ADP2450ASTZ-2-R7

Power Management - Specialized Overview

The ADP2450ASTZ-2-R7 is a specialized industrial circuit breaker power management unit (PMU) manufactured by Analog Devices Inc. It integrates a boost shunt controller with power detection, a high-efficiency buck regulator, four programmable gain amplifiers (PGAs), a low-offset operational amplifier, an analog trip circuit, and an actuator driver. The device operates within an input voltage range of 4.5 V to 36 V and provides a fixed output voltage of 5 V at up to 500 mA. It utilizes a fixed 1.2 MHz switching frequency for the buck regulator and functions reliably across a temperature range of -40°C to +125°C in an LQFP-48 package.

Power Management - Specialized Feature Summary

• Integrates a boost shunt controller with programmable power detection to prevent power hiccups
• Includes four low offset, low power consumption programmable gain amplifiers for accurate current measurement
• Features a fast analog trip circuit and integrated actuator driver for direct control applications

Power Management - Specialized Applications

• Low voltage molded case circuit breakers (MCCB)
• Current transformer (CT) powered supply systems
• Industrial circuit breaker protection units

Power Management - Specialized Procurement Notes

Verify component authenticity through authorized Analog Devices channels or certified distributors. Confirm the specific suffix indicates the correct fixed 5V output variant. Ensure storage conditions account for humidity sensitivity requirements prior to surface mount assembly. Validate that the LQFP-48 footprint matches the target PCB design specifications.

Power Management - Specialized Selection Notes

Select this component when designing CT-powered circuit breakers requiring integrated signal conditioning and power generation. The fixed 5V output simplifies design compared to adjustable variants. Consider the integrated PGA accuracy for wide-range current sensing needs. Evaluate the operating temperature range against environmental constraints.

Power Management - Specialized Part Context

This part belongs to the ADP2450 family of digital power management ICs designed specifically for industrial circuit breaker applications. It consolidates multiple discrete components into a single solution, reducing board space and complexity for MCCB designs.

Power Management - Specialized Replacement Considerations

The ADP2450ASTZ-1-R7 serves as a functional substitute within the same family, differing primarily in its fixed 3.3V output voltage specification rather than core architecture.