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Les Répertoires d'emploi de L' O D E S S E
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Les Répertoires d'emploi de L' O D E S S E
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Actions directes - mode d'emploi
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MEMO GUPPY Se référer la page du mode d'emploi complet pour plus de détails Configuration skin
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Centre national de la recherche scientifique Direction aux systèmes d'information
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Centre national de la recherche scientifique Direction aux systèmes d'information
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Convention ici mode academie aix marseille
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N Up to 220mA Output Current at 5V from 2V Supply n Supply Voltage as Low as 8V n Up to Efficiency n Small Inductor H n A Quiescent Current n Shutdown to A n Programmable 3V or 5V Output n ILIM Pin Programs Peak Switch Current n Low VCESAT Switch: 170mV at 1A Typical n Uses Inexpensive Surface Mount Inductors n Lead DIP or SOIC Package
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N Up to 220mA Output Current at 5V from 2V Supply n Supply Voltage as Low as 8V n Up to Efficiency n Small Inductor H n A Quiescent Current n Shutdown to A n Programmable 3V or 5V Output n ILIM Pin Programs Peak Switch Current n Low VCESAT Switch: 170mV at 1A Typical n Uses Inexpensive Surface Mount Inductors n Lead DIP or SOIC Package
8 pages
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VERY PRECISE ADJUSTABLE INTERNAL OUTPUT OVERVOLTAGE PROTECTION HYSTERETIC START UP ISTART UP 5mA VERY LOW QUIESCENT CURRENT 5mA INTERNAL START UP TIMER TRANSITION MODE OPERATING TOTEM POLE OUTPUT CURRENT: ±400mA DIP8 SO8 PACKAGES
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VERY PRECISE ADJUSTABLE INTERNAL OUTPUT OVERVOLTAGE PROTECTION HYSTERETIC START UP ISTART UP 5mA VERY LOW QUIESCENT CURRENT 5mA INTERNAL START UP TIMER TRANSITION MODE OPERATING TOTEM POLE OUTPUT CURRENT: ±400mA DIP8 SO8 PACKAGES
11 pages
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General Description The MAX712 MAX713 fast charge Nickel Metal Hydride NiMH and Nickel Cadmium NiCd batteries from a DC source at least 5V higher than the maximum battery voltage to series cells can be charged at rates up to 4C A voltage slope detecting analog to digital convert er timer and temperature window comparator determine charge completion The MAX712 MAX713 are powered by the DC source via an on board +5V shunt regulator They draw a maximum of 5m A from the battery when not charging A low side current sense resistor allows the battery charge current to be regulated while still supplying power to the battery's load The MAX712 terminates fast charge by detecting zero voltage slope while the MAX713 uses a negative voltage slope detection scheme Both parts come in pin DIP and SO packages An external power PNP tran sistor blocking diode three resistors and three capacitors are the only required external components For high power charging requirements the MAX712 MAX713 can be configured as a switch mode battery charger that minimizes power dissipation Two evaluation kits are available: Order the MAX712EVKIT DIP for quick evaluation of the linear charger and the MAX713EVKIT SO to evaluate the switch mode charger
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Annales d’examens et concours
General Description The MAX712 MAX713 fast charge Nickel Metal Hydride NiMH and Nickel Cadmium NiCd batteries from a DC source at least 5V higher than the maximum battery voltage to series cells can be charged at rates up to 4C A voltage slope detecting analog to digital convert er timer and temperature window comparator determine charge completion The MAX712 MAX713 are powered by the DC source via an on board +5V shunt regulator They draw a maximum of 5m A from the battery when not charging A low side current sense resistor allows the battery charge current to be regulated while still supplying power to the battery's load The MAX712 terminates fast charge by detecting zero voltage slope while the MAX713 uses a negative voltage slope detection scheme Both parts come in pin DIP and SO packages An external power PNP tran sistor blocking diode three resistors and three capacitors are the only required external components For high power charging requirements the MAX712 MAX713 can be configured as a switch mode battery charger that minimizes power dissipation Two evaluation kits are available: Order the MAX712EVKIT DIP for quick evaluation of the linear charger and the MAX713EVKIT SO to evaluate the switch mode charger
18 pages
