Manufacturer Part Number
MCP73812T-420I/OT
Manufacturer
Microchip Technology
Introduction
The MCP73812T-420I/OT is a highly integrated, linear charge management controller for single-cell Lithium-Ion or Lithium-Polymer batteries. It's specifically designed for USB and AC adapter power sources within a compact SOT-23-5 package.
Product Features and Performance
Linear charge management for single-cell Li-Ion/Li-Polymer batteries
Programmable constant charging current of up to 500mA
Supports 4.2V battery pack voltage standard for Li-Ion/Polymer cells
Maximum supply voltage of 6V allowing for USB and AC adapter charging
Integrated thermal regulation to optimize the charge rate under various conditions
Battery temperature monitoring during charging
Automatic recharge feature
Operating Temperature range: -40°C to +85°C
Product Advantages
Compact design fits easily into portable applications
Integrated power MOSFET and current sensor, minimizing external components
High accuracy preset voltage regulation (+/0.75%) for precise charging
No external blocking diode required, reducing component count
Key Technical Parameters
Battery Chemistry: Lithium Ion/Polymer
Number of Cells: 1
Charge Current Max: 500mA
Battery Pack Voltage: 4.2V
Voltage Supply (Max): 6V
Operating Temperature: -40°C ~ 85°C
Quality and Safety Features
Over-temperature protection
Under-voltage lockout (UVLO)
Automatic end-of-charge control
Compatibility
Designed for use with single-cell Li-Ion and Li-Polymer battery configurations
Application Areas
Portable electronics including smartphones, tablets, and digital cameras
Bluetooth earpieces and health and fitness trackers
Handheld gaming consoles
Small scale medical devices
Product Lifecycle
Currently in an Active phase indicating availability and ongoing support
No indication of nearing discontinuation, replacements, or upgrades at this stage
Several Key Reasons to Choose This Product
Efficient and accurate charge control significantly extends battery life
Small form factor suitable for space-constrained applications
Comprehensive protection features ensure safety and reliability
Compatible with both USB and AC adapter power sources
Easy integration into the design with minimal external components required
Microchip Technology’s reputation for quality and support in power management solutions
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