HM4057D charger equivalent, standalone linear li-lon battery charger.
Programmable Charge Current Up to 800mA No MOSFET, Sense Resistor or Blocking Diode Required Complete Linear Charger for Single Cell Lithium-Ion Batteries Constant-Curren.
Charger for Li-Ion Coin Cell Batteries Portable MP3 Players, Wireless Headsets Bluetooth Applications Multifunction Wris.
The HM4057' is a complete constant-current/ constant voltage linear charger for single cell lithium-ion batteries. Its package and low external component count make the HM4057' ideally suited for portable applications. Furthermore. No external sense .
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