BL4056
1A Lithium Ion Battery Linear Charger BL4056
General Description
BL4056 is a complete constant-current/constant
voltage linear charger for single cell lithium-ion batteries.
With a thermally enhanced 8-PIN SOP package on the bottom and low external component count make the BL4056 ideally suited for portable applications.
Furthermore the BL4056 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 P
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...