Products
LTC4286
RECOMMENDED FOR NEW DESIGNSHigh Power Positive Hot-Swap Controller with Power Monitor via PMBus
- Part Models
- 6
- 1ku List Price
- Starting From $8.84
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Overview
- Wide operating voltage range: 8.5 V to 80 V
- Monitors currents, voltages, and power with ADC
- Adjustable, 5% accurate current limit: 6 mV to 20 mV
- Current foldback limits MOSFET power dissipation for overstress protection
- Monitors VGS and VDS for MOSFET health
- Peak detect registers for current, voltage, and power
- Reports input or output power
- Remote temperature sensing with programmable warning and shutdown thresholds
- ±1% accurate, 12-bit ADC for IOUT, VIN, and VOUT
- Available in 39-lead, 7 mm x 7 mm, QFN package
- Available in 48-lead, 7 mm x 7 mm, QFN package
The LTC4286 is an integrated solution for hot-swap applications allowing a board to be safely inserted and removed from a live backplane. The circuit breaker timer protects against metal-oxide semiconductor field-effect transistor (MOSFET) overheating, enabling reliable protection against overstress.
The SMBus 3.1 interface, PMBus command structure, and onboard analog-to-digital converter (ADC) with selectable averaging and speed allow monitoring of board current, voltage, power, temperature, and fault status.
The LTC4286 has additional features to respond to input undervoltage (UV) and overvoltage (OV): interrupts the host when a fault occurs, notifies when output power is good, detects insertion of a board, and auto-reboot after a programmable delay following a host commanded turn off.
APPLICATIONS
- High availability server backplane systems
- 12 V/24 V/48 V/54 V Distributed power systems
- Industrial
Documentation
Data Sheet 1
User Guide 1
Analog Dialogue 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 |
|---|---|---|---|
| LTC4286AUK#PBF | 48(39)-Lead Plastic QFN (7mm × 7mm) | ||
| LTC4286AUK#TRPBF | 48(39)-Lead Plastic QFN (7mm × 7mm) | ||
| LTC4286AUKM#PBF | 48-Lead Plastic Side Wettable QFN (7mm × 7mm) | ||
| LTC4286AUKM#TRPBF | 48-Lead Plastic Side Wettable QFN (7mm × 7mm) | ||
| LTC4286AUKS#PBF | LFCSP_SS | ||
| LTC4286AUKS#TRPBF | LFCSP_SS |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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LTspice
Models for the following parts are available in LTspice:
- LTC4286
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.