LTC4260
RECOMMENDED FOR NEW DESIGNSPositive High Voltage Hot Swap Controller with I2C Compatible Monitoring
- Part Models
- 12
- 1ku List Price
- Starting From $9.93
Overview
- 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
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
Documentation
Data Sheet 1
User Guide 1
Design Note 1
Technical Articles 5
Video 1
Product Selector Card 2
Press Release 1
Rarely Asked Question 1
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 |
|---|---|---|---|
| LTC4260CGN#PBF | 24-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC4260CGN#TRPBF | 24-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC4260CSW#PBF | 24-Lead SOIC (Wide 0.3 Inch) | ||
| LTC4260CSW#TRPBF | 24-Lead SOIC (Wide 0.3 Inch) | ||
| LTC4260CUH#PBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) | ||
| LTC4260CUH#TRPBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) | ||
| LTC4260IGN#PBF | 24-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC4260IGN#TRPBF | 24-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC4260ISW#PBF | 24-Lead SOIC (Wide 0.3 Inch) | ||
| LTC4260ISW#TRPBF | 24-Lead SOIC (Wide 0.3 Inch) | ||
| LTC4260IUH#PBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) | ||
| LTC4260IUH#TRPBF | 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 10, 2022 - 22_0177 Laser Top Mark Conversion for QSOP20_24_28 Assembled in ADPG [PNG] and UTL |
||
| LTC4260CGN#PBF | PRODUCTION | |
| LTC4260CGN#TRPBF | PRODUCTION | |
| LTC4260IGN#PBF | PRODUCTION | |
| LTC4260IGN#TRPBF | PRODUCTION | |
|
Aug 10, 2022 - 22_0176 Laser Top Mark Conversion for SOIC_W Packages Assembled in ADPG [PNG] and UTL |
||
| LTC4260CSW#PBF | PRODUCTION | |
| LTC4260CSW#TRPBF | PRODUCTION | |
| LTC4260ISW#PBF | PRODUCTION | |
| LTC4260ISW#TRPBF | PRODUCTION | |
|
Jan 20, 2022 - 21_0269 Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products |
||
| LTC4260CUH#PBF | PRODUCTION | |
| LTC4260CUH#TRPBF | PRODUCTION | |
| LTC4260IUH#PBF | PRODUCTION | |
| LTC4260IUH#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Ideal Diodes and PowerPath Controllers 1 | ||
| LTC4355 | RECOMMENDED FOR NEW DESIGNS | Positive High Voltage Ideal Diode-OR with Input Supply and Fuse Monitors |
| MOSFET & Gate Drivers 1 | ||
| LTM9100 | NOT RECOMMENDED FOR NEW DESIGNS | Anyside™ High Voltage Isolated Switch Controller with I2C Command and Telemetry |
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC4260
Linduino 3
LTpowerPlay®
LTpowerPlay® is a powerful, Windows-based development environment supporting Linear Technology's Digital Power System Management (PSM) products.
Open ToolLTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
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.
Evaluation Kits
LTC4260CGN | 200W Positive 48V Hot Swap Controller With Current and Voltage Monitoring (requires DC590)
Resources
Reference Designs
