Analog Devices Inc./Maxim Integrated MAX25400GTC/V+

The MAX25400 places two low-resistance USB 2.0 data switches between a low-voltage transceiver and the external connector. It supports high-speed, full-speed, and low-speed signaling while monitoring the protected HVD+ and HVD- pins for overvoltage. A detected data-line fault, BUS undervoltage, or overtemperature condition disables the switches and asserts the open-drain FAULT output.

LCDChip's original catalog package is 12-WFQFN Exposed Pad; the package register uses the same canonical name. The manufacturer's ordering table calls MAX25400GTC/V+ a 12-pin TQFN-EP, 3 mm × 3 mm. The two naming systems should not be assumed mechanically interchangeable without checking the manufacturer's package drawing, pad geometry, exposed-pad connection, and assembly requirements.

Layout checks

• Confirm the 12-pin TQFN-EP controlled land pattern, orientation, and exposed-pad grounding.
• Keep the protected HVD pair close to the connector and route the USB differential pair as controlled-impedance, length-matched traces.
• Place BUS and IN bypass capacitors close to their pins and ground return.

The referenced package JPG is currently missing from both the local image directory and the production site; verify and add the correct image before publication.

Pin assignments follow the MAX25400 Rev. 1 data-sheet pin description for the 12-pin TQFN package.

Verify pin-1 orientation, ground network, and the exact package drawing during schematic and PCB review.

Typical values are not production limits. Consult the manufacturer's electrical-characteristics table and test conditions for design margins.

No device is asserted to be a drop-in replacement for MAX25400GTC/V+. A potential alternative must be checked for USB 2.0 eye performance, connector-side short-circuit and ESD ratings, fault polarity, BUS/IN supply requirements, thermal behavior, automotive qualification, and exact land pattern. Packaging suffixes also require procurement review. No unverified internal product link is included.

MAX25400GTC/V+ is a Maxim Integrated design listed by Analog Devices. The manufacturer's product page identifies the exact orderable part, and the MAX25400 Rev. 1 data sheet defines the electrical limits, pin functions, and ordering code. The /V suffix denotes the automotive-qualified ordering option; the + suffix denotes lead-free/RoHS-compliant packaging in the ordering information.

Check the full MAX25400GTC/V+ order code, manufacturer marking, traceability, and qualification documents against purchasing requirements. Confirm that the received 12-pin exposed-pad package matches the approved footprint and that incoming inspection uses the manufacturer's current documentation.

Validate the exact MAX25400GTC/V+ ordering code, manufacturer's 12-pin TQFN-EP land pattern, exposed-pad grounding, USB signal-integrity layout, BUS and IN bypassing, upstream short-to-ground protection, and automotive qualification before design release. The LCDChip package label uses WFQFN terminology and the expected package image is missing; both require review before this page is published.