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Ordering number: EN5148B

Monolithic Linear IC

LA7841
Vertical Deflection Output Circuit

Overview
The LA7841 is a vertical deflection output IC for TVs and CRT displays with excellent image quality that use a BUS control system signal processing IC. This IC can drive the direct (even including a DC component) deflection yoke with the sawtooth wave output from the BUS control system signal processing IC. When used in conjunction with Sanyo's LA7615 series of BUS control system signal processing ICs for TVs, this IC can process all color television signal system functions through the BUS system. Because the maximum deflection current is 2.2 Ap-p, the LA7841 is suited for large screen sets.

Package Dimensions
unit : mm

3075-SIP7H
[LA7841]
18.0 3.4 3.0

. Low power dissipation due to built-in pump-up circuit . Vertical output circuit . Thermal protection circuit built in . Excellent crossover characteristics . DC coupling possible
Specifications
Maximum Ratings at Ta = 25 °C
Parameter Maximum supply voltage Output block supply voltage Deflection output current Thermal resistance Allowable power dissipation Operating temperature Storage temperature Symbol VCC6 max VCC3 max I 2 max j-c Pd max Topr Tstg

1.0 min 1 1.38 2.54 0.6 7 1.0

Features

5.8

13.4 10.8 15.0 max

0.6

1.2

SANYO : SIP7H

Conditions

Ratings 34 70 ­1.5 to +1.5 4.0

Unit V V Ap-o °C/W W °C °C

With arbitrarily large heat sink

9 ­20 to +85 ­40 to +150

Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein.

SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

D1096HA(II)/61595HA(II) No.5148-1/4

LA7841
Operating Conditions at Ta = 25 °C
Parameter Recommended supply voltage Operating supply voltage range Recommended deflection output current Symbol VCC6 VCC6 op I 2 p-p Conditions Ratings 24 16 to 33 to 2.2 Unit V V Ap-p

Operating Characteristics at Ta = 25 °C, VCC6 = 24 V
Parameter Pump-up charge saturation voltage Pump-up discharge saturation voltage Deflection output saturation voltage (lower) Deflection output saturation voltage (upper) Idling current Midpoint voltage Symbol VS7-1 VS6-7 VS2-1 VS3-2 IDL VMID I 7 = 20 mA I 7 = ­1.1 A I 2 = 1.1 A I 2 = ­1.1 A 35 11.0 12.0 Conditions min typ max 1.8 3.2 1.5 3.5 65 13.0 Unit V V V V mA V

Block Diagram

No.5148-2/4

LA7841
Sample Application Circuit
(Single power supply)

Sample Application Circuit
(Double power supply)

No.5148-3/4

LA7841
Sample Application Circuit

Unit (resistance: , capacitance: F)

Specifications of any and all SANYO products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment. SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO products(including technical data,services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written permission of SANYO Electric Co., Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO product that you intend to use. Information (including circuit diagrams and circuit parameters) herein is for example only ; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties.

This catalog provides information as of December, 1996. Specifications and information herein are subject to change without notice. PS No.5148-4/4