MAX8500–MAX8504 PWM Buck Converters with Bypass FET for N-CDMA/W-CDMA Handsets General Description
... The MAX8500–MAX8504 PWM DC-to-DC buck converters are optimized with integrated bypass FET (0.25Ω typ) to provide power to the PA in N-CDMA and W-CDMA cell phones. The devices have a low on-resistance FET to bypass the external inductor for low dropout of only 150mV at 600mA load, regardless of induc ...
... The MAX8500–MAX8504 PWM DC-to-DC buck converters are optimized with integrated bypass FET (0.25Ω typ) to provide power to the PA in N-CDMA and W-CDMA cell phones. The devices have a low on-resistance FET to bypass the external inductor for low dropout of only 150mV at 600mA load, regardless of induc ...
Users and designers are faced with challenges when
... large and discontinuous switching currents produced by POLs. A side effect of this large capacitance is a large inrush current upon application of power. This current, sometimes reaching values up to 100A, not only poses a risk to the input capacitor but also to upstream components. Inrush current l ...
... large and discontinuous switching currents produced by POLs. A side effect of this large capacitance is a large inrush current upon application of power. This current, sometimes reaching values up to 100A, not only poses a risk to the input capacitor but also to upstream components. Inrush current l ...
UM1016
... measuring signals by means of shielded wires, running from the sensing device to the microcontroller board, where they are then conditioned and properly filtered to be acquired through the ADCs. In particular, on the microcontroller board, J14 is used to connect the wire carrying the signal proporti ...
... measuring signals by means of shielded wires, running from the sensing device to the microcontroller board, where they are then conditioned and properly filtered to be acquired through the ADCs. In particular, on the microcontroller board, J14 is used to connect the wire carrying the signal proporti ...
ZXLD381 Summary A Product Line of
... voltage is required. These applications mainly operate from 1.5V or 1.2V cells. The IC generates constant current pulses that are ideal for driving single or multiple LEDs over a wide range of operating voltages. The ZXLD381 uses a PFM control technique to drive an internal switching transistor whic ...
... voltage is required. These applications mainly operate from 1.5V or 1.2V cells. The IC generates constant current pulses that are ideal for driving single or multiple LEDs over a wide range of operating voltages. The ZXLD381 uses a PFM control technique to drive an internal switching transistor whic ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
... region (fully off). When the power MOSFET is in the on-state, however, it is not an ideal switch; it acts as if there is a resistor, Rds (on) (drain to source on-state resistance), between its drain and source terminals. Compared to other power semiconductor devices such as the IGBT, the MOSFET’s ma ...
... region (fully off). When the power MOSFET is in the on-state, however, it is not an ideal switch; it acts as if there is a resistor, Rds (on) (drain to source on-state resistance), between its drain and source terminals. Compared to other power semiconductor devices such as the IGBT, the MOSFET’s ma ...
RF5612 3.0V TO 4.0V, 2.5GHz TO 2.7GHz LINEAR POWER AMPLIFIER Features
... This pin is connected internally to the collector of the 3rd stage RF device. To achieve specified performance, the layout of these pins should match the Recommended Land Pattern. This pin is connected internally to the collector of the 2nd stage RF device. To achieve specified performance, the layo ...
... This pin is connected internally to the collector of the 3rd stage RF device. To achieve specified performance, the layout of these pins should match the Recommended Land Pattern. This pin is connected internally to the collector of the 2nd stage RF device. To achieve specified performance, the layo ...
Milagro Front−end Electronics Manual
... temperature can be increased slightly, but it should not be increased by more than 5 degrees without first consulting with someone familiar with the front−end electronics. Keep in mind that these temperature sensor switches require that the measured temperature drop at least 5 degrees below the limi ...
... temperature can be increased slightly, but it should not be increased by more than 5 degrees without first consulting with someone familiar with the front−end electronics. Keep in mind that these temperature sensor switches require that the measured temperature drop at least 5 degrees below the limi ...
iinstallation, operation, maintenance, and service for quiet
... check for voltage between relay terminals 7 and 8. If voltage is present, one of the optional controls is not opening and is defective. If the blower operates only on high speed (when the optional controls are activated) and is off the rest of the time, check that the segments on the 7-day timer are ...
... check for voltage between relay terminals 7 and 8. If voltage is present, one of the optional controls is not opening and is defective. If the blower operates only on high speed (when the optional controls are activated) and is off the rest of the time, check that the segments on the 7-day timer are ...
MULTIPLE RS-232 DRIVERS AND RECEIVERS
... See Figure 4 † All typical values are at TA = 25°C, VCC = 5 V, VDD = 9 V, and VSS = – 9 V. ...
... See Figure 4 † All typical values are at TA = 25°C, VCC = 5 V, VDD = 9 V, and VSS = – 9 V. ...
Fast topology detection based on open line detection relays, a
... • Base voltage (Vbase): the rated line to line voltage • Base power (Pbase): the surge impedance loading (SIL) The impact of applying this per-unit system to transmission lines of various rated voltage (110kV to 1100kV) and physical characteristics obtained from [10] has been investigated. The resul ...
... • Base voltage (Vbase): the rated line to line voltage • Base power (Pbase): the surge impedance loading (SIL) The impact of applying this per-unit system to transmission lines of various rated voltage (110kV to 1100kV) and physical characteristics obtained from [10] has been investigated. The resul ...
XAPP459 - Eliminating I/O Coupling Effects when Interfacing Large-Swing Single-Ended Signals to User I/O Pins on Spartan-3 Families
... requirements of most applications can easily be met. It is possible to program User I/O pins of these families to handle many different single-ended signal standards. The standard singleended signaling voltage levels are 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. There are a number of applications for which ...
... requirements of most applications can easily be met. It is possible to program User I/O pins of these families to handle many different single-ended signal standards. The standard singleended signaling voltage levels are 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. There are a number of applications for which ...
Power MOSFET
A power MOSFET is a specific type of metal oxide semiconductor field-effect transistor (MOSFET) designed to handle significant power levels.Compared to the other power semiconductor devices, for example an insulated-gate bipolar transistor (IGBT) or a thyristor, its main advantages are high commutation speed and good efficiency at low voltages. It shares with the IGBT an isolated gate that makes it easy to drive. They can be subject to low gain, sometimes to degree that the gate voltage needs to be higher than the voltage under control.The design of power MOSFETs was made possible by the evolution of CMOS technology, developed for manufacturing integrated circuits in the late 1970s. The power MOSFET shares its operating principle with its low-power counterpart, the lateral MOSFET.The power MOSFET is the most widely used low-voltage (that is, less than 200 V) switch. It can be found in most power supplies, DC to DC converters, and low voltage motor controllers.