SGM40565.pdf
No.11028
● Integrated Pass Element and Current Sensor
● No External Blocking Diode Required
● Low Component Count and Cost
● Programmable Charge Current
● Programmable Full-of-Charge Current
● Charge Current Thermal Fold-Back for Thermal Protection
● 2.48V/2.55V/2.65V Trickle Charge Threshold
● 26.5V Maximum Voltage for the Power Input
● Power Presence and Charge Indications
● Less than 1μA Leakage Current off the Battery When
No Input Power Attached or Charger Disabled
● Available in Green WLCSP-1.3×0.7-6B and TDFN-2×2-8L Packages
The SGM40565 is a fully integrated high input voltage single-cell Li-Ion battery charger. The charger deploys the CC/CV charging profile optimized for Li-Ion battery. It charges at wide input voltage range (up to 26.5V), and adjusts charging current adaptively based on the die junction temperature.
The charge current and the full-of-charge (FOC) current are programmable with external resistors. It safely precharges an over-discharged battery or a new battery with reduced charging current. The device also has LDO mode in which SGM40565 powers load with no battery installed, or maintains loading when battery is fully charged.
4.05V, 4.2V and 4.35V charging voltage options are available.
Its open-drain indication output(s) (PPR and CHG for TDFN-2×2-8L package, and CHG only for WLCSP-1.3×0.7-6B package) together with an ENinput provide simple interface for various applications. When no adapter is attached or when it is disabled, the charger only draws less than 1μA leakage current from the battery.
