Ordering number: EN 5145
Monolithic Linear IC
LA7832
Color TV Vertical Deflection Output Circuit
Overview Package Dimensions
unit : mm
The LA7832 is a monolithic linear IC for vertical deflection
output for small and mid-sized color television sets that 3075-SIP7H
requires few external components and dissipates little power.
When used in conjunction with the LA7620 series of video [LA7832]
chroma deflection ICs, the LA7800 series of deflection ICs, 18.0 3.0
and the LA7850 series of display ICs, it is possible to create a 3.4
stable and compact vertical output deflection circuit.
15.0 max
13.4
10.8
Features
. High output.
. Low power dissipation due to built-in pump-up circuit.
1.0 min
. Few external components needed.
5.8
. Thermal protection circuit built in. 1.38
1
2.54 0.6
7
1.0 0.6 1.2
SANYO : SIP7H
Specifications
Maximum Ratings at Ta = 25 °C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V6 max (Pump-up block) 30 V
V3 max (Output block) 62 V
Deflection output current I2 max ±1.5 Ap-o
Allowable power dissipation Pd max With arbitrarily large heat sink 8 W
Operating temperature Topr –20 to +85 °C
Storage temperature Tstg –40 to +150 °C
Thermal resistance θj-c 4 °C/W
Operating Conditions at Ta = 25 °C
Parameter Symbol Conditions Ratings Unit
Recommended supply voltage V6 24 V
Operating supply voltage range V6 10 to 27 V
Deflection output current I2p-p to 1.8 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
This datasheet has been downloaded from http://www.digchip.com at this page
LA7832
Operating Characteristics at Ta = 25 °C, V6 = 24 V
Parameter Symbol Conditions min typ max Unit
Deflection output saturation voltage (lower) V(sat)2-1 I2 = +0.9 A 1.2 V
Deflection output saturation voltage (upper) V(sat)3-2 I2 = –0.9 A 3.2 V
Pump-up charge saturation voltage V(sat)7-1 I7 = +20 mA 1.8 V
Pump-up discharge saturation voltage V(sat)6-7 I7 = –0.9 A 3.0 V
Idling current IDL 30 60 mA
Midpoint voltage VMID 9.5 10.5 11.5 V
Pin Assignment and Functional Block Diagram
Vertical driver
Pump-up
protector
Thermal
Vertical
output
Pulse amplifier
output
GND
Power supply
output pin
Vertical output
Vertical
power supply
Oscillation
stopping pin
Input pin
Sample Application Circuit (V6)
Sample Application Circuit
LA7820 vertical output LA7620 vertical output
R1* = several hundreds of ohms to 1 kΩ
*: CR used against oscillation
The combination depends on the oscillation
mode.
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
