Overview of LTC4251IS6 from Linear Technology

The LTC4251IS6 is a robust negative voltage Hot Swap™ controller integrated circuit (IC) designed and manufactured by Linear Technology, which is now part of Analog Devices. This compact and efficient controller enables safe board insertion and removal from a live backplane. It is housed in a space-saving SOT-23 package, making it an ideal choice for high-density systems where PCB real estate is at a premium.

Key Features

• Compact SOT-23 Packaging: The LTC4251IS6 comes in a tiny SOT-23 package, which is perfect for applications where space is limited.
• Wide Operating Voltage Range: This controller operates over a range of -9V to -80V, providing versatility for various system requirements.
• Adjustable Overcurrent Protection: Users can set the overcurrent trip level with an external resistor, allowing for customized protection based on the specific needs of the application.
• Gate Drive for External N-Channel MOSFET: The IC includes a gate drive for an external N-channel MOSFET, enabling efficient control of the power distribution path.
• Automatic Retry or Latch Off: The LTC4251IS6 offers a choice between automatic retry and latch-off on overcurrent fault conditions, providing flexibility in system response.
• Under Voltage Lockout: It features under-voltage lockout with hysteresis to ensure that the system operates only under acceptable power conditions.

Applications

The LTC4251IS6 is suitable for a range of applications including:

• Network servers and routers
• Telecom and datacom systems
• Industrial systems
• Hot-swap power distribution systems

Product Reliability and Support

Linear Technology is known for its high-quality products, and the LTC4251IS6 is no exception. It is designed to meet stringent industry standards, ensuring reliable performance in critical applications. Additionally, Linear Technology provides comprehensive technical support and documentation, making it easier for designers to implement the LTC4251IS6 into their systems.

With its combination of features and compact form factor, the LTC4251IS6 offers a sophisticated solution for managing power distribution in hot-swap applications, ensuring both safety and efficiency in modern electronic systems.