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and integrated circuits are precision parallel regulator diodes. These monolithic references operate like Zener diodes with low temperature coefficients and have a dynamic impedance. A third terminal is provided on the circuit for easy fine-tuning of the reference voltage and temperature coefficient.
These devices are suitable for use as precision voltage references (VZ) for digital voltmeters, power supplies, or op amp circuits. The voltage reference makes it easy to get a stable reference from a 5V logic supply. Because these series are shunt regulators, they can be used as positive or negative voltage references.
Peculiarity. Low temperature coefficient.
Wide operating current: 400 A to 10 mA, dynamic impedance, 1% tolerance Specified temperature stability.
It can be easily fine-tuned for minimal temperature drift.
Quick turn-on Three-pin transistor package.
Package: TA is a packaged device.
Die form (y).
Small (D) Plastics (LP).
0 to 70
25 to 85
d packages are available in strip and tray packs, with the suffix r on the part number (e.g., deal with the ones found on the Internet.
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The LM336 is a reference diode. Connect a resistor at the + end of the diode, connect 5V at the other end of the resistor, the - terminal of LM336 is grounded, turn on 5V voltage, and the voltage regulation value at the + end is good.
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The transistor LM317 has three pins, the first pin is the voltage regulation pin; The second pin is the voltage output pin; The third pin is the voltage input pin. Place the pin of the transistor facing left, from top to bottom, pin 1 is the adjustment end, 2 pin is the output end, and 3 pin is the input end.
Each of the three pins of the LM317 performs its own duties: one input, one grinding, one output, and one voltage regulation. The input pin is connected to the positive voltage, the output pin is connected to the load, one pin of the voltage regulation pin is connected to the resistor (about 200) at the output pin, and the other is connected to the adjustable resistor (a few k) to the ground. The input and output pins are connected to ground with filter capacitors.
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Knock it open with a hammer to see if it's the most reliable.
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The LM317 is an adjustable three-terminal regulator that can be used to design and deliver more than current and output in an adjustable power supply. It has internal current limiting, overtemperature protection, and safe current compensation, and the output current is up to; The output voltage can be adjusted, and its pin function and measured data are shown in the table.
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From the front, pin 1 is the adjustment end, 2 pin is the output end, and 3 pin is the input end.
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Hello dear, I am glad to serve you: LN54733A is a voltage regulator diode, function: using the PN junction reverse breakdown state, its current can change in a wide range and the voltage is basically unchanged phenomenon, made of a voltage stabilizing diode.
This diode is a semiconductor device that has a very high resistance until the critical reverse breakdown voltage. A diode is an electronic device made of semiconductor materials (silicon, selenium, germanium, etc.). It has unidirectional conductivity, i.e., the diode is turned on when a forward voltage is applied to the diode anode and cathode.
When a reverse voltage is applied to the anode and cathode, the diode is cut off. Therefore, the conduction and cut-off of the diode are equivalent to the switching on and off. Diodes are one of the earliest semiconductor devices and are used in a wide range of applications.
Especially in various electronic circuits, the use of diodes and resistors, capacitors, inductors and other components for reasonable connection to form circuits with different functions, can realize the AC rectification, modulation signal detection, limiting and clamping, power supply voltage stabilization and loss wheel and other functions can be buried. Diodes can be found in common radio circuits or in other household appliances or industrial control circuits.
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This is a pdf document, right?,But it's hard to distinguish between left and right.,I don't understand that.。
Learn the basics in electronic devices to know.
The tube voltage drop UCE means that the voltage between the collector and the emitter is normal.
It can be replaced with .
For the two magnifications that describe the relationship between currents, there is the following relationship. >>>More
Function: Amplification of electric current.
Characteristics: A small change in the base emitter current can cause a large change in the pole emitter current. >>>More
The working principle of the transistor is actually similar to that of the faucet, so it is easy to understand!