国产免费av片在线观看,又色又爽又黄的视频网站免费 ,国产色精品久久人妻无码看片软件,熟妇人妻无乱码中文字幕真矢织江,国产又粗又猛又大爽又黄,男女啪啪做爰高潮全过有多少姿势,污污又黄又爽免费的网站,公交车上的疯狂乱牲交小说,2022色婷婷综合久久久,免费99精品国产自在在线

 General Description

  The LP4054 is a complete constant-current/constant- voltage linear charger for single cell lithium-ion batteries. Its SOT23-5 package and low external component count make the LP4054 ideally  suited  for  portable  applications.  Furthermore,  the LP4054 is specifically designed to work within USB power specifications. No external sense resistor is needed, and no blocking  diode  is required  due  to  the  internal  MOSFET architecture. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The charge voltage is fixed at 4.2V, and the charge current can be programmed externally with a single resistor. The LP4054 automatically terminates the charge cycle when the charge current drops to 1/10th the programmed value after the final float voltage is reached. When the input supply (wall  adapter or  USB  supply)  is  removed,  the  LP4054 automatically enters a low current state, dropping the battery drain current to less than 1µA. Other features include charge current monitor, automatic recharge and a status pin to indicate charge termination and the presence of an input voltage.