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General Description The MAX3222E MAX3232E MAX3237E MAX3241E are 3V powered EIA TIA and V V communications interfaces with low power requirements high data rate capabilities and enhanced electrostatic discharge ESD protection All transmitter outputs and receiver inputs are protected to ±15kV using IEC Air Gap Discharge ±8kV using IEC Contact Dis charge and ±15kV using the Human Body Model The MAX3237E's logic and receiver I O pins are protected to the above standards while the transmitter output pins are protected to ±15kV using the Human Body Model The transceivers have a proprietary low dropout transmit ter output stage delivering true RS performance from a 0V to 5V supply with a dual charge pump The charge pump requires only four small F capacitors for operation from a 3V supply Each device is guaran teed to run at data rates of 250kbps while maintaining RS output levels The MAX3237E is guaranteed to run at data rates of 250kbps in the normal operating mode and 1Mbps in the MegaBaud™ operating mode while main taining RS compliant output levels The MAX3222E MAX3232E have two receivers and two drivers The MAX3222E features a A shutdown mode that reduces power consumption and extends battery life in portable systems Its receivers can remain active in shutdown mode allowing external devices such as modems to be monitored using only A supply current Both the MAX3222E and MAX3232E are pin package and functionally compatible with the industry standard MAX242 and MAX232 respectively The MAX3241E is a complete serial port three drivers five receivers designed for notebook and subnotebook com puters The MAX3237E five drivers three receivers is ideal for peripheral applications that require fast data transfer Both devices feature a shutdown mode in which all receivers can remain active while using a supply cur rent of only A MAX3241E or 10nA MAX3237E The MAX3237E MAX3241E have additional receiver outputs that always remain active The MAX3222E and MAX3232E are available in space saving SO SSOP and TSSOP packages The ...
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General Description The MAX3222E MAX3232E MAX3237E MAX3241E are 3V powered EIA TIA and V V communications interfaces with low power requirements high data rate capabilities and enhanced electrostatic discharge ESD protection All transmitter outputs and receiver inputs are protected to ±15kV using IEC Air Gap Discharge ±8kV using IEC Contact Dis charge and ±15kV using the Human Body Model The MAX3237E's logic and receiver I O pins are protected to the above standards while the transmitter output pins are protected to ±15kV using the Human Body Model The transceivers have a proprietary low dropout transmit ter output stage delivering true RS performance from a 0V to 5V supply with a dual charge pump The charge pump requires only four small F capacitors for operation from a 3V supply Each device is guaran teed to run at data rates of 250kbps while maintaining RS output levels The MAX3237E is guaranteed to run at data rates of 250kbps in the normal operating mode and 1Mbps in the MegaBaud™ operating mode while main taining RS compliant output levels The MAX3222E MAX3232E have two receivers and two drivers The MAX3222E features a A shutdown mode that reduces power consumption and extends battery life in portable systems Its receivers can remain active in shutdown mode allowing external devices such as modems to be monitored using only A supply current Both the MAX3222E and MAX3232E are pin package and functionally compatible with the industry standard MAX242 and MAX232 respectively The MAX3241E is a complete serial port three drivers five receivers designed for notebook and subnotebook com puters The MAX3237E five drivers three receivers is ideal for peripheral applications that require fast data transfer Both devices feature a shutdown mode in which all receivers can remain active while using a supply cur rent of only A MAX3241E or 10nA MAX3237E The MAX3237E MAX3241E have additional receiver outputs that always remain active The MAX3222E and MAX3232E are available in space saving SO SSOP and TSSOP packages The ...
20 pages
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Mai Équipe Académique Mathématiques Académie de Bordeaux
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Mai Équipe Académique Mathématiques Académie de Bordeaux
3 pages
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Gestion d'emploi du temps
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L'insertion professionnelle des jeunes apprentis
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7 pages
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CHAPITRE II CRISTALLOGRAPHIE TD
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CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
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