LTC1647-1IS8#TRPBF - Linear Technology

The LTC1647-1IS8#TRPBF is a sophisticated dual Hot Swap™ controller designed by Linear Technology, now part of Analog Devices, that allows safe board insertion and removal from a live backplane. This electronic component is housed in an 8-lead narrow SO package, with a part number that ends with "TRPBF" indicating tape and reel packaging and lead-free manufacturing.

This device is specifically engineered to control the power supply to two separate supply voltages in a system, ensuring that electronic circuitry is protected from the abrupt surges in current that can occur when a board is inserted into a live power backplane. It operates over a wide range of voltages, from 1.2V to 12V, which makes it versatile for various applications, including servers, data storage systems, and telecommunications equipment.

The LTC1647-1IS8#TRPBF is equipped with a number of safety and convenience features. It includes independent turn-on and turn-off circuitry for each supply, providing precise control over the sequencing of the system power-up and power-down processes. An adjustable current limit function protects the device and downstream components from excessive current, while circuit breakers provide additional protection against overcurrent conditions.

The controller also offers a programmable timer for overcurrent auto-retry, which can be set to allow the system to attempt to power up again after a fault condition has been cleared. This is particularly useful in systems that require high reliability and uptime. Additionally, the LTC1647-1IS8#TRPBF features power good output signals, which provide real-time feedback on the status of each supply voltage, ensuring that the system is operating within safe parameters before enabling sensitive downstream loads.

Overall, the LTC1647-1IS8#TRPBF is a robust and reliable solution for power management in complex electronic systems, offering protection, flexibility, and control to designers and engineers seeking to enhance system safety and maintainability.