Product Summary

The LT4250LIS8#TR is a negative 48V Hot Swap controller that allows a board to be safely inserted and removed from a live backplane.Inrush current of the LT4250LIS8#TR is limited to a programmable value by controlling the gate voltage of an external N-channel pass transistor.The LT4250LIS8#TR is designed for modules with a low enable input. Applications of the LT4250LIS8#TR include: Central Office Switching, -48V Distributed Power System, Negative Power Supply Control.

Parametrics

LT4250LIS8#TR aboslute maximum ratings: (1) Supply Voltage (VDD-VEE) : -0.3V to 100V; (2) WRGD, PWRGD Pins: -0.3V to 100 V; (3) SENSE, GATE Pins: - 0.3V to 20; (4) UV, OV Pins: -0.3V to 60V; (5)DRAIN Pin:-2V to 100; (6)Maximum Junction Temperature: 125 °C; (6) Operating Temperature Range: -40°C to 85°C ; (7) Storage Temperature Range: -65°C to 150°C; (8) Lead Temperature (Soldering, 10 sec) : 300°C.

Features

LT4250LIS8#TR features: (1)Allows Safe Board Insertion and Removal from a Live -48V Backplan; (2) Circuit Breaker Immunity to Voltage Steps and Current Spikes; (3) Programmable Inrush and Short-Circuit Current Limits; (4) Operates from -20V to -80V; (5) Programmable Overvoltage Protection; (6) Programmable Undervoltage Lockout; (7) Power Good Control Output; (8) Bell-Core Compatible ON/OFF Threshold.

Diagrams

LT4250LIS8#TR Pin Configuration

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LT4250LIS8#TR
LT4250LIS8#TR


IC CONTRLR HOTSWAP NEG 48V 8SOIC

Data Sheet

0-2500: $1.77
LT4250LIS8#TRPBF
LT4250LIS8#TRPBF


IC CONTRLR HOTSWAP NEG 48V 8SOIC

Data Sheet

0-2500: $1.77