LTC4286
High Power Positive Hot-Swap Controller with Power Monitor via PMBus
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Overview
Features and Benefits
- 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
Product Details
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
Product Categories
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 & Resources
Tools & Simulations
LTspice
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LTC4286
Design Resources
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LTC4286 Discussions
Sample & Buy
Ordering FAQs
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Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
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Sampling
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Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.