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LTC4260
Positive High Voltage Hot Swap Controller with I2C Compatible Monitoring
Overview
Features and Benefits
- Allows Safe Insertion into Live Backplane
- 8-Bit ADC Monitors Current and Voltage
- I2C™/SMBus Interface
- Wide Operating Voltage Range: 8.5V to 80V
- High Side Drive for External N-Channel MOSFET
- Input Overvoltage/Undervoltage Protection
- Optional Latchoff or Autoretry After Faults
- Alerts Host After Faults
- Foldback Current Limiting
- Available in 24-Lead SO, 24-Lead Narrow SSOP and 32-Lead (5mm × 5mm) QFN Packages
Product Details
The LTC4260 Hot Swap™ controller 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. An I2C interface and onboard ADC allow monitoring of board current, voltage and fault status.
The device features adjustable analog foldback current limit with latch off or automatic restart after the LTC4260 remains in current limit beyond an adjustable time-out delay.
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
- Electronic Circuit Breakers
- Live Board Insertion
- Computers, Servers
Product Categories
Markets and Technologies
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation
Reliability Data (1)
User Guides (1)
Tools & Simulations
LTspice
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Models for the following parts are available in LTspice:
Linduino
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Linduino code repository on GitHub and instructions on how to use the code.
Reference Designs (1)
Reference Materials
Product Selector Card (2)
Videos (1)
LTspice: SOAtherm Tutorial
Press Releases (1)
Technical Articles (5)
Design Resources
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PCN-PDN Information
Support & Discussions
LTC4260 Discussions
Sample & Buy
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 Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Sampling:
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