Lowpowersemi LP28056S
The LP28056S is a complete constant-current / constant-voltage linear charger for single cell lithium-ion batteries. Its ESOP-8 package and low external component count make the LP28056S ideally suited for portable applications. The charge voltage is fixed at 4.2V, and the charge current can be ISET rammed externally with a single resistor.| Part No. | LP28056S |
|---|---|
| Datasheet | LP28056S Download |
| Manufacturer | Lowpowersemi |
| Description | 1.2A Single-chip Li-ion and Li-POL Charge |
| Buy | Stock & Price |
GENERAL DESCRIPTION
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 LP28056S automatically terminates the charge cycle when the charge current drops to 1/10th the RISET rammed value after the final float voltage is reached. When the input supply is removed, the LP28056S automatically enters a low current state, dropping the battery drain current to less than 1µA. The LP28056S can be put into shutdown mode, reducing the supply current to 1µA. 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. Order Information LP28056S □ □ □ F: Pb-Free Package Type SP: ESOP-8FEATURES
● Programmable Charge Current Up to 1200mA● No MOSFET, Sense Resistor or Blocking Diode Required
● C...
