MAX14650EZA+T

Overview

The MAX14650EZA+T is a USB Host Adapter Emulator IC manufactured by Analog Devices Inc./Maxim Integrated. It integrates a USB switch and advanced CDP emulation to facilitate host identification in automotive applications. The device operates with a supply voltage range of 3 V to 5.5 V and features a single DPDT switch configuration. Key electrical parameters include a maximum on-resistance of 6.5 Ohms, a bandwidth of 1 GHz, and a quiescent current of 200 uA. It supports switching speeds with a maximum turn-on time of 20 us and turn-off time of 1 us. The component is housed in an 8-pin TDFN package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates USB host adapter emulation for automatic device charging protocol detection
• Includes a high-bandwidth USB switch for data line protection and routing
• Designed specifically for automotive infotainment and connectivity systems

Applications

• Automotive head unit USB port implementation
• In-vehicle infotainment system host interfaces
• USB docking station emulation for mobile devices

Procurement Notes

Verify the specific suffix 'EZA+T' against the official datasheet to confirm the tape-and-reel packaging and lead-free status. Confirm that the operating temperature grade matches the design requirements for automotive environments. Check for any recent lifecycle notices regarding obsolescence or last-time buy dates from the manufacturer.

Selection Notes

Select this component when a combined solution for USB host identification and signal switching is required in space-constrained designs. Ensure the input voltage does not exceed the absolute maximum ratings during transient events. Consider the thermal performance of the TDFN package if multiple units are placed in close proximity within the enclosure.

Part Context

This part belongs to the Maxim Integrated USB power management family, designed to simplify USB compliance in automotive electronics. It replaces discrete resistor networks and external switches previously used for host emulation. The integration reduces board space and improves reliability by minimizing external component count in the USB interface circuitry.

Replacement Considerations

Consult the official cross-reference list for direct pin-compatible alternatives. Verify that any substitute maintains the same CDP emulation logic and switch isolation characteristics. Ensure the replacement package matches the TDFN-8 footprint for mechanical compatibility.