lmv8172 National Semiconductor Corporation, lmv8172 Datasheet

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lmv8172

Manufacturer Part Number
lmv8172
Description
Vertical Deflection Output Amplifier
Manufacturer
National Semiconductor Corporation
Datasheet
© 1997 National Semiconductor Corporation
LMV8172
Vertical Deflection Output Amplifier
General Description
The LMV8172 is a monolithic amplifier for driving the vertical
deflection yoke of a CRT. The IC is a differential input, single-
ended output amplifier with a flyback generator. This archi-
tecture minimizes the power dissipation during forward scan-
ning without slowing down the flyback.
The LMV8172 is packaged in a 7-pin TO-220 power pack-
age.
Connection Diagram
DS100010
See NS Package Number TA07B
Order Number LMV8172T
FIGURE 1. Top View
Features
n High output current
n Flyback generator
n Minimum external part count
n Works with single or dual supplies
n Low cross-over distortion
Applications
n Vertical deflection for monitors and TVs
www.national.com
May 1997
DS100010-1

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lmv8172 Summary of contents

Page 1

... CRT. The differential input, single- ended output amplifier with a flyback generator. This archi- tecture minimizes the power dissipation during forward scan- ning without slowing down the flyback. The LMV8172 is packaged in a 7-pin TO-220 power pack- age. Connection Diagram © 1997 National Semiconductor Corporation ...

Page 2

... I = −0.7A 5 JMAX = (T − the number given in the Absolute Maximum Ratings, whichever is lower. For D JMAX the LMV8172 is 3˚C/W. JC resistor. = +15V and V = −15V, V set so the device is drawing equal amounts of current from both CC1 EE IN+ 2 20W and T (Note 4) JC ...

Page 3

Test Circuits FIGURE 2. FIGURE 3. 3 DS100010-2 DS100010-3 www.national.com ...

Page 4

... FIGURE 5. electrolytic capacitors used on the V should be 470 µF or greater. The ground traces should also be as wide as possible. The diode and optional capacitor should be located close to the LMV8172T. The diode should and be a fast-recovery type, the 1N4937 recommended has a t CC1 of 150 ns. The capacitor is optional, it may be needed in some PCB layouts ...

Page 5

Application Hints (Continued) Typical Application FIGURE 6. FIGURE 7. 5 DS100010-6 DS100010-7 www.national.com ...

Page 6

... Italiano National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. Order Number LMV8172T NS Package Number TA07B 2. A critical component in any component of a life support ...

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