MIC2592B-2YTQ

Features:	Latched Fault, SMBus, Thermal Limit, UVLO
Base Part Number:	MIC2592B
Feature Pins:	--
Supplier Device Package:	48-TQFP (7x7)
Package / Case:	48-TQFP
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C
Current - Output (Max):	--
Voltage - Supply:	3 V ~ 3.6 V, 11 V ~ 13 V
Programmable Features:	Current Limit, Fault Timeout, Slew Rate
Series:	--
Applications:	PCI Express®
Internal Switch(s):	Both
Number of Channels:	6
Type:	Hot Plug Controller
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tray

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PMIC - Hot Swap Controllers

The MIC2592B-2YTQ is a single-path hot swap controller from the company Microchip Technology (formally known as Micrel, Inc.) The TE (transition enable) version provides an additional output for the purpose of providing a Reset signal for the hot swap application per the requirements of ATCA (Advanced Telecom Computing Architecture).

The objective of a hot swap application is to ensure that the power is applied to the load at a rate that will not cause inrush currents or voltage dips. This is achieved via a mechanism such as a MOSFET that is slowly ramped up to its linear operating region. The MIC2592B-2YTQ is one such solution that provides Smart Hot Swap functionality that enables a DC voltage to be applied to the load with a gradual ramp-up. This prevents voltage dips and inrush current. The MIC2592B-2YTQ provides both undervoltage and overvoltage protection to the load.

When used in an ATCA system, the MIC2592B-2YTQ would monitor the DC rail. When the DC rail exceeded a set level (for a rack-level ATCA system this would typically be 12V or greater), a signal needs to be sent from the board to the chassis to indicate that the board is ready for operation. The TE version of the MIC2592B-2YTQ provides an additional output for the purpose of providing this Resep signal.

In addition to the MIC2592B-2YTQ, Microchip offers other related hot-swap solutions such as the MIC2592A-2YSQ, which provides overvoltage protection and current-limit protection, as well as the MIC2593-2YTQ, which provides overvoltage protection, current-limit protection, and MOSFET fault protection. These devices are designed to provide circuit protection while still allowing a board-level power rail to be adjusted while a system is powered on.

The MIC2592B-2YTQ is an ideal solution for situations where a single rail must be monitored for faults, and the user needs to detect when the voltage is stable. It features over and undervoltage monitoring of the rail to protect against current spike, as well as fault monitoring of the MOSFET to prevent sustained out-of-limits conditions. When used in an ATCA system, the TE version additionally provides a Reset signal for the hot swap application.

The MIC2592B-2YTQ is available in a 4mm × 4mm QFN package and is specified for operation from a -40°C to +125°C junction temperature range. It operates as low as 2.1V, with an overvoltage protection limit up to 28V. The device is packaged in a space-saving 4mm × 4mm QFN package. It is available in both the hot-swap and transition-enable versions, with the transition-enable version offering an additional output for providing a Reset signal for the hot swap application. It also offers adjustable current limiting and fault monitoring output. This device makes it easy to integrate Smart Hot Swap protection into existing designs.

Overall, the MIC2592B-2YTQ is a versatile single-path hot swap controller from Microchip Technology that provides a cost-effective, space-saving solution for hot swap applications. It offers overvoltage and undervoltage protection, as well as MOSFET fault protection and an optional Reset signal for ATCA applications. It is specified for operation from a -40°C to +125°C junction temperature range and is available in a 4mm × 4mm QFN package. This makes the MIC2592B-2YTQ an ideal choice for cost-sensitive applications.

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