The LTC4253IGN#PBF is a robust negative voltage Hot Swap™ controller designed by Linear Technology to enable safe board insertion and removal from a live backplane. This high-performance component is housed in a 16-lead SSOP package and is specifically engineered to manage the electronic circuitry's power supply during hot swapping, preventing glitches and transients that can damage the system.

Key Features

• Hot Swap Control: The LTC4253IGN#PBF allows a board to be safely removed and inserted into a live backplane, providing control over the power delivery to the circuits during the hot-swap event.
• Voltage Range: It operates with negative supply voltages ranging from -48V, making it suitable for telecom and datacom applications that utilize negative voltage supplies.
• Adjustable Current Limit: The product features an adjustable current limit which ensures protection against overcurrent conditions, enhancing system reliability.
• Gate Voltage Clamping: To protect external MOSFETs, the controller provides gate voltage clamping, ensuring that the gate-source voltage does not exceed safe operating levels.
• Circuit Breaker Functionality: It includes a circuit breaker function that trips based on the duration of the overcurrent condition, which is programmable via an external timing capacitor.
• Undervoltage Lockout: The LTC4253IGN#PBF is equipped with an undervoltage lockout (UVLO) feature, which ensures that the device operates only when the supply voltage is within an acceptable range.
• Thermal Shutdown: An additional layer of protection is provided by the thermal shutdown mechanism, which prevents the device from overheating.

Applications

The LTC4253IGN#PBF is ideal for a wide range of applications, especially in the telecommunications and data communications sectors where negative supply voltages are common. It is also suitable for use in high-availability systems, industrial controls, and server hot swap environments.

Quality and Reliability

Linear Technology is known for their high-quality products and the LTC4253IGN#PBF is no exception. It is designed to meet stringent industry standards, ensuring reliability and performance in critical applications.