ADP2450ASTZ-3-R7

Power Management - Specialized Overview

The ADP2450ASTZ-3-R7 is a specialized digital power management IC designed for industrial circuit breaker applications. It integrates a boost shunt controller with power detection, a high-efficiency buck regulator, four low-offset programmable gain amplifiers (PGAs), a low-offset operational amplifier, a fast analog trip circuit, and an actuator driver. The device operates within an input voltage range of 4.5 V to 36 V, providing an adjustable output voltage down to 0.6 V and a continuous output current of 500 mA. It functions at a fixed switching frequency of 1.2 MHz and supports an operating temperature range from -40°C to +125°C.

Power Management - Specialized Feature Summary

• Integrates a boost shunt controller with programmable power detection to prevent power hiccups in CT-powered systems.
• Includes a high-efficiency buck regulator with supervisory circuitry for reliable microprocessor reset signaling.
• Features four low-offset, low-power programmable gain amplifiers for accurate wide-range current measurement.
• Combines a fast analog trip circuit and actuator driver for direct protection control without external logic.

Power Management - Specialized Applications

• Low voltage circuit breakers
• Molded case circuit breakers (MCCB)
• Current transformer (CT) powered supply systems

Power Management - Specialized Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific LQFP-48 package variant matches design requirements. Check for moisture sensitivity level compliance during storage and handling. Ensure the revision code aligns with the latest datasheet specifications before finalizing procurement orders.

Power Management - Specialized Selection Notes

Select this component when designing compact, digitally controlled circuit breakers requiring integrated power generation and signal conditioning. The LQFP-48 package offers sufficient pin count for complex control interfaces compared to smaller packages. Consider the 500 mA output capability for powering local MCU and sensor loads directly from the bus.

Power Management - Specialized Part Context

This part belongs to the ADP2450 family of specialized PMICs tailored for electrical protection devices. It consolidates multiple discrete components typically found in traditional breaker designs into a single integrated solution. The ASTZ suffix denotes the LQFP-48 package option, distinguishing it from the LFCSP-32 variant used in other models within the same functional family.

Power Management - Specialized Replacement Considerations

The ADP2450ACPZ-3-R7 serves as a package-compatible alternative using an LFCSP-32 footprint. Verify PCB layout compatibility if substituting between the LQFP-48 and LFCSP-32 variants. No other direct cross-model replacements are documented in official sources.