MAX4951AECTP+T

Signal Buffers, Repeaters, Splitters Overview

The MAX4951AECTP+T is a dual-channel bidirectional redriver designed for Serial ATA (SATA) I and SATA II signals. It operates from a single +3.3V supply with a typical operating current of 100mA in active mode and reduces to 350µA in standby. The device supports data rates up to 3.0Gbps, featuring internal 50Ω input/output termination and channel-independent digital boost controls. It provides ±8kV HBM ESD protection and includes hardware cable detection. The component is specified over a 0°C to +70°C temperature range and is housed in a 20-pin TQFN-EP package.

Signal Buffers, Repeaters, Splitters Feature Summary

• Supports SATA I/II bidirectional signal redriving with integrated OOB signaling capability
• Features hardware-based eSATA cable detection for automatic low-power standby activation
• Provides channel-independent digital output boost to compensate for PCB trace losses
• Includes ±8kV Human Body Model ESD protection on all pins

Signal Buffers, Repeaters, Splitters Applications

• Laptop Computers
• Docking Stations
• Desktop Computers
• Servers
• Data Storage/Work Stations

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm lead-free status and RoHS compliance. Ensure the exposed pad is properly connected to ground during assembly for thermal management. Confirm that the application circuit utilizes AC coupling capacitors as required by the internal termination structure.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when designing systems requiring SATA signal integrity restoration across board traces or eSATA connectors. It is suitable for environments where power sensitivity requires automatic standby modes triggered by physical cable insertion. Verify that the layout accommodates the 4mm x 4mm TQFN footprint and provides adequate thermal relief for the exposed pad.

Signal Buffers, Repeaters, Splitters Part Context

This part belongs to the MAX4951AE series of SATA redrivers manufactured by Analog Devices / Maxim Integrated. It serves as a backward-compatible replacement for the standard MAX4951 while offering enhanced ESD robustness and integrated cable detection features. The device addresses signal attenuation issues common in high-speed serial storage interfaces.

Signal Buffers, Repeaters, Splitters Replacement Considerations

The datasheet indicates pin compatibility with the MAX4951. Designers should verify that any substitute maintains the same 20-pin TQFN-EP form factor and electrical characteristics regarding boost control logic and ESD ratings.