D78040 Datasheet PDF – Display Vertical Output IC

Part Number: D78040 ( LA78040 = ICLA78040 = IC LA78040B )

Function: Vertical Deflection Output IC

Package: TO-220-7 Pin Type

Manufacturer: Huajing



The D78040 is TV and CRT Display Vertical Output IC with Bus Control Support.

The LA78040 ( = D78040 ) is a vertical deflection output IC for high image quality TV and CRT displays that supports the use of a bus control system signal-processing IC.

The sawtooth waveform from the bus control system signal-processing

IC can directly drive the deflection yoke (including the DC component). Color TV vertical deflection system adjustment functions can be controlled over a bus system by connecting the LA78040 to a Sanyo LA768X series or LA769XX series bus control system signal-processing IC.

Since the LA78040 provides a maximum deflection current of 1.8Ap-p, it is optimal for small and medium size CRTs.


1. Flyback generator

2. Thermal protection circuit

3. Low cross-over distortion

4. Supports DC Coupling

5. Vertical output circuit

Block Diagram and pinout :


D78040 Datasheet PDF

D78040 pdf