Analog Devices Inc. LTC4261IUFD#PBF Negative Voltage Hot Swap Controller

The LTC4261IUFD#PBF from Analog Devices Inc. is a sophisticated negative voltage hot swap controller designed to enable safe board insertion and removal from a live backplane. This component is particularly suitable for systems that require a reliable and efficient means to control the power supply connection to load circuits without causing any disruption or damage to the main electrical system.

Constructed with a QFN package, the LTC4261IUFD#PBF offers a compact footprint for space-constrained applications. The device operates over a wide voltage range, making it versatile for various applications, including telecom, datacom, and industrial systems that often deal with high-voltage environments.

Key Features:

• Integrated Charge Pump: The device's built-in charge pump controls external N-channel MOSFETs, ensuring smooth power delivery to the load during hot swap events.
• Adjustable Current Limit: Users can set the current limit threshold via an external resistor, providing flexibility to cater to different system requirements.
• Overcurrent Protection: The LTC4261IUFD#PBF features overcurrent protection that helps prevent damage to the system by interrupting the circuit if the current exceeds the predefined threshold.
• Under-Voltage and Over-Voltage Protection: The device ensures that the system is protected from voltage anomalies by disconnecting the load when input voltages fall out of the acceptable range.
• Multi-Function Timer: An onboard timer provides control over fault detection and recovery times, enhancing the system's reliability.
• Wide Operating Temperature Range: The LTC4261IUFD#PBF is designed to operate over an industrial temperature range, ensuring stability and performance in harsh environments.

Applications for the LTC4261IUFD#PBF include hot swap control for negative supply rails in servers, network routers, and other telecommunications equipment where uninterrupted service is critical. The device's ability to manage power sequencing and protect against electrical faults makes it an essential component for maintaining system integrity and uptime.

Analog Devices Inc. is known for its high-quality, reliable components, and the LTC4261IUFD#PBF is no exception. With its robust feature set and durable design, it stands as a prime choice for engineers looking to implement hot swap capabilities in their negative voltage applications.