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Sanyo
Sanyo

LA78040 Datasheet

TV and CRT Display Vertical Output IC


LA78040 Datasheet Preview


Ordering number : EN7879A
LA78040
Monolithic Linear IC
TV and CRT Display Vertical
Output IC with Bus Control
Support
www.DataSheet4U.com
Overview
The LA78040 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 LA78040 to a Sanyo LA768X series or LA769XX series bus control
system signal-processing IC.
Since the LA78040 provides a maximum deflection current of 1.8Ap-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.
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Pump-up block supply voltage
Output block supply voltage
Allowable power dissipation
Deflection output current
Thermal resistance
Operating temperature
Storage temperature
Symbol
+B2 max
+B6 max
Pd max
I5 max
θj-c
Topr
Tstg
Conditions
Mounted on an arbitrarily large heat sink.
Ratings
34
70
9
-1.5 to +1.5
3
-20 to +85
-40 to +150
Unit
V
V
W
Ap-o
°C /W
°C
°C
Any and all SANYO Semiconductor 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 Semiconductor representative
nearest you before using any SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor 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 Semiconductor
products described or contained herein.
92706 / 90705 MS OT B8-4579 No.7879-1/4
Page 1

Operating Conditions at Ta = 25°C
Parameter
Recommended supply voltage
Operating supply voltage range
Deflection output current
Symbol
+B2
+B2op
I5p-p
LA78040
Conditions
Operating Characteristics at Ta = 25°C, +B2 = 24V
Parameter
Symbol
Conditions
Deflection output saturation
voltage (lower)
Deflection output saturation
voltage (upper)
www.DataSheet4PUu.cmopm-up charge saturation
voltage
Pump-up discharge saturation
voltage
Idling current
Vsat5-4
Vsat6-5
Vsat3-4
Vsat2-3
Idl
I5 = 0.9A
I5 = -0.9A
I3 = 20mA
I3 = 0.9A
Midpoint voltage
Vmid
Note: Current flowing into the IC is positive (+) and current flowing out is negative (-).
Package Dimensions
unit : mm
3286
Ratings
24
16 to 33
To 1.8
Unit
V
V
Ap-p
Ratings
min typ max
Unit
1.3 V
3.2 V
1.8 V
20
11.0
12.0
3.0 V
50
13.0
mA
V
No.7879-2/4
Page 2

Block Diagram
LA78040
www.DataSheet4U.com
Application Circuit Example 1 (Single power supply)
LA78040
+VCC(24V)
1234567
10k
5V
IN 10k
33k
10k
No.7879-3/4
Page 3

LA78040
Application Circuit Example 2 (Dual power supply)
www.DataSheet4U.com
+VCC
LA78040
1234567
-VCC
IN Vref
Specifications of any and all SANYO Semiconductor 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 Semiconductor 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 Semiconductor 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 Semiconductor 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 Semiconductor 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 Semiconductor 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 September, 2005. Specifications and information herein are subject
to change without notice.
PS No.7879-4/4
Page 4
Part Number LA78040
Manufactur Sanyo
Description TV and CRT Display Vertical Output IC
Total Page 4 Pages
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LA78040 , LA78040 , LA78040B , LA78040N , LA78040N , LA78041 , LA78041 , LA78041 , LA78045 , LA78045 ,

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