BUF11702PWPRG4

Video Amps And Modules Overview

The Texas Instruments BUF11702PWPRG4 is a specialized buffer array designed for LCD source driver applications. It integrates ten gamma correction channels and one VCOM buffer within a single TSSOP-28 PowerPAD package. The device operates from a supply voltage ranging from 4.5V to 16V across an operating temperature range of 0°C to 85°C. Gamma channels provide over 30mA drive current with rail-to-rail swing capabilities, while the dedicated VCOM buffer delivers more than 150mA. This configuration supports large capacitive loads and ensures stable performance for driving LCD panel reference nodes.

Video Amps And Modules Feature Summary

• Integrates ten gamma correction channels and one high-drive VCOM buffer in a single package
• Features optimized input/output stages tailored for specific gamma voltage ranges near supply rails or ground
• Capable of driving large capacitive loads while maintaining stability and phase margin
• Includes internal ESD protection circuits rated up to 4kV Human Body Model

Video Amps And Modules Applications

• Buffering gamma correction reference voltages for LCD source drivers
• Driving the VCOM common node on LCD panels
• Multi-device configurations for systems requiring more than ten gamma channels
• Low-power display interface circuits requiring high output current drive
• Applications necessitating flow-through pinout for simplified PCB routing

Video Amps And Modules Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm that the PowerPAD thermal pad is properly soldered to the copper landing pad to achieve specified dissipation ratings. Ensure PCB layout adheres to the recommended thermal design guidelines to maintain junction temperatures within safe limits during operation.

Video Amps And Modules Selection Notes

Select this component when designing LCD source drivers requiring multiple buffered gamma references and a high-current VCOM output. The fixed channel count and specific input stage characteristics require matching buffer positions to corresponding gamma voltage levels. Consider the TSSOP-28 PowerPAD package for its enhanced thermal performance compared to standard packages.

Video Amps And Modules Part Context

The BUF11702 belongs to the BUFxx702 series of gamma correction buffers manufactured by Texas Instruments. It serves as a solution for displaying video signals by providing precise voltage buffering for LCD panels. The device complements other display driver components by handling the analog reference voltage requirements necessary for accurate color reproduction.

Video Amps And Modules Replacement Considerations

The BUF07702 is a pin-compatible alternative offering six gamma channels instead of ten. However, it is not recommended for new designs; the pin-compatible BUF07703 is suggested for new implementations requiring fewer channels.

Video Amps And Modules FAQ

How should the gamma buffers be connected relative to the voltage levels?

Connect Buffer 1 to the gamma voltage closest to VDD, Buffers 2 through 5 to intermediate voltages, and Buffer 10 to the voltage closest to GND. Buffers 6 through 9 connect to the remaining higher voltages.

What is the maximum capacitive load the VCOM buffer can drive stably?

The VCOM buffer is designed to remain stable with capacitive loads up to 1000pF, as indicated by phase shift characteristics in the typical performance curves.

Does the device include protection against electrostatic discharge?

Yes, all inputs and outputs incorporate internal ESD protection circuits that prevent functional failures at voltages up to 4kV HBM, tested under MIL-STD-883C Method 3015.