LT1640AHCS8#PBF

LT1640AHCS8#PBF is widely used in hot swap systems and is one of the most widely used hot swap controllers on the market. It is created by Linear Technology Corporation, one of the leading PMIC manufacturers. The LT1640AHCS8#PBF is designed equipped with a variety of features and benefits that make it an ideal choice for a wide range of hot swap applications.

The LT1640AHCS8#PBF is a secondary side synchronous MOSFET hot swap controller. It features a wide input voltage range of 4.5V to 12V. It utilizes an external winding for a synchronous rectifier to improve efficiency and minimize stress on the input supply. The synchronous rectifier operates in an LDO mode, allowing the device to be used in applications where the input supply has negative voltage nets/rails.

The LT1640AHCS8#PBF is equipped with three separate current regulation blocks. The primary current regulation block is the second stage of the device and offers current monitoring and control, over-voltage and under-voltage protection, and current foldback. The other two current regulation blocks are adjustable voltage regulation which can be implemented to provide regulation based on varying load conditions. These two current regulation blocks also provide over-current and open-drain output protection.

The LT1640AHCS8#PBF also offers comprehensive protection features such as thermal shutdown, under-voltage lockout, and over-voltage protection. It features a dedicated low voltage detection circuit for control of low battery supply and is capable of detecting when the input voltage reaches 4.2V. This feature prevents the device from initiating charging until the input has stabilized.

The LT1640AHCS8#PBF also implements a high-performance, low-cost architecture, which allows it to be used in a wide variety of applications, ranging from DSPs to FPGAs, and CPU subsystems. The device is fully specified for high operating temperature and features an EN control pin which extends the switch-on time, allowing the device to be used in applications that require long wake-up times. The device has a low minimum- on-time and supports near-instantaneous current turn-on, allowing it to be used in applications that require fast current turn-on and current limiting.

The LT1640AHCS8#PBF is an ideal solution for a wide range of hot swap applications. Its wide input voltage range and high-performance, low-cost architecture, makes it an affordable and reliable choice. It’s comprehensive protection features ensure that the device is optimized for a variety of hot swap applications. The device is fully specified for high operating temperature and features an EN control pin for extension of switch-on time, allowing the device to be used in applications that require long wake-up times. Along with its wide range of features and benefits, the LT1640AHCS8#PBF makes it an ideal choice for a variety of hot swap applications.