LTC4245

LAST TIME BUY

LTC4245

Multiple Supply Hot Swap Controller with I²C Compatible Monitoring

LAST TIME BUY

Not the part you were looking for?

Go to Product Selection Table

View All Documentation

Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

Other places you can find help

Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Features

Allows Safe Insertion into Live CompactPCI^™ or PCI Express^™ Backplane
8-Bit ADC Monitors Current and Voltage
I²C^™/SMBus Interface
dI/dt Controlled Soft Start
Simultaneous or Sequenced Turn-On
±20V Absolute Maximum Rating for ±12V Supplies
No External Gate Capacitor Required
Dual-Level Circuit Breaker and Current Limit
Bus Precharge Output
Power Good Input with Timeout
Optional Latch-off or Autoretry After Faults
Alerts Host After Faults
Integrated LOCAL_PCI_RST# Logic
36-Pin SSOP and 38-Pin (5mm × 7mm) QFN Packages

Additional Details

The LTC4245 Hot Swap^™ controller allows a board to be safely inserted and removed from a live backplane in multiple supply systems such as CompactPCI and PCI Express. Using four external N-channel pass transistors, the board supply voltages can be ramped up at an adjustable rate and in any desired sequence. An I²C interface and on-board ADC allow monitoring of board current, voltage and fault status for each supply.

The device features adjustable dI/dt controlled soft start and foldback limited inrush current. A dual-level timed circuit breaker and fast current limit protect each supply against overcurrent faults. A power good input with timeout allows a downstream supply monitor to disconnect the board supplies. The device can be conﬁgured to function without a –12V supply or with an extra 3.3V supply instead of a 5V supply.

The controller has additional features to interrupt the host when a fault has occurred, notify when output power is good, detect insertion of a load card and power-up in either the on or off state.

Applications

Live Board Insertion
CompactPCI, CompactPCI Express, CompactTCA, PCI Express Systems

View All Documentation

Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

Other places you can find help

Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Technical Documents 4

LTC4245: Multiple Supply Hot Swap Controller with I²C Compatible Monitoring Data Sheet 11/12/2007

R536 Reliability Data 03/26/2018

DC985A - Demo Manual 09/24/2009

Compact Solution for Hot Swap and Supply Monitoring in CompactPCI and PCI Express Systems 05/01/2006

Reference Materials 1

Hot Swap Controllers 08/02/2023

Companion Parts 3

Parts	Product Life Cycle	Description
Low Voltage Hot Swap Controllers1
LTC4222	PRODUCTION	Dual Hot Swap Controller with I²C Compatible Monitoring
PCI Hot Swap Controllers2
LTC4240	PRODUCTION	CompactPCI Hot Swap Controller with I²C Compatible Interface
LTC4242	RECOMMENDED FOR NEW DESIGNS	Dual Slot Hot Swap Controller for PCI Express

DC985A-A/B

LTC4245 Demoboard: Quad Hot Swap Controller with ADC and I2C (Requires DC590)

DC985A-A/B

LTC4245 Demoboard: Quad Hot Swap Controller with ADC and I2C (Requires DC590)

Buy Now View Details

Product Detail

DC985A-A/B: Demo Board for the LTC4245 Multiple Supply Hot Swap Controller with I²C Compatible Monitoring.

Resources

ZIP

DC985A - Design File

1.00M

PDF

DC985A - Demo Manual

3.00M

PDF

DC985A - Schematic

93.00K

DC985A-A/B

LTC4245 Demoboard: Quad Hot Swap Controller with ADC and I2C (Requires DC590)

Linduino 3

Linduino

Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.

Linduino code repository on GitHub and instructions on how to use the code.

Purchase Linduino

Linduino download and documentation

Code Files

Linduino

LTC4245 Linduino.CPP

LTC4245 Linduino Header File

LTC4245 - DC985A.ino

Terasic DE10-Nano Kit

Download

Terasic DE10-Nano Kit

Circuits from the lab

Features and Benefits

Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
Our reference designs are supported by an intuitive design tool set and IP
Our team can provide designs for quick prototypes that can speed time to market in the most complex applications

View Detailed Reference Design