TDA8356/N6,112

Overview

The TDA8356 is a DC-coupled vertical deflection circuit designed for 90° and 110° color deflection systems operating at field frequencies of 50 to 120 Hz. It functions as a highly efficient Class G output bridge, utilizing two supply voltages: VP (operating) and VFB (flyback). The device accepts differential voltage inputs with a typical peak-to-peak value of 1.5 V and delivers an adjustable output current ranging from 0.5 A to 2 A. Key electrical parameters include a VP supply range of 9 V to 25 V, a maximum flyback voltage of 50 V, and a quiescent supply current of 30 mA.

Feature Summary

• Highly efficient fully DC-coupled vertical output bridge circuit
• Integrated vertical flyback switch and guard signal generation
• Built-in protection against output short-circuits and thermal overload
• High EMC immunity via common mode input configuration

Applications

• Vertical deflection circuits in 90° and 110° color CRT display systems
• Field frequency applications between 50 Hz and 120 Hz
• Integration with video processing ICs such as TDA9150, TDA9160A, and TDA8376

Procurement Notes

Verify the package designation SIL9P (SOT131-2) matches the required PCB footprint. Confirm that the supplier-device-package 9-PSIL aligns with assembly capabilities. Ensure the ordering suffix 112 corresponds to the specific tube packaging format required for production lines.

Selection Notes

Select this component when designing vertical deflection stages requiring high efficiency through Class G operation. Ensure the external feedback resistor RM allows for the desired output current swing up to 2 A. Verify compatibility with driver ICs providing symmetrical current signals and confirm that the flyback supply voltage VFB does not exceed 50 V.

Part Context

The TDA8356 belongs to the Philips/NXP family of specialized integrated circuits for consumer electronics. It serves as a power stage solution for analog television and monitor deflection systems. The part is manufactured by NXP USA Inc. and utilizes a plastic single in-line power package suitable for through-hole mounting.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.