The PW2163 is a high efficiency 500 kHz synchronous step-down DC-DC converter capable ofdelivering 3A current. The PW2163 operates over a wide input voltage range from 4.5V to 18V andintegrates main switch and synchronous switch with very low RDS(ON) to minimize the conductionloss. Low output voltage ripple and small external inductor and capacitor sizes are achieved with 500kHz switching frequency. It adopts the instant PWM architecture to achieve fast transient responsesfor high step down applications
標簽： pw2163
上傳時間： 2022-02-11
上傳用戶：
The PW2162 is a fully integrated, high– efficiency 2A synchronous rectified step-down converter.The PW2162 operates at high efficiency over a wide output current load range. This device offerstwo operation modes, PWM control and PFM Mode switching control, which allows a high efficiencyover the wider range of the load. The PW2162 requires a minimum number of readily availablestandard external components and is available in an 6-pin SOT23 ROHS compliant package.
標簽： pw2162
上傳時間： 2022-02-11
上傳用戶：d1997wayne
InGaAs/AlGaAs semiconductor lasers come in threetypes: VCSELs and two types of EELs. The VCSEL, asits name implies, emits vertically, normal to the planeof the device, owing to cavity mirrors grown withinthe epitaxial material itself. The VCSEL’s circular beamhas a numerical aperture (NA) of roughly 0.2, or a fullangle of approximately 25 degrees.
標簽： tof
上傳時間： 2022-02-12
上傳用戶：
SH79F1622是一種高速高效率8051兼容單片機。在同樣振蕩頻率下，較之傳統的8051芯片具有運行更快速，性能更優越的特性。SH79F1622保留了標準8051芯片的大部分特性，包括內置256字節RAM和3個16位定時器/計數器。此外， SH79F1622還集成了1280字節外部擴展RAM，以及存儲程序的16K字節Flash塊。SH79F1622還集成雙路音頻發生模塊，低電壓復位， TWI通訊功能， 以及觸摸按鍵與LED共享功能來節省引腳，非常適合于觸摸按鍵應用控制。此外， SH79F1622集成了看門狗定時器， EUART等功能。
標簽： 音頻發生器
上傳時間： 2022-02-13
上傳用戶：得之我幸78
Realtek交換機設計選型參考設計交換機時候，確定了具體的芯片方案廠家以后，主要考慮以下幾個方面：1：接口的情況：是要多少網口及其它延伸接口，采用什么封裝形式；2：網口的帶寬：是千兆還是百兆，或萬兆；3：協議情況：管理型還是傻瓜式；4：POE供電：是否需要通過網口給設備供電；5：供電處理：內置電源模塊還是外接供電，供電電壓和電流要求；6：針對工業應用領域，有專門的工業級方案。設計的時候，需要根據具體的結構來實施布局走線，需要綜合考慮，確保數據傳輸效率高運行穩！結合Realtek系列方案，做一些分析推薦選型。
上傳時間： 2022-02-14
上傳用戶：ttalli
The PW2053 is a high-efficiency monolithic synchronous buck regulator using a constantfrequency, current mode architecture. The device is available in an adjustable version. Supply currentwith no load is 40uA and drops to <1uA in shutdown. The 2.5V to 5.5V input voltage range makesthe PW2053 ideally suited for single Li-Ion battery powered applications. 100% duty cycle provideslow dropout operation, extending battery life in portable systems. PWM/PFM mode operationprovides very low output ripple voltage for noise sensitive applications. Switching frequency isinternally set at 1.2MHz, allowing the use of small surface mount inductors and capacitors. Lowoutput voltages are easily supported with the 0.6V feedback reference voltage
標簽： pw2053
上傳時間： 2022-02-14
上傳用戶：jason_vip1
PW1555 is a programmable current limit switch with input voltage range selection and outputvoltage clamping. Extremely low RDS(ON) of the integrated protection N-channel FET helps toreduce power loss during the normal operation. Programmable soft-start time controls the slew rateof the output voltage during the start-up time. Independent enable control allows the complicatedsystem sequencing control. It integrates the over-temperature protection shutdown andautorecovery with hystersis
標簽： pw1555
上傳時間： 2022-02-14
上傳用戶：
The PW8205A8TS is the highest performance trench N-ch MOSFETs with extreme high cell density,which provide excellent RDSON and gate charge for most of the small power switching and loadswitch applications. The meet the RoHS and Product requirement with full function reliabilityapproved .
標簽： 8205a8
上傳時間： 2022-02-14
上傳用戶：wangshoupeng199
The PW8205A6S uses advanced trench technology to provide excellent RDS(ON), low gate chargeand operation with gate voltages as low as 2.5V. This device is suitable for use as a Battery protectionor in other Switching application.
標簽： 8205a6
上傳時間： 2022-02-14
上傳用戶：
半導體物理學 劉恩科 第六版本書較全面地論述了半導體物理的基礎知識。全書共13章，主要內容為：半導體的晶格結構和電子狀態；雜質和缺陷能級；載流子的統計分布；載流子的散射及電導問題；非平衡載流子的產生、復合及其運動規律；pn結；金屬和半導體的接觸；半導體表面及MIS結構；半導體異質結構；半導體的光、熱、磁、壓阻等物理現象和非晶態半導體。本書可作為工科電子信息類微電子技術、半導體器件專業學生的教材，也可供從事相關專業的科技人員參考叢編項：普通高等教育"十一五"國家級規劃教材
標簽： 半導體物理學
上傳時間： 2022-03-19
上傳用戶：
