The LT1640HIS8 is a sophisticated negative voltage hot swap controller designed by Linear Technology to enable safe board insertion and removal from a live backplane. This innovative component is housed in an 8-lead SO package, offering a compact solution for systems that require negative voltage power management.

Key Features:

• Voltage Range: The LT1640HIS8 operates over a wide input voltage range, making it suitable for various applications that utilize negative supply voltages.
• Integrated Circuit Protection: With its built-in overcurrent protection and circuit breaker functionality, the LT1640HIS8 ensures the protection of both the motherboard and the cards being hot-swapped.
• Adjustable Current Limit: Users can set the current limit threshold via an external resistor, providing flexibility and precision tailored to specific system requirements.
• Timing Control: The device includes adjustable timer circuits that control the duration of the overcurrent condition before the circuit breaker trips, adding an extra layer of safety.
• Gate Drive for External N-Channel MOSFET: The controller drives an external N-Channel MOSFET, which allows for efficient control of the negative supply line during insertion and removal processes.

Applications:

The LT1640HIS8 is ideal for a variety of applications that require reliable hot swap capabilities with negative voltages. These include:

• Telecommunications equipment
• Datacom infrastructure
• Network servers and storage systems
• Industrial systems

Reliability and Performance:

Linear Technology's commitment to high-quality design and manufacturing is evident in the LT1640HIS8 controller. The device's robust feature set ensures reliable performance in demanding environments, making it a trusted choice for engineers and system designers seeking to incorporate hot swap functionality into their negative voltage systems.

For detailed specifications, application notes, and additional resources, please refer to the official Linear Technology LT1640HIS8 datasheet.