LM317BT DATASHEET PDF

LMBT datasheet, LMBT pdf, LMBT data sheet, datasheet, data sheet, pdf, Motorola, Three-terminal adjustible output positive voltage regulator. LM, LM Datasheet .. LMBT. LM, LM . The part number LM has been moved to a separate datasheet. Removed TO LMBT datasheet, LMBT circuit, LMBT data sheet: ONSEMI – A Adjustable Output, Positive Voltage Regulator,alldatasheet, datasheet, Datasheet.

Author: Tujas Vugami
Country: Poland
Language: English (Spanish)
Genre: Spiritual
Published (Last): 17 February 2010
Pages: 230
PDF File Size: 4.58 Mb
ePub File Size: 16.31 Mb
ISBN: 995-9-92698-721-6
Downloads: 97337
Price: Free* [*Free Regsitration Required]
Uploader: Kazizilkree

In packages with a heat-dissipating mounting tab, such as TOthe tab is connected internally to the output pin which may make it necessary to electrically isolate the tab or the heat sink from other parts of the application circuit.

LMBT 데이터시트(PDF) – ON Semiconductor

The LM negative complement to the LM regulates voltages below, rather than above, the reference. The LM relates in the same way to the fixed 79xx regulators. Linear integrated circuits Voltage regulation.

Floating Operation for High Voltage Applications 7.

LM317BT Datasheet

The LM has three pins: Views Read Edit View history. Because some quiescent current flows from the adjustment pin of the device, an error term is added:. In other projects Wikimedia Commons.

Wikimedia Commons has media related to LM and Voltage regulator circuits. This voltage regulator is exceptionally easy to use and requires datassheet two external resistors to set the output voltage. The mechanism used is similar enough that a voltage divider can be used in the same way as with the LM and the output follows the same formula, using the regulator’s fixed voltage for V ref e.

  INTEGRAL CALCULUS SHANTI NARAYAN PDF

Output Transistor Safe—Area Compensation 6.

Retrieved from ” https: By using this site, you agree to the Terms of Use and Privacy Policy. Retrieved 31 March Three-terminal adjustible output positive voltage regulator.

The LM serves a wide variety of applications including local, on card regulation.

LM317BT Datasheet PDF – Motorola => Freescale

Further, it employs internal current limiting, thermal shutdown and safe area compensation, making it essentially lm317ht proof. Output Current in Excess of 1. This page was last edited on 6 Julyat Because of this, the error term in the formula cannot be ignored and the value of the low-side resistor becomes more critical.

Linear regulators inherently waste power, the power dissipated is the current passed multiplied by the voltage difference between input and output. This device can also be used to make a programmable output regulator, or by connecting a fixed resistor between the adjustment and output, the LM can be used as a precision current regulator. Archived from the original PDF on 18 April Output Adjustable between 1.

This is the trade-off for using linear regulators which are a simple way to provide a stable voltage with few additional components. However, the 78xx device’s quiescent current is substantially higher and less stable. Accidenti come scotta questo transistor.

Three-terminal positive voltage regulator. The alternative is to use a switching voltage regulator which is usually more efficient but has a larger footprint and requires dtasheet larger number of associated components. Archived from the original on 17 December From Wikipedia, the free encyclopedia. The LM is a popular adjustable positive linear voltage regulator. How the adjustment pin is connected determines the output voltage as follows.

For large voltage differences, the energy lost as heat can ultimately be greater than that provided to the circuit. The LM is designed to compensate for these fluctuations internally, making such measures unnecessary. Archived from the original PDF on 31 March Dztasheet to do this may cause the circuit to short. Internal Thermal Overload Protection 4. The LM is an adjustable analogue to the popular 78xx lm317br regulators.

  COLINVAUX ECOLOGY PDF

LMBT Datasheet, LMBT PDF, Pinouts, Circuit – Motorola => Freescale

It was designed by Robert “Bob” Pease. Three Terminal Positive Voltage Regulator. In use an LM commonly requires a heat sink to prevent the operating temperature rising too high. Eliminates Stocking many Fixed Voltages.

If the adjustment pin is connected to ground the output pin delivers a regulated voltage of 1. The output current is that resulting from dropping the reference voltage across the resistor.

Three-Terminal Positive Voltage Regulator. Like the LM, each of the 78xx regulators is designed to adjust the output voltage until it is some fixed voltage above the adjustment pin which in this case is labelled ” ground “. The LM is an adjustable 3—terminal positive voltage regulator lm317bh of supplying in excess of 1. The device can be configured to regulate the current to a load, rather than the voltage, by replacing the low-side resistor of the divider with the load itself.

Higher regulated voltages are obtained by connecting the adjustment pin to a resistive voltage divider between the output and ground.

Author: admin