The SGM4056 is a cost-effective, fully integrated high
input voltage single-cell Li-ion battery charger. The
charger uses a CC/CV charge profile required by Li-ion
battery. The charger accepts an input voltage up to
26.5V but is disabled when the input voltage exceeds
the OVP threshold, typically 6.8V (SGM4056-6.8) or
10.5V (SGM4056-10.5), to prevent excessive power
dissipation. The 26.5V rating eliminates the overvoltage
protection circuit required in a low input voltage
charger.
The charge current and the end-of-charge (EOC)
current are programmable with external resistors.
When the battery voltage is lower than typically 2.55V,
the charger preconditions the battery with typically 18%
of the programmed charge current. When the charge
current reduces to the programmable EOC current
level during the CV charge phase, an EOC indication is
provided by the CHG pin, which is an open-drain
output. An internal thermal foldback function protects
the charger from any thermal failure. SGM4056-6.8YTDB8G/TR
SGM4056-6.8YTDC8G/TR
SGM4056-6.8YTDE8G/TR
SGM4056-6.8YPS8G/TR
SGM4056-10.5YTDB8G/TR
SGM4056-10.5YTDC8G/TR
SGM4056-10.5YTDE8G/TR
SGM4056-10.5YPS8G/TR
资料下载
