ADM1278-1BCPZ

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PMIC - Hot Swap Controllers are electronics components used in power management and control applications. The ADM1278-1BCPZ is a hot swap controller suitable for a variety power management applications. It is part of the Analog Devices (ADI) family of Hot Swap Controllers, developed for the safe insertion and removal of power-loads in the hot-swappable systems, such as those found in telecom, computer, and industrial applications.

The ADM1278-1BCPZ works by controlling high current switching devices, such as MOSFETs, FETs, N-Channel MOSFETs, and IGBTs. It is designed to provide a fast current limitation with over-power protection, as well as over-temperature protection. The ADM1278-1BCPZ is also able to handle a wide input voltage range, and can operate in either PWM or linear control modes.

The ADM1278-1BCPZ has an adjustable current limit and over temperature threshold, a single-wire power up, and a dedicated output track for external current sensing. It is built to withstand a wide ambient temperature range, and is housed in a 16-pin TSSOP package. The device has an integrated architecture that is optimized for switched-mode power supply/converter systems, including automotive applications.

The ADM1278-1BCPZ has a minimum on-resistance of 6.5mΩ, a maximum on-resistance of 10mΩ, a maximum gate drive voltage of 4.1 V across a range of temperature and a minimum gate drive current of 20mA. Its gate drive is bidirectional, operating from the high side gate drive to the low side gate drive. The device also has cycle-by-cycle current limiting to protect the system from over-currents.

In operation, the ADM1278-1BCPZ monitors the input voltage and adjusts its output voltage to a preset level. When the output exceeds the preset value, the ADM1278-1BCPZ limits the current, shutting down the system until its output voltage drops below the preset level. Additionally, the ADM1278-1BCPZ continuously monitors the temperature and will shut down the system if the detected temperature exceeds the preset value.

The ADM1278-1BCPZ is best suited for applications where hot swapping may occur, such as telecommunications, industrial, and computer systems. The device can help with power delivery and management, current sensing, over-voltage and over-current protections. It is an ideal solution for any system that requires current and temperature monitoring in order to safely and efficiently manage high current loads.

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