UN8HX SOT23-5 original

UN8HX SOT23-5

original

The UN8HX is a complete

constant-current/constant voltage linear

charger for single cell lithium-ion batteries.
Its ThinSOT package and low external
suited for portable applications.
designed to work within USB power
specifications.
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
charge voltage is fixed at 4.2V, and the
charge current can be programmed
automatically terminates the charge cycle
when the charge current drops to 1/10th the
programmed value after the final float
voltage is reached.

When the input supply (wall adapter or USB
automatically enters a low current state,
dropping the battery drain current to less
shutdown mode, reducing the supply
current to 25 A.  Other features include
charge current monitor, undervoltage
lockout, automatic recharge and a status pin
to indicate charge termination and the
presence of an input voltage.
the industry standard SOT-23-5 power
packages (or upon request).