Product Overview: LT4250HCS8#TR

The LT4250HCS8#TR is a robust hot swap controller integrated circuit (IC) designed by Linear Technology, now part of Analog Devices, to manage the insertion and removal of circuit boards into live backplanes or other powered systems. This device is engineered to provide a smooth power-up sequence, thus preventing glitches and surges that can damage sensitive electronic components.

This hot swap controller is housed in a compact HCS8 package, which is ideal for space-constrained applications. It comes in a tape and reel format, denoted by the '#TR' suffix, making it suitable for high-volume automated manufacturing processes.

Key Features

• Adjustable Supply Voltage: The LT4250HCS8#TR can operate over a wide range of supply voltages, making it versatile for various system requirements.
• Electronic Circuit Breaker: It includes an electronic circuit breaker function that provides precise overcurrent protection by sensing the voltage across a sense resistor and responding to overcurrent conditions.
• Programmable Current Limit: Users can set the current limit threshold through an external resistor, allowing customization for different load requirements.
• Fast Response Time: The device features a quick response to fault conditions, ensuring rapid disconnection of the load to prevent damage.
• Gate Drive for External N-Channel MOSFET: The controller drives an external N-channel MOSFET, enabling it to control power delivery effectively.
• Overtemperature Protection: It includes a thermal shutdown mechanism to protect against excessive heat that could compromise the system's reliability.

Applications

The LT4250HCS8#TR is designed for a wide range of applications where safe and controlled power distribution is critical. It is commonly used in:

• Server and Telecom Hot Swap Systems
• Redundant Power Supplies
• Industrial Systems
• Network Switches and Routers

With its robust feature set and reliable performance, the LT4250HCS8#TR hot swap controller is an essential component for designing safe, flexible, and durable power management systems in high-availability and mission-critical environments.