The LTC4253AIGN-ADJ#PBF is a sophisticated negative voltage hot swap controller designed by Linear Technology to manage the insertion and removal of boards in live system backplanes. This component is especially crucial in high-availability systems where continuous operation is paramount, and maintenance or upgrades need to be performed without powering down the system.

Key Features

• Adjustable Overcurrent Protection: Users can tailor the overcurrent protection threshold to their specific needs, ensuring that the system is safeguarded against excessive currents that could damage the board and the backplane.
• Adjustable Undervoltage Lockout (UVLO): This feature allows the setting of a specific voltage threshold below which the controller will not turn on, preventing the board from operating at dangerously low voltages that could lead to malfunction or damage.
• Gate Drive for External N-Channel MOSFET: The LTC4253AIGN-ADJ#PBF can drive an external N-Channel MOSFET, which acts as the main power switch, providing efficient control over the power connection to the board.
• Glitch Filter: The built-in glitch filter ensures that the controller does not respond to short transients, which could lead to false triggering and unnecessary system interruptions.
• 12-Pin SSOP Package: The device comes in a compact 12-pin SSOP (Shrink Small Outline Package) which is suitable for space-constrained applications.

Applications

The LTC4253AIGN-ADJ#PBF is ideal for a variety of negative voltage hot swap applications including:

• Network Servers and Storage Systems
• Telecommunications Equipment
• Industrial Systems

Product Specifications

• Manufacturer: Linear Technology
• Part Number: LTC4253AIGN-ADJ#PBF
• Negative Voltage Range: Typically -48V
• Operating Temperature Range: 0°C to 70°C
• Packaging: Tube
• Mounting Type: Surface Mount

The LTC4253AIGN-ADJ#PBF is engineered to ensure the safe and reliable operation of systems requiring hot swap capabilities. Its adjustable settings and robust protection features make it a versatile choice for managing negative voltage power supplies in critical applications.