ADM1278-1AACPZ-RL

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The ADM1278-1AACPZ-RL is a power management integrated circuit (PMIC) hot swap controller from Analog Devices (ADI). The ADM1278-1AACPZ-RL is designed to protect both the load and the power supply from over or under-voltage faults. It reduces current surge and operates in a very low shutdown current state. It also has an advanced overcurrent protection circuit with adjustable current limit and thermal shutdown.

The ADM1278-1AACPZ-RL provides control and monitoring functions for hot-swapping and load mating and demating applications. It is used to control the power supply voltage to electronic loads such as blades, backplanes, and peripheral components. The ADM1278-1AACPZ-RL can provide power to loads for up to 5s when the main power is removed. This device has a wide input voltage range of 6V to 28V and can provide an adjustable slew rate of up to 500kHz to minimize in-rush current.

The ADM1278-1AACPZ-RL’s hot swap circuitry integrates current limiting, an overtemperature shutdown, and a fault indication output (EN). These features make the ADM1278-1AACPZ-RL ideal for applications that require safe handling of an unknown load. The current limit can be adjusted between 1A and 8A using a single external resistor.

The ADM1278-1AACPZ-RL also features low quiescent current, low voltage operation, and low dropout voltage. It has an operating temperature range of -40°C to +85°C. The device’s typical quiescent current is 3µA and the typical dropout voltage is 0.25V at 1.4A. It features short-circuit protection for up to 5s and an adjustable current limit.

The ADM1278-1AACPZ-RL operates using P-channel MOSFETs, which help reduce EMI emissions. The P-channel MOSFETs also allow the ADM1278-1AACPZ-RL to be used in negative ground systems. The device also has outputs that can be used to indicate current limiting or overtemperature fault conditions.

To ensure that the load is supplied with clean power, the ADM1278-1AACPZ-RL also features voltage regulation and filter protection. The voltage regulation feature allows the device to maintain a constant output voltage, providing the load with a stable power supply. The filter protection feature provides noise suppression and helps reduce EMI noise.

In summary, the ADM1278-1AACPZ-RL is a PMIC hot swap controller from ADI. It is designed to protect the load and power supply from over or under-voltage faults. The device has a wide input voltage range and adjustable slew rate. It also features current limiting, overtemperature shutdown, fault indication output, low quiescent current, and voltage regulation. The ADM1278-1AACPZ-RL is an ideal solution for applications that require safe handling of an unknown load.

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