TL4242 数据资料 dataSheet 下载
... The TL4242 is an integrated adjustable constant-current source, driving loads up to 500 mA. The output current level can be adjusted via an external resistor. The device is designed to supply high-power LEDs (for example, OSRAM Dragon LA W57B) under the severe conditions of automotive applications, ...
... The TL4242 is an integrated adjustable constant-current source, driving loads up to 500 mA. The output current level can be adjusted via an external resistor. The device is designed to supply high-power LEDs (for example, OSRAM Dragon LA W57B) under the severe conditions of automotive applications, ...
LTC4415 - Dual 4A Ideal Diodes with Adjustable Current Limit
... (VFR = 15mV typical) is maintained by modulating the series resistance offered by the PFETs (P1/P2) in the current paths as shown in the Block Diagram. This operating mode is referred to as constant VFR regulation. In battery-powered and low headroom applications, the low forward drop of the ideal d ...
... (VFR = 15mV typical) is maintained by modulating the series resistance offered by the PFETs (P1/P2) in the current paths as shown in the Block Diagram. This operating mode is referred to as constant VFR regulation. In battery-powered and low headroom applications, the low forward drop of the ideal d ...
Directcurrent Circuits
... 6) A hot lightbulb has a much higher resistance 7) A light bulb usually fails just when switched on because the resistance is small and the current high, and thus the power delivered high (P=I2R) In the demos shown in this lecture, all lightbulbs have the same resistance if at the same temperatur ...
... 6) A hot lightbulb has a much higher resistance 7) A light bulb usually fails just when switched on because the resistance is small and the current high, and thus the power delivered high (P=I2R) In the demos shown in this lecture, all lightbulbs have the same resistance if at the same temperatur ...
LM5104 High Voltage Half-Bridge Gate Driver with Adaptive Delay
... MOSFETs in a synchronous buck configuration. The floating high-side driver is capable of working with supply voltages up to 100 V. The high side and low side gate drivers are controlled from a single input. Each change in state is controlled in an adaptive manner to prevent shoot-through issues. In ...
... MOSFETs in a synchronous buck configuration. The floating high-side driver is capable of working with supply voltages up to 100 V. The high side and low side gate drivers are controlled from a single input. Each change in state is controlled in an adaptive manner to prevent shoot-through issues. In ...
2C YWX - Diodes Incorporated
... express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. ...
... express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. ...
Large Scale Superconducting Magnets for Physics Research
... Quench protection requirements of magnets must be respected from the beginning, otherwise magnets will degrade or die……. For low voltage, diode-shorted magnets the protection is based on normal zone propagation velocity. In compact high-field accelerator magnets we find 10-30 m/s, by far not eno ...
... Quench protection requirements of magnets must be respected from the beginning, otherwise magnets will degrade or die……. For low voltage, diode-shorted magnets the protection is based on normal zone propagation velocity. In compact high-field accelerator magnets we find 10-30 m/s, by far not eno ...
Table I: Pulse Magnet Systems for E951 Targetry Experiment
... 150 volts (540 kVA). At this voltage, the magnet takes about seven seconds to reach its full field of 5 T, which one holds for up to a second. Discharge at full negative voltage, –150 V, takes an additional three seconds. Stage 2 employs the same 1,200-turn magnet, but energized by four BNL power su ...
... 150 volts (540 kVA). At this voltage, the magnet takes about seven seconds to reach its full field of 5 T, which one holds for up to a second. Discharge at full negative voltage, –150 V, takes an additional three seconds. Stage 2 employs the same 1,200-turn magnet, but energized by four BNL power su ...
IGC89T170S8RM
... Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. The Infineon Technologies component described in this Data Sheet may be used in life-support devices or systems and/or automo ...
... Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. The Infineon Technologies component described in this Data Sheet may be used in life-support devices or systems and/or automo ...
AL8807BQ Description Pin Assignments
... LEDs with a constant current. The device can drive up to 9 LEDs, depending on the forward voltage of the LEDs, in series from a voltage source of 6V to 30V. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. T ...
... LEDs with a constant current. The device can drive up to 9 LEDs, depending on the forward voltage of the LEDs, in series from a voltage source of 6V to 30V. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. T ...
LM317 - Electronics
... absence of input bypassing when adjustment or output capacitors are used but the above values will eliminate the possibility of problems. The adjustment terminal can be bypassed to ground on the LM117 to improve ripple rejection. This bypass capacitor prevents ripple from being amplified as the outp ...
... absence of input bypassing when adjustment or output capacitors are used but the above values will eliminate the possibility of problems. The adjustment terminal can be bypassed to ground on the LM117 to improve ripple rejection. This bypass capacitor prevents ripple from being amplified as the outp ...
N5 Energy and Electricity
... As the bob swings upwards it slows down. Its kinetic energy decreases as work is done against its weight. As it gains height, the gravitational potential energy increases again. At the very top of its swing it stops for a moment. It once again has no kinetic energy, but its gravitational potential e ...
... As the bob swings upwards it slows down. Its kinetic energy decreases as work is done against its weight. As it gains height, the gravitational potential energy increases again. At the very top of its swing it stops for a moment. It once again has no kinetic energy, but its gravitational potential e ...
THERMODYNAMICS LAB 4 – Thermal Conductivity
... RTD is nearly linear over a wide range of temperatures and can be made small enough to have response times of a fraction of a second. The classical resistance temperature detector (RTD) construction using platinum was proposed by C.H.Meyers in 1932. This requires an electrical current to produce a v ...
... RTD is nearly linear over a wide range of temperatures and can be made small enough to have response times of a fraction of a second. The classical resistance temperature detector (RTD) construction using platinum was proposed by C.H.Meyers in 1932. This requires an electrical current to produce a v ...
AP7217A
... The AP7217A is turned on by setting the EN pin high, and is turned off by pulling it low. If this feature is not used, the EN pin should be tied to IN pin to keep the regulator output on at all time. To ensure proper operation, the signal source used to drive the EN pin must be able to swing above a ...
... The AP7217A is turned on by setting the EN pin high, and is turned off by pulling it low. If this feature is not used, the EN pin should be tied to IN pin to keep the regulator output on at all time. To ensure proper operation, the signal source used to drive the EN pin must be able to swing above a ...
NBB-400 CASCADABLE BROADBAND GaAs MMIC AMPLIFIER DC TO 8GHz Features
... Carrier tape basic dimensions are based on EIA 481. The pocket is designed to hold the part for shipping and loading onto SMT manufacturing equipment, while protecting the body and the solder terminals from damaging stresses. The individual pocket design can vary from vendor to vendor, but width and ...
... Carrier tape basic dimensions are based on EIA 481. The pocket is designed to hold the part for shipping and loading onto SMT manufacturing equipment, while protecting the body and the solder terminals from damaging stresses. The individual pocket design can vary from vendor to vendor, but width and ...
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.