lm2467 National Semiconductor Corporation, lm2467 Datasheet
lm2467
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lm2467 Summary of contents
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... LM2467 Monolithic Triple 7.5 ns CRT Driver General Description The LM2467 is an integrated high voltage CRT driver circuit designed for use in color monitor applications. The IC con- tains three high input impedance, wide band amplifiers which directly drive the RGB cathodes of a CRT. Each channel has its gain internally set to − ...
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... No AC Input Signal (Note 6), 10% to 90% (Note 6), 90% to 10% (Note 3.5V < 10 sec.) (Note 2) +60V to +85V +8V to +15V +0V to +3.75V +15V to +75V −20˚C to +100˚C LM2467 Min Typical Max −18 −20 −22 1 300˚C ...
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... Note load includes parasitic capacitance. Figure 2 shows a typical test circuit for evaluation of the LM2467. This circuit is designed to allow testing of the LM2467 environment without the use of an expensive FET probe. The two 2490 resistors form a 200:1 divider with the 50 resistor and the oscilloscope ...
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... Typical Performance Characteristics (25V−65V), Test Circuit - Figure 2 unless otherwise specified) FIGURE OUT FIGURE 4. Speed vs Temp. FIGURE 5. LM2467 Pulse Response www.national.com ( DS200078-4 FIGURE 6. Power Dissipation vs Frequency IN DS200078-5 DS200078-6 FIGURE 8. Speed vs Load Capacitance ...
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... LM2467 operates with 80V and 12V power supplies. The part is housed in the industry standard 9-lead TO-220 molded plastic power package. The circuit diagram of the LM2467 is shown in Figure 1 . The PNP emitter follower, Q5, provides input buffering. Q1 and Q2 form a fixed gain cascode amplifier with resistors R1 and R2 setting the gain at − ...
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... Application Hints (Continued) FIGURE 9. One Channel of the LM2467 with the Recommended Arc Protection Circuit OPTIMIZING TRANSIENT RESPONSE Referring to Figure 9 , there are three components (R1, R2 and L1) that can be adjusted to optimize the transient re- sponse of the application circuit. Increasing the values of R1 and R2 will slow the circuit down while decreasing over- shoot ...
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... LM2467 to the blue cathode. Note that the components are placed so that they almost line up from the output pin of the LM2467 to the blue cathode pin of the CRT connector. This is done to minimize the length of the video path between these two components ...
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Application Hints (Continued) www.national.com 8 ...
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Application Hints (Continued) 9 www.national.com ...
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Application Hints (Continued) www.national.com FIGURE 12. LM126X/LM246X Demo Board Layout 10 DS200078-13 ...
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Application Hints (Continued) FIGURE 13. Trace Routing and Component Placement for Blue Channel Output DS200078-14 11 www.national.com ...
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... 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. inches (millimeters) unless otherwise noted NS Package Number TA09A Order Number LM2467TA 2. A critical component is any component of a life support device or system whose failure to perform ...