2N 2N 2N Units. Collector – Emitter Voltage. VCEO. . verify that the information in this data sheet is current before using this product. Visit for additional data sheets and product information. Forward Current Transfer Ratio. IC = 10 Adc, VCE = 3 Vdc. 2N 2N NPN POWER SILICON TRANSISTOR. Qualified per MIL-PRF/ T4- LDS Rev. 1 (). Page 1 of 5. DEVICES. LEVELS. 2N 2N
|Published (Last):||1 February 2005|
|PDF File Size:||11.22 Mb|
|ePub File Size:||18.92 Mb|
|Price:||Free* [*Free Regsitration Required]|
Appliance socket Buccaneer7-pole Temperature datashest Operation of the boost circuit Figure B is more subtle in that it first stores energy in a choke and then delivers this plus energy from the input line to the load. This assures that the input voltage is always above the required minimum value of Pulse width is increased until the start of saturation is observed Isat – Inductance is found using. Remote output voltage sensing capability is pro- vided, and the supply will compensate for a combined total of 0.
The basic circuit configuration for this method is shown in Figure A.
The MC, Ul, is used to sense an overvoltage condition at the output, and will trigger the crowbar S. When connected for Vac operation, the input circuit forms a standard full wave bridge. The power supply is also very efficient. For a nominal input of Vac, it maintains regulation over an input range of 90 to Vac and load range of 2: The output voltage of this configuration is given by: Ripple test dztasheet for various types dataaheet capacitors is shown in 26249 In the case of a single transistor con- verter, however, it is usually more cost effective to directly drive the transistor from the IC Figure B.
The specifications for the choke input filter will not be considered since the simpler capacitor input type is more commonly used in series regulated circuits. Particular attention should be paid to locating the compensation and bypass capacitors as close to the IC as possible.
If the lead length from the datsaheet supply filter capacitor to the regulator input is more than a couple of inches, a 0. Control Circuit Topologies When it is necessary to drive two or more power transistors, drive trans- formers are a practical interface element and are driven by the conventional dual channel IC just discussed Figure 1 A.
For example, a 0. Newer designs in the dataxheet kHz region end up at about 6: The type of rectifier circuit used can be either a half-wave, full-wave, or full-wave bridge type, as shown in Figure Unfortunately, this technique is not noise immune, and suffers an additional disadvantage in that it must be operated at voltages above 9.
For example, 22 pF, 2. However, this method results in the use qf two IC packages and a multitude of external components. Captivated contact Berylium outer contact Family Characteristics: Methods for obtaining adjustable output voltages are shown in Section 3. VcEo — since Vce Q 2 is equal to Vini max when the output is shorted or during start up: UL 94 V-0 Contact material: Such a fixture is shown in Figure where the transistor and diode are sized to handle the anticipated currents. In these cases it is necessary to parallel two or more transis- tors.
Tj where Osa Pd IlB lo solving for lo: Some circuits may not function if the 22n6249 delay varies much from the specified part. H per turns.
Control Section The TL provides the pulse-width modulation control for the power supply. More complete data on individual devices can be found in the data sheets of Section In addition, topics such as remote voltage sensing and semiconductor mounting techniques will also be considered.
International Manufacturing Services Inc. The Electronic Industries Association EIA is a US agency that sets standards for electronic components, testing procedures, performance and device markings. As illustrated by Figurethis curve shows the probability of acceptance, on the vertical axis, vs the lot quality percent rejectson the horizontal axis. More complete data on these devices can be found in the data sheets of Section It is easier to store the required energy in high voltage datashert filter capacitors V than in lower voltage V capacitors common to linear power supplies.
2N 데이터시트(PDF) – Central Semiconductor Corp
Once this limit is reached, the designer generally changes to the full bridge topology shown in Figure C. For fast switching, a Motorola type 2N transistor is used. These devices provide added flexibility with output voltage adjustable over a wide range, from 1.
Refer to the timing diagram shown in Figure Some capacitors, such as dipped silver-mica units, have a letter designating the capacitance tolerance. TNPW Series 0. The Micrometals color code is part of Table For constant current operation: For the floating regulators, the range of output voltages that can be obtained with the regulator. In many instances the designer must empirically determine the SCR and circuit elements which will result in reliable and effective OVP operation.
The value of Cp can be found from Figure An Aiternate Method of Sensing Line Fauit and Overvoitage Conditions for Linear Power Suppiies and medium sized computer systems which must store part or all of the data currently being processed before the power failure.
However, there is a considerable design challenge in this area and a great deal of satisfaction can be obtained by mastering it.