The LTC4252BCMS-2#PBF is a sophisticated negative voltage hot swap controller designed by Linear Technology, now part of Analog Devices, to safely manage the insertion and removal of boards in live backplane systems. This component is specifically engineered to operate with a supply voltage range of -48V, which is a standard in telecom and server applications. The device helps to prevent damage to electronic components that can occur due to sudden surges or arcs when connecting or disconnecting boards under power.

Key Features

• Integrated Charge Pump: The LTC4252BCMS-2#PBF features an onboard charge pump that enables the controller to drive an external N-channel MOSFET, effectively controlling the power to the load without the need for an additional external power source.
• Adjustable Current Limit: Users can set the current limit threshold through an external resistor, allowing customization for different board requirements and ensuring protection against overcurrent conditions.
• Timer-Controlled Circuit Breaker: This device includes a timer that can be programmed to limit the duration of fault conditions, such as overcurrent, thereby preventing prolonged stress on the system.
• Under-Voltage and Over-Voltage Protection: The LTC4252BCMS-2#PBF provides both under-voltage and over-voltage lockout features, which ensure that the electronic system operates within a safe voltage range.

Applications

The LTC4252BCMS-2#PBF is ideal for a variety of applications that require reliable power management and protection. Its robust design is particularly suitable for:

• Telecom and Networking Equipment
• Server and Data Storage Systems
• Industrial Equipment
• High-Availability Systems

Product Specifications

The LTC4252BCMS-2#PBF comes in a compact MSOP-10 package, providing a space-efficient solution for dense PCB layouts. It operates over a temperature range of -40°C to +85°C, ensuring reliability and performance even in harsh environmental conditions. The device's "glitch" filter avoids nuisance trips due to transient conditions, enhancing system stability and uptime.

With its combination of features, the LTC4252BCMS-2#PBF from Linear Technology offers a robust and reliable solution for hot swap applications, providing both protection and control in a single integrated package.