MAX20459ATJZ/V+T

Power Management - Specialized Overview

The MAX20459ATJZ/V+T is an automotive-grade USB Type-C charge enumerator and host-charge emulator designed for high-voltage applications. It operates with a supply voltage range of 4.5V to 28V and supports output currents up to 3A. The device integrates a 28mA current limit for specific signaling functions and draws 20mA during operation. It is qualified under AEC-Q100 standards and functions within a junction temperature range of -40°C to 125°C, housed in a TQFN-EP-32 package.

Power Management - Specialized Feature Summary

• Supports USB Dedicated Charging Port (DCP) and Power Switch applications
• Integrated host-charge emulation capabilities for high-voltage systems
• Automotive qualification compliant with AEC-Q100 standards

Power Management - Specialized Applications

• USB Dedicated Charging Port (DCP)
• Power Switch implementations
• High-voltage USB charging systems

Power Management - Specialized Procurement Notes

Verify the specific suffix variant (JZ vs JA) against the design requirement, as pinout or thermal characteristics may differ between packages. Confirm AEC-Q100 compliance documentation is available for the specific lot. Ensure the TQFN-EP-32 footprint matches the PCB layout exactly. Check for any obsolescence notices from Analog Devices prior to finalizing the bill of materials.

Power Management - Specialized Selection Notes

Select this component when a robust, automotive-rated solution is required for USB Type-C charging enumeration in high-voltage environments. The integrated host-charge emulator simplifies design by handling complex handshake protocols without external microcontrollers. Consider the 3A output capability and wide input voltage range when sizing passive components for the target application circuit.

Power Management - Specialized Part Context

This part belongs to the Maxim Integrated automotive power management portfolio, specifically targeting USB charging infrastructure. It complements other DC-DC converters by providing the intelligent interface layer for USB compliance. The series emphasizes reliability in harsh automotive environments, ensuring consistent performance across the specified temperature range.

Power Management - Specialized Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Verify compatibility with existing USB controllers if considering alternative enumerators.