SGM41562.pdf
No.13517
• Fully Autonomous Charger for Single-Cell Li-Ion and
Li-Polymer Battery
• 21V Maximum Input Voltage Rating with Over-Voltage
Protection
• ±0.6% Charging Voltage Accuracy
• 18V Maximum Operating Voltage (SGM41562A)
• 5.75V Maximum Operating Voltage (SGM41562B)
• I2C Interface for Parameters Setting/Status Reporting
• Fully Integrated Power Switches
• No External Blocking Diode Required
• Built-in Robust Charge Protections Including Battery
Temperature Monitor and Programmable Timer
• Battery or PCB Over-Temperature Protection
• System Reset Function
• Built-in Battery Disconnection Function
• Thermal Limit Regulation on Chip
• Available in a Green WLCSP-1.52×1.52-9B Pack
The SGM41562A and SGM41562B are highly integrated, I2C programmable, single-cell Li-Ion or Li-polymer battery chargers with system power path management. They are specifically designed for portable applications requiring minimum board space and small external components. The charging profile includes pre-charge, constant-current and constant-voltage phases. Several safety and protection features are included such as built-in safe charge timer to set maximum duration of charge and pre-charge, input voltage and current monitoring, internal (junction) and external (battery) temperature monitoring, input current limiting and load current limiting. SGM41562A can charge with a wide input voltage range of up to 18V compared to the SGM41562B which has 5.75V charging range, but the rest of their functions are the same.
