HM4056G Datasheet | H&M Semiconductor

FEATURES DESCRIPTION  Programmable Charge Current up to 1A The HM4056G is a plete constant-current/constant  No MOSFET, Sense Resistor or Blocking Diode voltage linear charger for single cell lithium-ion Required batteries. Its pact size and low external  Constant-Current/Constant-Voltage Operation ponent count make the HM4056G ideally suited for with Thermal Regulation to Maximize Charge portable applications. Furthermore, the HM4056G is Rate without Risk of Overheating specifically designed to work charging the battery  Charge Single Cell Li-Ion Batteries Directly from the power supplies of the 5V adapter and the from USB Port USB port.  Charge Current Monitor Output for Gas No external sense resistor is needed, and no blocking Gauging diode is required due to the internal MOSFET  Preset 4.2V Charge Voltage with 1% Accuracy  2.9V Trickle Charge Threshold  C/10 Charge Termination  55μA Supply Current in Shutdown Mode 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  Automatic Recharge  Soft-Start Limits Inrush Current  Available in the Green ESOP8 Package programmed externally with a single resistor. The HM4056G automatically terminates the charge cycle when the charge current drops to 1/10th the programmed value after the final float voltage is reached. Other features include charge current monitor, under voltage lockout, automatic recharge and a status pin to indicate charge termination and the presence of an input voltage. The HM4056G is available in ESOP8 package requiring minimum board space and smallest ponents. It is rated over the -40°C to +85°C temperature range. APPLICATIONS TYPICAL APPLICATIONS  Mobile Phones, PDAs, MP3 Players  Charging Docks and Cradles  Bluetooth Applications  Other Handheld Devices Green Red R3 R4...