SN74LVC2G17DCKR DataSheet
DATASHEET
SN74LVC2G17DCKR 描述
A power ready/undervoltage lockout function outputs the status of the VCC-pin voltage and driver regulator output on the open-drain PWRRDY pin. This feature can be used to enable a controllers output once the VCC voltage reaches the threshold and the regulator output is stable. This function ensures both FET drivers are off when the VCC voltage is below the voltage threshold.
SN74LVC2G17DCKR 特点
Since current flow in a Schottky rectifier is the result of majority carrier conduction, it is not subject to junction diode forward and reverse recovery transients due to minority carrier injection and stored charge. Satisfactory circuit analysis work may be performed by using a model consisting of an ideal diode in parallel with a variable capacitance. (See Figure 5) Rectification efficiency measurements show that operation will be satisfactory up to several megahertz. For example, relative waveform rectification efficiency is approximately 70 percent at 2 MHz, e.g., the ratio of dc power to RMS power in the load is 0.28 at this frequency, whereas perfect rectification would yield 0.406 for sine wave inputs. However, in contrast to ordinary junction diodes, the loss in waveform efficiency is not indicative of power loss: it is simply a result of reverse current flow through the diode capacitance, which lowers the dc output voltage.
SN74LVC2G17DCKR 应用
Technical/Catalog InformationSN74LVC2G17DCKRVendorTexas Instruments (VA)CategoryIntegrated Circuits (ICs) Logic Type