LTC4218 - Hot Swap Controller
Datasheet Documentation
Datasheet
Reliability Data
Product Selector Card
LT Journal
Press Release
cad_symbol
ltspice
Overview

Features

Typical Application

LTC4218 Typical Application
LTC4218 Typical Application

Description

The LTC®4218 is a Hot Swap™ controller that allows a board to be safely inserted and removed from a live backplane. An internal high side switch driver controls the gate of an external N-channel MOSFET for supply voltages from 2.9V to 26.5V. A dedicated 12V version (LTC4218-12) contains preset 12V specific thresholds, while the standard LTC4218 allows adjustable thresholds.

The LTC4218 provides an accurate (5%) current limit with current foldback limiting. The current limit threshold can be adjusted dynamically using an external pin. Additional features include a current monitor output that amplifies the sense voltage for ground referenced current sensing. Overvoltage, undervoltage and power good monitoring are also provided.

Packaging

5x3 DFN-16,SSOP-16

LTC4218 Package Drawing
LTC4218 Package Drawing
Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price
(1-99)		 Price
(1k)*
LTC4218CDHC-12#PBF DFN 16 C $3.79 $2.65
LTC4218CDHC-12#TRPBF DFN 16 C $2.71
LTC4218CGN#PBF SSOP 16 C $3.79 $2.65
LTC4218CGN#TRPBF SSOP 16 C $2.71
LTC4218IDHC-12#PBF DFN 16 I $4.35 $3.05
LTC4218IDHC-12#TRPBF DFN 16 I $3.11
LTC4218IGN#PBF SSOP 16 I $4.35 $3.05
LTC4218IGN#TRPBF SSOP 16 I $3.11
* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.


Part Number Description Price Documentation
DC1052A-A LTC4218 Demo Board: 12V and 24V, 7.5A Hot Swap Controller with Current Monitoring $50.00