ME4064 电源IC 原装现货供应

me4064a  is  a  complete constant-current/constant voltage  linear  charger for  single  cell  lithium-ion batteries. furthermore  the  me4064a  is  specificallydesigned to work within usb power specifications. no external  sense  resistor  is  needed and  no blocking  diode  is  required due  to  the  internal pmosfet architecture  .thermal  feedback  regulates thecharge current  to  limit  the die  temperatureduring high  power  operation  or  high ambient temperature  .the charge voltage  is  fixedat 4.2v,and the charge current can be programmed externally witha  single  resistor.  the  me4064a automatically terminates  the charge cycle when  thecharge current drops to 1/10th the programmed value after the finalfloat voltage is reached.

● preset 4.2v charge voltage with ± 1% accuracy
● automatic recharge
●charges  single  cell  li-ion  batteries directly  from usb port
●c/10 charge termination
● 55μa supply current in shutdown
● 2.9v trickle current charge threshold
● soft-start limits inrush current
●charge status output pin
●available in sot23-5 package