LTC1642A

PRODUCTION

Hot Swap Controller

Part Models: 4
1ku List Price: Starting From $3.81

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Part Details

Adjustable Undervoltage and Overvoltage Protection
Foldback Current Limit
Adjustable Current Limit Time-Out
V_CC: 2.97V to 16.5V Normal Operation, Protected Against Surges to 33V
Single Channel NFET Driver
Latch Off or Automatic Retry on Current Fault
Driver for SCR Crowbar on Overvoltage
Adjustable Reset Timer
Reference Output with Uncommitted Comparator
16-Pin SSOP Package

The LTC1642A is a 16-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 an adjustable rate. A high side switch driver controls the N-Channel gate for supply voltages ranging from 2.97V to 16.5V.

The SENSE pin allows foldback limiting of the load current, with circuit breaker action after an adjustable delay time. The delay allows the part to power-up in current limit. The CRWBR output can be used to trigger an SCR for crowbar protection of the load if the input supply exceeds an adjustable threshold. The RESET output can generate a system reset with adjustable delay when the supply voltage falls below an adjustable threshold. The ON pin cycles the board power. The LTC1642A is available in the 16-pin SSOP package.


	Notes
LTC1642
LTC1642A	Recommended for application where V_CC is Higher than 12V

Applications

Hot Board Insertion
Electronic Circuit Breaker
InfiniBand^™ Systems

Part Models: 4
1ku List Price: Starting From $3.81

Documentation

Data Sheet 1

LTC1642A: Hot Swap Controller Data Sheet 11/09/2007

Reliability Data 1

R318 Reliability Data 03/22/2018

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC1642ACGN#PBF	16-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1642ACGN#TRPBF	16-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1642AIGN#PBF	16-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC1642AIGN#TRPBF	16-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Oct 3, 2024 - 24_0235 (QSOP/SSOP PKG) Migrating Bottom Trace Code Marking to Top Side Laser Marking
		PCN24_0235_Form Material_Report Other Delta Qualification Matrix
LTC1642ACGN#PBF	PRODUCTION
LTC1642ACGN#TRPBF	PRODUCTION
LTC1642AIGN#PBF	PRODUCTION
LTC1642AIGN#TRPBF	PRODUCTION
Oct 11, 2022 - 22_0235 Epoxy Change from Henkel 8290 to 8290A for GN Package
		PCN22_0235_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LTC1642ACGN#PBF	PRODUCTION
LTC1642ACGN#TRPBF	PRODUCTION
LTC1642AIGN#PBF	PRODUCTION
LTC1642AIGN#TRPBF	PRODUCTION
Apr 6, 2022 - 22_0066 Laser Top Mark for 16QSOP Assembled in ADPG [PNG]
		PCN22_0066_Form Material_Report Delta Qualification Matrix
LTC1642ACGN#PBF	PRODUCTION
LTC1642ACGN#TRPBF	PRODUCTION
LTC1642AIGN#PBF	PRODUCTION
LTC1642AIGN#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Hardware Ecosystem

Parts	Product Life Cycle	Description
Low Voltage Hot Swap Controllers 1
LTC4218	RECOMMENDED FOR NEW DESIGNS	Hot Swap Controller

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