LA78040 IC Integrated Circuit Chip TV and CRT Display Vertical Output IC with Bus Control Support

Monolithic Linear IC

LA78040N

TV and CRT Display Vertical Output IC with Bus Control Support

Overview

The LA78040N 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 LA78040N to a Sanyo LA768X series or LA769XX series bus control system signal-processing IC.

Since the LA78040N provides a maximum deflection current of 1.7Ap-p, it is optimal for small and medium size CRTs.

Functions

• Built-in pump-up circuit for low power dissipation.

• Vertical output circuit.

• Thermal protection circuit

Maximum Ratings at Ta = 25°C

Package Dimensions

Block Diagram

Application Circuit Example 1 (Single power supply)

Application Circuit Example 2 (Dual power supply)

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