BT817AQ-T

Overview

The BT817AQ-T is an automotive-graded EVE4 graphics controller IC from Bridgetek, designed for high-performance embedded video applications. It integrates the Advanced Single Chip Technology (ASTC) engine and supports external capacitive touch interfaces. The device operates within a supply voltage range of 3.0 V to 3.6 V, with a typical operating current of 30 mA. It features SPI interface connectivity and is housed in a 64-pin VQFN package. Certified under AEC-Q100 standards, it ensures reliability across a wide temperature range of -40°C to +105°C, making it suitable for demanding industrial and automotive environments.

Feature Summary

• AEC-Q100 Qualified: Device Temperature Grade 2 (-40°C to +105°C)
• EVE4 Graphics Engine: Integrated ASTC technology for efficient rendering
• Touch Interface: Supports external capacitive touch controllers
• Package: 64-pin VQFN (VQFN-64) for surface mount installation

Applications

• Automotive infotainment systems requiring robust thermal performance
• Industrial HMI panels with capacitive touch input
• Medical display devices needing certified component reliability
• Smart home control panels operating in variable temperatures

Procurement Notes

Verify the specific suffix 'T' indicates Tray packaging when ordering, as distinct from the 'R' Reel variant. Confirm AEC-Q100 Grade 2 qualification aligns with system thermal requirements. Check moisture sensitivity levels prior to soldering. Ensure SPI interface compatibility with the host microcontroller. Validate that the 64-pin VQFN footprint matches the PCB design constraints.

Selection Notes

Select the BT817AQ-T over non-automotive variants when extended temperature ranges are mandatory. Compare against BT817Q-R if reel packaging is preferred for automated assembly lines. Ensure the host system provides sufficient 3.3 V power delivery within the 30 mA operational limit. Verify that the application utilizes capacitive rather than resistive touch, as this model lacks integrated resistive touch support found in other series members.

Part Context

This component belongs to the BT817AQ series, which represents Bridgetek's automotive-grade expansion of the EVE4 family. It shares core graphical capabilities with commercial counterparts but undergoes stricter qualification processes. The 'AQ' designation specifically denotes automotive compliance, while the 'T' suffix identifies the tray packaging format used for distribution and handling.

Replacement Considerations

The BT817AQ-R serves as a direct functional substitute with identical electrical characteristics, differing only in packaging (Reel vs. Tray). For non-automotive applications, the standard BT817Q may be considered if temperature ratings allow. Cross-referencing pinouts is essential when moving between different Bridgetek EVE generations.