5)Output Voltage (PWRGD): -0.3V to 100V; (6)Output Voltage (GATE): -0.3V to 100V; (7)Operating Temperature Range, LT1641CS8: 0℃ to 70℃; (8)Storage Temperature Range: -65℃ to 150℃; (9)Lead Temperature (Soldering, 10 sec): 300℃.

Features

LT1641CS8 features: (1)Allows Safe Board Insertion and Removal from a Live Backplane; (2)Controls Supply Voltage from 9V to 80V; (3)Programmable Analog Foldback Current Limiting; (4)High Side Drive for an External N-Channel; (5)Automatic Retry or Latched Operation Mode; (6)User Programmable Supply Voltage Power-Up Rate; (7)Undervoltage Lockout; (8)Overvoltage Protection.

Diagrams

LT1641CS8 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LT1641CS8
LT1641CS8


IC CTRLR HOTSWAP POS VOLT 8SOIC

Data Sheet

0-2500: $1.50
LT1641CS8#PBF
LT1641CS8#PBF


IC CTRLR HOTSWAP POS VOLT 8SOIC

Data Sheet

0-300: $1.51
LT1641CS8#TR
LT1641CS8#TR


IC CTRLR HOTSWAP POS VOLT 8SOIC

Data Sheet

0-2500: $1.58
LT1641CS8#TRPBF
LT1641CS8#TRPBF


IC CTRLR HOTSWAP POS VOLT 8SOIC

Data Sheet

0-2500: $1.53