LDO Current Foldback/Current Limiter Circuits Tips
... For example, ultra small-size LDO’s such as the XC6224 and XC6504 are of type A. However, using current foldback can sometimes prevent the LDO from starting up when the initial output voltage on customers' applications is slightly negative (down to -0.2V). Using an LDO whose first limiting circuit ( ...
... For example, ultra small-size LDO’s such as the XC6224 and XC6504 are of type A. However, using current foldback can sometimes prevent the LDO from starting up when the initial output voltage on customers' applications is slightly negative (down to -0.2V). Using an LDO whose first limiting circuit ( ...
Document
... consisting of carbon, soot, sand, oxides, and salts, e.g. chloride and sulphate. Many of these substances attract moisture from the air; some of them also attract polluting and corrosive gases. The salts cause high conductivity, and carbon particles can lead to a large number of small galvanic eleme ...
... consisting of carbon, soot, sand, oxides, and salts, e.g. chloride and sulphate. Many of these substances attract moisture from the air; some of them also attract polluting and corrosive gases. The salts cause high conductivity, and carbon particles can lead to a large number of small galvanic eleme ...
61/1804-1/2 SANS 1804-1 2007/04/24 2007/06/27
... NOTE 1 When a motor is to be installed and used under abnormal conditions (for example, in the presence of high humidity, corrosive atmospheres, or high or low temperatures or both), advice on its rating, installation and use should be sought from the manufacturer. NOTE 2 Induction motors for use in ...
... NOTE 1 When a motor is to be installed and used under abnormal conditions (for example, in the presence of high humidity, corrosive atmospheres, or high or low temperatures or both), advice on its rating, installation and use should be sought from the manufacturer. NOTE 2 Induction motors for use in ...
Lokal fulltext - Chalmers tekniska högskola
... high bandgap energy within another semiconductor material with lower bandgap energy. This configuration is referred to as a ”barrier”. Due to its nonlinear capacitance and anti-symmetric current-voltage, HBV generates only odd harmonics of the input signal (n=3,5,7,...). In addition, unlike SD, HBV ...
... high bandgap energy within another semiconductor material with lower bandgap energy. This configuration is referred to as a ”barrier”. Due to its nonlinear capacitance and anti-symmetric current-voltage, HBV generates only odd harmonics of the input signal (n=3,5,7,...). In addition, unlike SD, HBV ...
LukeOrsini_Project_Draft_20110810.pdf
... (Sn63Pb37) is widely used because of its good ability to wet to various metallic substrates, high shear strength, and low processing temperature. This paper will limit itself to Sn63Pb37 eutectic solder. Eutectic tin- lead solder (Sn63Pb37) has a melting temperature (Tm) of 183OC (361.4OF). The envi ...
... (Sn63Pb37) is widely used because of its good ability to wet to various metallic substrates, high shear strength, and low processing temperature. This paper will limit itself to Sn63Pb37 eutectic solder. Eutectic tin- lead solder (Sn63Pb37) has a melting temperature (Tm) of 183OC (361.4OF). The envi ...
LT3091 - –36V, 1.5A Negative Linear Regulator with Programmable
... Note 3. Parasitic diodes exist internally between the OUT, SET, ILIM, SHDN, IMONP, IMONN, and GND pins and the IN pin. Do not drive OUT, SET, ILIM, SHDN, IMONP, IMONN, and GND pins more than 0.3V below the IN pin during fault conditions. These pins must remain at a voltage more positive than IN duri ...
... Note 3. Parasitic diodes exist internally between the OUT, SET, ILIM, SHDN, IMONP, IMONN, and GND pins and the IN pin. Do not drive OUT, SET, ILIM, SHDN, IMONP, IMONN, and GND pins more than 0.3V below the IN pin during fault conditions. These pins must remain at a voltage more positive than IN duri ...
PDF: 312KB
... A new IGBT module package called “U-Series” was developed by Mitsubishi Electric in 1996. The new package technology achieves a significant reduction in internal inductance and improved reliability over older designs. The time required to assemble the new module was substantially reduced by using a ...
... A new IGBT module package called “U-Series” was developed by Mitsubishi Electric in 1996. The new package technology achieves a significant reduction in internal inductance and improved reliability over older designs. The time required to assemble the new module was substantially reduced by using a ...
monitoring of leakage current for composite insulators and electrical
... achieved in modern insulator designs. Before invention of polymeric insulators, the ceramic insulators with reasonably low leakage current were common. Such insulators are still available in form of discs of different sizes and diameters as shown in Fig. 2; these insulators can be attached together ...
