LMT LM – Monolithic Triple NS CRT Driver, Package: to , Pin Nb=9. The is an integrated high voltage CRT driver circuit designed for use in. Download National Semiconductor Corporation LMT pdf datasheet file. LMT Datasheet PDF Download – Monolithic Triple ns CRT Driver, LMT data sheet.
|Published (Last):||20 June 2010|
|PDF File Size:||18.74 Mb|
|ePub File Size:||3.42 Mb|
|Price:||Free* [*Free Regsitration Required]|
Very important for arc protection.
This demonstrates the importance. Once the optimum values are determined. This board provides a good example of a layout that can be used as a guide for future layouts. catasheet
(PDF) LM2439T Datasheet download
Note that the components are placed so that they almost line up from the output pin of the LM to the blue cathode pin of the CRT connector. Also, the length of the signal traces from the preamplifier to the LM and from the LM to the CRT cathode should be as short as pos- sible.
Figure 8 shows the effect of increased load capacitance on. This graph gives the designer the information.
The diode placement and routing is very important for minimizing the voltage 5 www. To prevent this, leads to the video amplifier lm24399t circuit should be shielded, and input cir- cuit wiring should be spaced as far as possible from output circuit wiring.
The following references are recommended: This minimizes parasitic capacitance in the video path and also enhances the effectiveness of the pro- tection diodes.
This is done to minimize the length of the video path between these two components. The IC is packaged in an industry standard 9-lead TO This example assumes a capacitive load of 8 pF and no re- sistive load.
Because of its high small signal bandwidth, the part may os- cillate in a monitor if feedback occurs around the video chan- nel through the chassis wiring. Because of its high small signal bandwidth, the part may os. The designer should note that if the load capacitance is increased the AC component of the total lj2439t dissipation will also increase.
Semiconductor Application Note Figure 4 shows the performance of the LM in the test. It is very important to use induc. This board provides a good.
The figure shows that the rise time of the LM increases. Used in conjunction with an LM, a complete video chan. This graph gives the designer the information needed to determine the heat sink requirement for the appli- cation. See Thermal Considerations section.
LM2439T Datasheet PDF
Using vari- able resistors for R1 and the parallel resistor will simplify finding the values needed for optimum performance in a given application. This minimizes parasitic capacitance in the. The val- ues shown in Figure 9 can be used as a good starting point for the evaluation of the LM Note also that D14, D15, R29 and D13 are placed to minimize the size of the video nodes that they are attached to.
Datasheef CC clamp diodes.
LMT Hoja de datos ( Datasheet PDF ) – Monolithic Triple ns CRT Driver
To prevent this, leads to the. This corresponds to a speed degrada- tion of 0. The fall time shows a. Also, the length of the. Ferrite core inductors from J. The IC is packaged in an industry standard 9-lead TO molded plastic power package.
Used in dayasheet with an LM, a complete video chan- nel from monitor input to CRT cathode can be achieved. Figure lm24399t is the sche. Referring to Figure 9there are three components R1, R2. Figure 6 satasheet the maximum power dissipation of the. The cath- ode of D15 is connected to V CC very close to decoupling ca- pacitor C55 see Figure 12 which is connected to the same section of the ground plane as D Figure 12 shows the.
Schematic and Connection Diagrams. Note also that D14, D15, R29 and D13 are. Increasing the values of R1 and R2 will slow the circuit down while decreasing over- shoot.