Sanyo EP58B specifications LA7841, LA7845N

Vertical Output IC

LA7841

Overview

The LA7841 is a vertical deflection output IC for high-definition TV and CRT displays in systems that use a bus control system signal-processing IC. This IC can directly drive (including the DC component) the deflection yoke from the sawtooth wave output from the bus control system signal-processing IC. The color TV vertical deflection system adjustment function can be controlled from the bus system when this IC is used in conjunction with a SANYO LA768X or LA769XX series TV bus control system signal-processing IC.

The LA7841 provides a maximum deflection current of 2.2 A p-p, and thus is optimal for large diameter CRTs.

Functions

Low power operation achieved by using integrated charge pump circuit

Vertical output circuit

Thermal protection circuit

Excellent crossover characteristics

Supports DC coupling

Package: SIP7H

Block Diagram

Thermal					Pump UP
Protection
				-
			AMP
				+
1	2	3	4	5	6	7
GND	Ver.OUTPUT	CC	NON INV.INPUT	INVERTING INPUT	CC	PUMP UP OUT
		OUTPUT STAGE V			V

Vertical Output IC

LA7845N

Overview

The LA7845N is a vertical deflection output IC for high-definition TV and CRT displays in systems that use a bus control system signal-processing IC. This IC can directly drive (including the DC component) the deflection yoke from the sawtooth wave output from the bus control system signal-processing IC. The color TV vertical deflection system adjustment function can be controlled from the bus system when this IC is used in conjunction with a SANYO LA768X or LA769XX series TV bus control system signal-processing IC.

The LA7845N provides a maximum deflection current of 2.2 A p-p, and thus is optimal for large diameter CRTs, and can drive the CRTs used in TV sets in the 33 to 37 inch range.

Functions

Low power operation achieved by using integrated charge pump circuit

Vertical output circuit

Thermal protection circuit

Excellent crossover characteristics

Supports DC coupling

Package: SIP7H

Block Diagram

Thermal					Pump UP
Protection
				-
			AMP
				+
1	2	3	4	5	6	7
GND	Ver.OUTPUT	CC	NON INV.INPUT	INVERTING INPUT	CC	PUMP UP OUT
		OUTPUT STAGE V			V

25 SANYO TV . VCR SANYO TV . VCR 26