lm2425 National Semiconductor Corporation, lm2425 Datasheet
lm2425
Related parts for lm2425
lm2425 Summary of contents
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... LM2425 220V Monolithic Triple Channel 10 MHz CRT DTV Driver General Description The LM2425 is a triple channel high voltage CRT driver circuit designed for use in DTV applications. The IC contains 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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... V = 4.30V (Note 2) +100V to +230V +7V to +13V +0V to +5V +40V to +215V 110˚ pF 50˚C. DC Tests LM2425 Units Min Typ Max 121 127 133 V DC 199 205 ...
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... Note load includes parasitic capacitance. Figure 3 shows a typical test circuit for evaluation of the LM2425. This circuit is designed to allow testing of the LM2425 in a 50Ω environment without the use of an expensive FET probe. The two 4990Ω resistors form a 400:1 divider with the 50Ω resistor and the oscilloscope ...
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... Typical Performance Characteristics (60V – 190V 50˚C, Test Circuit — Figure 3 unless otherwise specified) C FIGURE OUT FIGURE 5. LM2425 Pulse Response FIGURE 6. Bandwidth www.national.com (V = +220V , 20124104 FIGURE 7. Speed vs Load Capacitance IN 20124105 20124106 FIGURE 9. Speed vs Case Temperature 4 = +12V , pF, V ...
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... Typical Performance Characteristics (60V – 190V 60˚C, Test Circuit — Figure 3 unless otherwise specified) C FIGURE 10. Power Dissipation vs Frequency (V = +220V , 20124110 FIGURE 11. Safe Operating Area 20124112 FIGURE 12. LM2425 Cathode Response 5 = +12V , pF 130V OUT 20124111 www.national.com PP ...
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... The part is housed in the industry standard 11-lead TO-220 molded plastic power package with thin leads for improved metal-to-metal spacing. The circuit diagram of the LM2425 is shown in Figure 2 . 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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... Diodes D1, D2, D4, and D7–D9 must also be used for proper arc over protection. The NSC demonstration board can be used to evaluate the LM2425 in a TV. If the NSC demonstration board is used for evaluating the LM2425, then U3, the +5V voltage regulator may be used, eliminating the need to route +5V to the neck board for the LM1246 ...
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Application Hints (Continued) FIGURE 15. LM242X/LM124X/LM2485 DTV Demonstration Board Layout 9 201241016 www.national.com ...
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Application Hints (Continued) FIGURE 16. Trace Routing and Component Placement for Blue Channel Output www.national.com 201241017 10 ...
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... English www.national.com Français Tel: +33 ( 8790 NS Package Number TE11B Order Number LM2425TE NOPB 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system affect its safety or effectiveness. ...