LTC4252BIMS-2#TRPBF - Negative Voltage Hot Swap Controller

The LTC4252BIMS-2#TRPBF is a sophisticated negative voltage hot swap controller designed by Linear Technology, now part of Analog Devices, which enables safe board insertion and removal from a live backplane. This component is specifically engineered to control the power supply for electronic cards and protect both the card and the backplane from the abrupt current surges that can occur during hot swapping.

Key Features

• Wide Operating Voltage Range: The device is capable of handling a negative voltage range of -9V to -80V, making it versatile for various applications that require a negative supply voltage.
• Adjustable Current Limit: The LTC4252BIMS-2#TRPBF allows for precise setting of the overcurrent limit threshold via an external resistor. This ensures protection against excessive currents that might damage the circuitry.
• Gate Voltage Clamped at -16V: The internal gate voltage is clamped to protect the external N-channel MOSFET from overvoltage, ensuring reliability and longevity of the system.
• Automatic Retry or Latch Off: In the event of a fault condition, the controller offers a choice between automatic retry or latch-off, providing flexibility in managing system failures.
• Under Voltage and Over Voltage Protection: The device includes both under voltage and over voltage lockout features that prevent operation outside the safe operating supply voltage range.
• Multi-Function Timer: An onboard timer serves multiple functions, including controlling the circuit breaker timing, fault timer, and the duration of the under voltage lockout delay.

Applications

The LTC4252BIMS-2#TRPBF is suitable for a variety of applications where negative voltage power management is critical. This includes but is not limited to:

• Telecommunications equipment
• Network servers and routers
• Industrial systems
• Datacom and telecom racks

With its robust feature set and the ability to handle challenging power management tasks, the LTC4252BIMS-2#TRPBF is an ideal solution for ensuring the integrity and reliability of negative voltage systems during hot swap operations.