GENERAL DESCRIPTION
The SGM40560 is designed for the monolithic circuit
with high-precision linear constant-current, and
constant-voltage charging, which is specifically for
small capacity Li-Ion/polymer Li-Ion secondary battery.
It can complete the whole processes of pre-charge,
fast-charge, trickle floating charge, voltage fold-back
holding, resistive voltage drop compensation and
recharge stand-alone. The maximum charge voltage is
fixed with five options:
SGM40560-3.65 corresponds to 3.65V/3.709V/4.547V
SGM40560-4.05 corresponds to 4.05V/4.108V/5.045V
SGM40560-4.2 corresponds to 4.2V/4.257V/5.235V
SGM40560-4.3 corresponds to 4.3V/4.356V/5.363V
SGM40560-4.4 corresponds to 4.4V/4.466V/5.484V
The charge current is set with the external resistor. The
slow blinking LED indicates charging in progress and
the continuous shining LED within a certain time
indicates charging completion, which can be charged
even with weak energy. It can operate with
constant-voltage power supply, additionally, depending
on its features and control structure. It can charge for
the loose coupling coil with large voltage fluctuations
and it also works for the solar batteries with reverse
current. Therefore, it can provide flexible power supply
options for wearable devices and mini portable devices.
It has the voltage fold-back holding function and
thermal current limit function so that the external power
source can be used to supply power to the load for a
long time safely and stably.
The SGM40560 is available in Green TDFN-2×2-6AL
and SOIC-8 (Exposed Pad) packages and is rated over
the -40℃ to +125℃ temperature range

FEATURES
● Stand-Alone Working of Complete Processes for
Single-Cell Battery Charging
● Suitable for Li-Ion Phosphate Battery/
Li-Ion/Polymer Li-Ion/Lithium Titanate/
Nickel-Metal Hydride Secondary Battery and
EDLC Capacitor Charging
● Optional Maximum Charge Voltage:
3.65V to 5.5V
● High Accuracy Safe and Fast Charging
● 4% Output Voltage Fold-Back Holding Function
● Works with Loose Coupling Coil
● Works with Solar Batteries
● Saturated Conduction Charging
● Automatic Thermal Current Limit
● Power Saving Indication Mode
● Available in Green TDFN-2×2-6AL and SOIC-8
(Exposed Pad) Packages

APPLICATIONS
Bluetooth Headsets, Bluetooth Mouses
Wireless Thermometers, Wireless Oximeters, Wireless
Pulsimeters
Active Keys, Active Beacons
Photovoltaic Storage Maintenance, Hub Dynamo
Storage Maintenance