ADP1828 数据手册DataSheet 下载
... Soft start and thermal overload protection Overvoltage and undervoltage power-good indicator 15 μA shutdown supply current Available in a 20-lead QSOP ...
... Soft start and thermal overload protection Overvoltage and undervoltage power-good indicator 15 μA shutdown supply current Available in a 20-lead QSOP ...
pcm-875 plasma arc cutting package
... 6. Make sure that all parts of your body are insulated from work and from ground. 7. Do not stand directly on metal or the earth while working in tight quarters or a damp area; stand on dry boards or an insulating platform and wear rubber-soled shoes. 8. Put on dry, hole-free gloves before turning o ...
... 6. Make sure that all parts of your body are insulated from work and from ground. 7. Do not stand directly on metal or the earth while working in tight quarters or a damp area; stand on dry boards or an insulating platform and wear rubber-soled shoes. 8. Put on dry, hole-free gloves before turning o ...
Feedback (Negative and Positive) File
... If R1 and R2 are both equal and Vin is 6 volts, the op-amp will output whatever voltage is needed to drop 6 volts across R1 (to make the inverting input voltage equal to 6 volts, as well, keeping the voltage difference between the two inputs equal to zero). With the 2:1 voltage divider of R1 and R2 ...
... If R1 and R2 are both equal and Vin is 6 volts, the op-amp will output whatever voltage is needed to drop 6 volts across R1 (to make the inverting input voltage equal to 6 volts, as well, keeping the voltage difference between the two inputs equal to zero). With the 2:1 voltage divider of R1 and R2 ...
TPS62152-Q1 - Texas Instruments
... TI recommends connecting FB to AGND for improved thermal performance. ...
... TI recommends connecting FB to AGND for improved thermal performance. ...
60-W, 24-V, High-Efficiency Industrial Power
... supply needs of a reduced number of feedback loops for precision current and power limits, eliminating the need of current sensing on secondary side and multiple optocoupler feedback loops for open-loop detection and power limiting. The UCC28740 isolated-flyback power supply controller provides CV o ...
... supply needs of a reduced number of feedback loops for precision current and power limits, eliminating the need of current sensing on secondary side and multiple optocoupler feedback loops for open-loop detection and power limiting. The UCC28740 isolated-flyback power supply controller provides CV o ...
TRANSIENT VOLTAGE SUPPRESSOR COMPLIANCE TO
... When further comparing TVSs for electrical parameters compared to Zeners, similar features may be called by different names. For example, TVSs are also tested for reverse leakage current or what is called Standby Current (I D ) at the Working Peak Voltage or Standoff Voltage (V WM ) that is typicall ...
... When further comparing TVSs for electrical parameters compared to Zeners, similar features may be called by different names. For example, TVSs are also tested for reverse leakage current or what is called Standby Current (I D ) at the Working Peak Voltage or Standoff Voltage (V WM ) that is typicall ...
TPS61140 数据资料 dataSheet 下载
... off, thereby opening the current path. The boost converter operates in PFM (pulse frequency modulation) mode for high efficiency over a wide load range. Operating in PFM mode, the device turns on the power switch Q1 when the voltage drop across the LDO (i.e., V(IOUT)–VOUT) falls below the regulation ...
... off, thereby opening the current path. The boost converter operates in PFM (pulse frequency modulation) mode for high efficiency over a wide load range. Operating in PFM mode, the device turns on the power switch Q1 when the voltage drop across the LDO (i.e., V(IOUT)–VOUT) falls below the regulation ...
a Micropower, Step-Up/Step-Down SW ADP1111
... at the FB pin exceeds 1.25 V, the oscillator is shut off. While the oscillator is off, the ADP1111 quiescent current is only 300 µA. The comparator includes a small amount of hysteresis, which ensures loop stability without requiring external components for frequency compensation. ...
... at the FB pin exceeds 1.25 V, the oscillator is shut off. While the oscillator is off, the ADP1111 quiescent current is only 300 µA. The comparator includes a small amount of hysteresis, which ensures loop stability without requiring external components for frequency compensation. ...
MAX15039 6A, 2MHz Step-Down Regulator with Integrated Switches General Description
... 0.6V to 90% of VIN. The IC operates from 2.9V to 5.5V, making it ideal for on-board point-of-load and postregulation applications. Total output error is less than ±1% over load, line, and temperature ranges. The MAX15039 features fixed-frequency PWM mode operation with a switching frequency range of ...
... 0.6V to 90% of VIN. The IC operates from 2.9V to 5.5V, making it ideal for on-board point-of-load and postregulation applications. Total output error is less than ±1% over load, line, and temperature ranges. The MAX15039 features fixed-frequency PWM mode operation with a switching frequency range of ...
RFID Coil Design
... application utilizing the VLF (100 kHz – 500 kHz) band, the wavelength of the operating frequency is a few kilometers (λ = 2.4 Km for 125 kHz signal). Because of its long wavelength, a true antenna can never be formed in a limited space of the device. Alternatively, a small loop antenna coil that is ...