... achieved in modern insulator designs. Before invention of polymeric insulators, the ceramic insulators with reasonably low leakage current were common. Such insulators are still available in form of discs of different sizes and diameters as shown in Fig. 2; these insulators can be attached together ...
using igbt modules
... A new IGBT module package called “U-Series” was developed by Mitsubishi Electric in 1996. The new package technology achieves a significant reduction in internal inductance and improved reliability over older designs. The time required to assemble the new module was substantially reduced by using a ...
... A new IGBT module package called “U-Series” was developed by Mitsubishi Electric in 1996. The new package technology achieves a significant reduction in internal inductance and improved reliability over older designs. The time required to assemble the new module was substantially reduced by using a ...
Kilometer-Long Ordered Nanophotonic Devices by Preform-to
... low-cost functional fibers may pave the way for new types of fiber sensors, such as thermal sensing fabrics, artificial skin, and largearea optoelectronic screens. Next, the preform-to-fiber approach is used to fabricate spectrally tunable photodetectors that integrate a photosensitive core and a na ...
... low-cost functional fibers may pave the way for new types of fiber sensors, such as thermal sensing fabrics, artificial skin, and largearea optoelectronic screens. Next, the preform-to-fiber approach is used to fabricate spectrally tunable photodetectors that integrate a photosensitive core and a na ...
ZTX751 Features Mechanical Data
... written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instruct ...
... written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instruct ...
MAX9370/MAX9371/MAX9372 LVTTL/TTL-to-Differential LVPECL/PECL Translators General Description
... each output for the lowest output-to-output skew. When a single-ended signal is taken from a differential output, terminate both outputs. For example, if Q is used as a single-ended output, terminate both Q and Q. ...
... each output for the lowest output-to-output skew. When a single-ended signal is taken from a differential output, terminate both outputs. For example, if Q is used as a single-ended output, terminate both Q and Q. ...
TLV431x Low-Voltage Adjustable Precision
... stability over applicable industrial and commercial temperature ranges. Output voltage can be set to any value between VREF (1.24 V) and 6 V with two external resistors (see Figure 20). These devices operate from a lower voltage (1.24 V) than the widely used TL431 and TL1431 shunt-regulator referenc ...
... stability over applicable industrial and commercial temperature ranges. Output voltage can be set to any value between VREF (1.24 V) and 6 V with two external resistors (see Figure 20). These devices operate from a lower voltage (1.24 V) than the widely used TL431 and TL1431 shunt-regulator referenc ...
AAT4280A 数据资料DataSheet下载
... exceed 2.3A or if the ambient temperature were to increase, the internal die temperature would increase and the device would be damaged. Higher peak currents can be obtained with the AAT4280A. To accomplish this, the device thermal resistance must be reduced by increasing the heat sink area or by op ...
... exceed 2.3A or if the ambient temperature were to increase, the internal die temperature would increase and the device would be damaged. Higher peak currents can be obtained with the AAT4280A. To accomplish this, the device thermal resistance must be reduced by increasing the heat sink area or by op ...
Thermal runaway
Thermal runaway refers to a situation where an increase in temperature changes the conditions in a way that causes a further increase in temperature, often leading to a destructive result. It is a kind of uncontrolled positive feedback.In other words, ""thermal runaway"" describes a process which is accelerated by increased temperature, in turn releasing energy that further increases temperature. In chemistry (and chemical engineering), this risk is associated with strongly exothermic reactions that are accelerated by temperature rise. In electrical engineering, thermal runaway is typically associated with increased current flow and power dissipation, although exothermic chemical reactions can be of concern here too. Thermal runaway can occur in civil engineering, notably when the heat released by large amounts of curing concrete is not controlled. In astrophysics, runaway nuclear fusion reactions in stars can lead to nova and several types of supernova explosions, and also occur as a less dramatic event in the normal evolution of solar mass stars, the ""helium flash"".There are also concerns regarding global warming that a global average increase of 3-4 degrees Celsius above the preindustrial baseline could lead to a further unchecked increase in surface temperatures. For example, releases of methane, a greenhouse gas more potent than CO2, from wetlands, melting permafrost and continental margin seabed clathrate deposits could be subject to positive feedback.