GENERAL DESCRIPTION

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 EN

input 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.

The SGM40565 is available in Green WLCSP-1.3×0.7-6B

and TDFN-2×2-8L packages and is rated over the -40℃

to +85℃ temperature range.

FEATURES

● 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

APPLICATIONS

Activation Keys

Battery Powered Appliances

IOT Gadgets

Battery Powered Instruments

Toothbrush Shaver Thermometer