GENERAL DEscriptION
The SGM41522, SGM41522A and SGM41522B are compact switch standalone battery chargers for single-cell Li-Ion or Li-polymer battery. They are featured with resistor programmable maximum charge current, ordering selections of preset end of charge current and pre-charge current and floating time out. The SGM41522, SGM41522A and SGM41522B also have other safety features, such as over-voltage and over-current protections, fold-back retaining, input under-voltage lockout, battery temperature monitoring and thermal shutdown. These features ensure safe and reliable operation, ease of design and a comfortable user experience.
The SGM41522, SGM41522A and SGM41522B are available in a Green TDFN-2×3-8BL package. They operate over an ambient temperature range of -40℃ to +85℃.
FEATURES
Maximum 2.5A Charging for 4.1V to 4.45V Battery
1.33MHz Switch Frequency
Up to 95.4% Charge Efficiency
92.8% Charge Efficiency at 1.5A from 5V Input
90.1% Charge Efficiency at 1.5A from 9V Input
Charging Voltage and Current Programmable
CC/CV Interface for Charge Current and Battery Voltage Settings
4.2V Input Voltage Regulation
4.2V to 12V Operating Input Voltage Range
Up to 18V Sustainable Voltage
13.5V Over-Voltage Protection with 100ns Turn-Off Timer
Output Voltage Fold-Back Retaining
JEITA Guideline Compliance
T2 Threshold 10℃
Charge Prohibited when > T3
-40℃ to +85℃ Operating Temperature Range
Available in a Green TDFN-2×3-8BL Package
APPLICATIONS
Portable Audio Speaker
Mobile Phone
Wearables
EPOS