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Ordering number: EN 5145
Monolithic Linear IC
LA7832
Color TV Vertical Deflection Output Circuit
Overview
The LA7832 is a monolithic linear IC for vertical deflection output for small and mid-sized color television sets that requires few external components and dissipates little power. When used in conjunction with the LA7620 series of video chroma deflection ICs, the LA7800 series of deflection ICs, and the LA7850 series of display ICs, it is possible to create a stable and compact vertical output deflection circuit.
Package Dimensions
unit : mm
3075-SIP7H
[LA7832]
18.0 3.4 3.0
Features
. High output. . Low power dissipation due to built-in pump-up circuit. . Few external components needed. . Thermal protection circuit built in.
Specifications
Maximum Ratings at Ta = 25 °C
Parameter Maximum supply voltage Deflection output current Allowable power dissipation Operating temperature Storage temperature Thermal resistance Symbol V6 max V3 max I2 max Pd max Topr Tstg j-c
1.0 min 1 1.38 2.54 0.6 7 1.0
5.8
13.4 10.8 15.0 max
0.6
1.2
SANYO : SIP7H
Conditions (Pump-up block) (Output block) With arbitrarily large heat sink
Ratings 30 62 ±1.5 8 20 to +85 40 to +150 4
Unit V V Ap-o W °C °C °C/W
Operating Conditions at Ta = 25 °C
Parameter Recommended supply voltage Operating supply voltage range Deflection output current Symbol V6 V6 I2p-p Conditions Ratings 24 10 to 27 to 1.8 Unit V V Ap-p
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
52995HA(II) No.5145-1/3
LA7832
Operating Characteristics at Ta = 25 °C, V6 = 24 V
Parameter Deflection output saturation voltage (lower) Deflection output saturation voltage (upper) Pump-up charge saturation voltage Pump-up discharge saturation voltage Idling current Midpoint voltage Symbol V(sat)2-1 V(sat)3-2 V(sat)7-1 V(sat)6-7 IDL VMID I2 I2 I7 I7 = = = = Conditions +0.9 A 0.9 A +20 mA 0.9 A min typ max 1.2 3.2 1.8 3.0 60 11.5 Unit V V V V mA V
30 9.5
10.5
Pin Assignment and Functional Block Diagram
Sample Application Circuit
LA7820 vertical output
Sample Application Circuit
LA7620 vertical output
R1* = several hundreds of ohms to 1 k *: CR used against oscillation The combination depends on the oscillation mode.
Power supply (V6) Pulse amplifier output
GND
Vertical output power supply
Oscillation stopping pin
Vertical output pin
Input pin
Pump-up
Vertical driver Thermal protector Vertical output
No.5145-2/3
LA7832
Sample Application Circuit
LA7850 vertical output
Pd max -- Ta
Tightening torque: 4 kg/cm Coated with silicone grease With arbitrarily large heat sink
Allowable power dissipation Pd max -- W
50 x 50 x 1.5 mm3 with Al heat sink
30 x 30 x 1.5 mm3 with Al heat sink
No heat sink
Ambient temperature, Ta -- °C
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 May, 1995. Specifications and information herein are subject to change without notice. PS No.5145-3/3