MCP73837/8
Advanced Stand-Alone Li-Ion/Li-Polymer Battery Charge
Management Controller with Autonomous AC Adapter or
USB Port Source Selection
Features Applications Highly Accurate Preset Voltage Regulation:
В±0.5% Available Voltage Regulation Options:
-4.20V, 4.35V, 4.4V or 4.5V Complete Linear Charge Management Controller:
-Autonomous Power Source Selection
-Integrated Pass Transistors
-Integrated Current Sense
-Integrated Reverse Discharge Protection Constant Current (CC)/Constant Voltage (CV)
Operation with Thermal Regulation Selectable USB Port Charge Current:
-Low: 1 Unit Load
-High: 5 Unit Loads Programmable AC Adapter Charge Current:
-15 mA – 1000 mA Two-Charge Status Outputs Power-Good Monitor: MCP73837 Timer Enable: MCP73838 Automatic Recharge:
-Selectable Voltage Threshold Automatic End-of-Charge Control:
-Selectable Charge Termination Current Ratio
-Selectable Safety Timer Period Preconditioning of Deeply Depleted Cells – Can
Be Disabled Battery Cell Temperature Monitor UVLO (Undervoltage Lockout) Automatic Power-Down When Input Power Is
Removed Low-Dropout (LDO) Linear Regulator Mode Numerous Selectable Options Available for a
Variety of Applications:
-Refer to Section 1.0 “Electrical Characteristics” for Selectable Options
-Refer to the “Product Identification System” …