ADD8504WRUZ-REEL7

Overview

The ADD8504WRUZ-REEL7 is a four-channel LCD gamma reference buffer designed for line inversion panels. It operates on a single supply voltage ranging from 3.3 V to 6.5 V and features rail-to-rail input and output capabilities. The device provides a high output current of up to 380 mA and maintains a low supply current of 3.8 mA. It supports stable operation with 1 nF loads and functions within a temperature range of −40°C to +105°C. Packaged in a 16-lead Pb-free TSSOP, it includes A/B inputs for selecting between two gamma voltage curves.

Feature Summary

• Features muxed A/B inputs to select between two external gamma voltage curves for display correction.
• Provides high output drive capability with a maximum short-circuit current of 380 mA.
• Supports stable operation with capacitive loads up to 1 nF while maintaining low power consumption.
• Designed for automotive applications with qualified reliability standards.

Applications

• LCD line inversion gamma references
• Car navigation panels
• Personal media player panels
• Automotive infotainment systems

Procurement Notes

Verify the specific REEL7 suffix indicates a 7-inch tape and reel packaging format containing 1,000 units per manufacturer specifications. Confirm RoHS compliance status through official documentation. Ensure the component matches the commercial grade specifications rather than the automotive variant, which utilizes different ordering codes.

Selection Notes

Select this component when driving column driver gamma inputs in line inversion LCD panels requiring dual curve selection. The 16-lead TSSOP package suits space-constrained designs. Verify that the required output current does not exceed the 380 mA limit and that the application benefits from the low 3.8 mA supply current characteristic.

Part Context

This part belongs to the ADD8504/ADD8505/ADD8506 series of multi-channel LCD gamma buffers. While the ADD8505 offers five channels and the ADD8506 provides six, the ADD8504 specifically delivers four buffered channels. All variants share similar electrical characteristics and are intended for identical display driver applications.

Replacement Considerations

The ADD8504WRUZ serves as the tube-packaged equivalent. For automotive-grade requirements, the ADD8506WWARUZR7 is the designated alternative, though it contains six channels instead of four.

FAQ

How is the gamma voltage curve selected?

Selection is controlled by the A/B logic input pin. A logic high selects Input A (INA), while a logic low selects Input B (INB).

What is the maximum load capacitance the device can drive stably?

The datasheet specifies that the outputs are stable with capacitive loads up to 1 nF.