BUF07702PWPR

Video Amps And Modules Overview

The BUF07702PWPR is a Texas Instruments LCD gamma buffer featuring six dedicated gamma correction channels and one integrated VCOM buffer. It operates within a supply voltage range of 4.5V to 16V and supports an operating temperature range of 0°C to 85°C. The device utilizes a TSSOP-20 PowerPAD package for enhanced thermal dissipation. Key electrical characteristics include a typical input offset voltage of 12mV, an input bias current of 1pA, and a supply current of 3.7mA at 25°C. Gamma buffers provide over 30mA drive capability, while the VCOM buffer delivers over 150mA.

Video Amps And Modules Feature Summary

• Integrates six gamma correction channels with one high-drive VCOM buffer
• Features rail-to-rail output swing capability for precise voltage referencing
• Designed for large capacitive load drive stability without oscillation
• Incorporates internal ESD protection circuits rated up to 4kV HBM

Video Amps And Modules Applications

• Buffering gamma correction reference voltages for LCD source drivers
• Driving the VCOM common node on LCD panels
• Providing low-impedance outputs for resistor ladder networks
• Parallel configuration for systems requiring more than ten gamma channels

Video Amps And Modules Procurement Notes

Verify the specific ordering suffix to confirm the reel quantity and tape specifications. Confirm that the PowerPAD thermal pad soldering requirements are met in the PCB layout design. Ensure the operating temperature range aligns with the system environment constraints.

Video Amps And Modules Selection Notes

Select this component when six gamma channels plus a VCOM buffer are required in a single package. Consider the BUF07703 as a recommended alternative for new designs due to updated recommendations. Evaluate the PowerPAD thermal performance against the expected power dissipation in the application.

Video Amps And Modules Part Context

This part belongs to the BUFxx702 series of LCD gamma buffers from Texas Instruments. The series includes variants with different channel counts, such as the BUF11702 with eleven channels. These devices are specialized for display driver applications requiring stable voltage references.

Video Amps And Modules Replacement Considerations

The datasheet recommends the pin-compatible BUF07703 for new designs instead of the BUF07702. Verify functional equivalence and thermal characteristics before substituting existing designs.

Video Amps And Modules FAQ

What is the maximum capacitive load the gamma buffers can drive?

The gamma buffers are designed to drive capacitances in excess of 100pF while retaining effective phase margins above 50 degrees.

How should the gamma buffers be connected to the reference voltages?

Connect Buffer 1 to the gamma voltage closest to VDD, Buffers 2 through 5 to subsequent voltages, and Buffer 6 to the voltage closest to GND.