... application utilizing the VLF (100 kHz – 500 kHz) band, the wavelength of the operating frequency is a few kilometers (λ = 2.4 Km for 125 kHz signal). Because of its long wavelength, a true antenna can never be formed in a limited space of the device. Alternatively, a small loop antenna coil that is ...
Capacitor unbalance protection for blocks in double
... The shunt capacitor banks are usually constructed of capacitor units, and the units contain capacitor elements. There are constructions of the bank where fuses are connected inside a capacitor unit, in series with an element or a group of elements. The fuse is connected in series with the element th ...
... The shunt capacitor banks are usually constructed of capacitor units, and the units contain capacitor elements. There are constructions of the bank where fuses are connected inside a capacitor unit, in series with an element or a group of elements. The fuse is connected in series with the element th ...
LT3505 - 1.2A, Step-Down Switching Regulator in 3mm x 3mm DFN
... where fSW is the switching frequency in hertz and tON(MIN) is the worst-case minimum on-time in seconds. The minimum on-time of the LT3505 is a strong function of temperature. The typical performance characteristics section of the datasheet contains a graph of minimum on-time versus temperature to h ...
... where fSW is the switching frequency in hertz and tON(MIN) is the worst-case minimum on-time in seconds. The minimum on-time of the LT3505 is a strong function of temperature. The typical performance characteristics section of the datasheet contains a graph of minimum on-time versus temperature to h ...
MAX17024 Single Quick-PWM Step-Down Controller with Dynamic REFIN General Description
... TON to GND ...........................................................-0.3V to +28V VDD to GND ..............................................................-0.3V to +6V VCC to GND ................................................-0.3V to (VDD + 0.3V) EN, PGOOD to GND................................. ...
... TON to GND ...........................................................-0.3V to +28V VDD to GND ..............................................................-0.3V to +6V VCC to GND ................................................-0.3V to (VDD + 0.3V) EN, PGOOD to GND................................. ...
ADP3050 数据手册DataSheet 下载
... unique compensation scheme allowing the use of any type of output capacitor (tantalum, ceramic, electrolytic, OS-CON). Unlike some buck regulators, the design is not restricted to using a specific type of output capacitor or ESR value. A special boosted drive stage is used to saturate the NPN power ...
... unique compensation scheme allowing the use of any type of output capacitor (tantalum, ceramic, electrolytic, OS-CON). Unlike some buck regulators, the design is not restricted to using a specific type of output capacitor or ESR value. A special boosted drive stage is used to saturate the NPN power ...
LT3592 - 500mA Wide Input Voltage Range Step
... Be sure to choose VOUT such that it does not interfere with the operation of the current control loop; it should be set at least 10% above the maximum expected LED voltage for the selected BRIGHT output current. R2 should be 20k or less to avoid bias current errors. An optional phaselead capacitor o ...
... Be sure to choose VOUT such that it does not interfere with the operation of the current control loop; it should be set at least 10% above the maximum expected LED voltage for the selected BRIGHT output current. R2 should be 20k or less to avoid bias current errors. An optional phaselead capacitor o ...
Conductive Polymer Aluminum Solid Capacitors Application Note
... Advantages of polymer capacitors are stable characteristics independence on temperature and low ESR and high ripple current capability, so that the switching power supply can be downsized by reducing the number of capacitors. In the meantime, the downsizing can be made by reducing the size of the ou ...
... Advantages of polymer capacitors are stable characteristics independence on temperature and low ESR and high ripple current capability, so that the switching power supply can be downsized by reducing the number of capacitors. In the meantime, the downsizing can be made by reducing the size of the ou ...
Spark-gap transmitter
A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using a spark gap.Spark gap transmitters were the first devices to demonstrate practical radio transmission, and were the standard technology for the first three decades of radio (1887–1916). Later, more efficient transmitters were developed based on rotary machines like the high-speed Alexanderson alternators and the static Poulsen Arc generators.Most operators, however, still preferred spark transmitters because of their uncomplicated design and because the carrier stopped when the telegraph key was released, which let the operator ""listen through"" for a reply. With other types of transmitter, the carrier could not be controlled so easily, and they required elaborate measures to modulate the carrier and to prevent transmitter leakage from de-sensitizing the receiver. After WWI, greatly improved transmitters based on vacuum tubes became available, which overcame these problems, and by the late 1920s the only spark transmitters still in regular operation were ""legacy"" installations on naval vessels. Even when vacuum tube based transmitters had been installed, many vessels retained their crude but reliable spark transmitters as an emergency backup. However, by 1940, the technology was no longer used for communication. Use of the spark-gap transmitter led to many radio operators being nicknamed ""Sparks"" long after they ceased using spark transmitters. Even today, the German verb funken, literally, ""to spark,"" also means ""to send a radio message or signal.""