Datasheet > LTC4286

LTC4286

更新时间： 2024-09-18 14:57:59

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
43页	1413K
描述
High Power Positive Hot-Swap Controller with Power Monitor via PMBus

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Data Sheet

LTC4286

High Power Positive Hot-Swap Controller with Power Monitor via PMBus

FEATURES

GENERAL DESCRIPTION

► 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

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, ena-

bling reliable protection against overstress.

The SMBus 3.1 interface, PMBus command structure, and on-

board analog-to-digital converter (ADC) with selectable averaging

and speed allow monitoring of board current, voltage, power, tem-

perature, and fault status.

► Monitors V_GSand V_DSfor MOSFET health

► Peak detect registers for current, voltage, and power

► Reports input or output power

► Remote temperature sensing with programmable warning and

shutdown thresholds

The LTC4286 has additional features to respond to input undervolt-

age (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.

► ±1% accurate, 12-bit ADC for I_OUT, V_IN, and V_OUT

► Available in 39-lead, 7 mm x 7 mm, QFN package

APPLICATIONS

► High availability server backplane systems

► 12 V/24 V/48 V/54 V Distributed power systems

► Industrial

TYPICAL APPLICATION

Figure 1. 54 V, 1900 W Hot-Swap Controller

Rev. A

Information furnished by Analog Devices is believed to be accurate and reliable "as is". However, no responsibility is assumed by Analog

Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to

change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective owners.

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