MAX34451ETNA2+T

The MAX34451ETNA2+T from Analog Devices is an advanced power-supply system manager designed for complex power management applications. This device can monitor up to 16 different voltage rails or currents, providing comprehensive oversight of system power status. It also offers sequencing and margining capabilities for up to 12 power supplies, enabling precise control during power-up and power-down sequences.

The system manager continuously checks power-supply output voltages and currents against user-programmable threshold limits. If a fault is detected, it initiates an orderly system shutdown. The device supports flexible sequencing in any order and features automatic closed-loop margining for power-supply output voltages. It includes an internal temperature sensor and can support up to four external remote temperature sensors, allowing for robust thermal monitoring.

With a supply voltage range of +3.0V to +3.6V and an operating temperature range of -40°C to 85°C, the MAX34451ETNA2+T is suitable for demanding environments. It communicates via a PMBus-compliant command interface, simplifying integration into existing systems. The device is housed in a 56-WFQFN exposed pad package and is designed for surface mounting.

Key features include 16 channels for voltage or current monitoring and 12 channels for sequencing and margining. It supports up to 5 temperature sensors (1 internal, 4 remote) and offers fast fault detection. The device can operate autonomously once configured, reducing host intervention.