LTC4226 - Wide Operating Range Dual Hot Swap Controller
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Overview

Features

Typical Application

LTC4226 Typical Application
LTC4226 Typical Application

Description

The LTC4226 dual Hot Swap™ controller allows two power paths to be safely inserted and removed from a live backplane or powered connector. Using N-channel pass transistors, supply voltages ranging from 4.5V to 44V are ramped up at an adjustable rate.

Three selectable ratios of current limit to circuit breaker threshold accommodate noisy loads and momentary high peak currents without interruption, while a dual-rate fault timer protects the MOSFET from extended output overcurrent events. FAULT outputs indicate the circuit breaker status.The LTC4226-1 remains off after a fault while the LTC4226-2 automatically retries after a 0.5s delay.

The LTC4226 can also be configured as a bidirectional current limiter/circuit breaker. For high current applications, two channels may be configured as parallel power paths.

Packaging

3x3 QFN-16,MS-16

LTC4226 Package Drawing
LTC4226 Package Drawing
Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price
(1-99)		 Price
(1k)*
LTC4226CMS-1#PBF MSOP 16 C $4.43 $3.10
LTC4226CMS-1#TRPBF MSOP 16 C $3.16
LTC4226CMS-2#PBF MSOP 16 C $4.43 $3.10
LTC4226CMS-2#TRPBF MSOP 16 C $3.16
LTC4226CUD-1#PBF QFN 16 C $4.43 $3.10
LTC4226CUD-1#TRPBF QFN 16 C $3.16
LTC4226CUD-2#PBF QFN 16 C $4.43 $3.10
LTC4226CUD-2#TRPBF QFN 16 C $3.16
LTC4226IMS-1#PBF MSOP 16 I $5.09 $3.57
LTC4226IMS-1#TRPBF MSOP 16 I $3.63
LTC4226IMS-2#PBF MSOP 16 I $5.09 $3.57
LTC4226IMS-2#TRPBF MSOP 16 I $3.63
LTC4226IUD-1#PBF QFN 16 I $5.09 $3.57
LTC4226IUD-1#TRPBF QFN 16 I $3.63
LTC4226IUD-2#PBF QFN 16 I $5.09 $3.57
LTC4226IUD-2#TRPBF QFN 16 I $3.63
* 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
DC1627A-A LTC4226CUD-1 Demoboard : Dual Hot Swap Controller with Latch Off $75.00
DC1627A-B LTC4226CUD-2 Demoboard : Dual Hot Swap Controller with Auto-Retry $75.00