MCP73213T-A6SI/MF: A Comprehensive Dual-Cell Li-Ion/Li-Polymer Charge Management Solution
In the realm of portable electronics and embedded systems, efficient and reliable battery charging is paramount. The MCP73213T-A6SI/MF from Microchip Technology stands out as a highly integrated, linear charge management controller designed specifically for dual-cell Lithium-Ion or Lithium-Polymer batteries. This device encapsulates a complete charging system within a single package, simplifying design and enhancing performance for a wide array of applications.
Key Features and Operational Overview
The core functionality of the MCP73213T-A6SI/MF is to manage the precise charging cycle required by lithium-based batteries: pre-conditioning (trickle charge), constant current, and constant voltage. Its integrated pass transistor and sense resistor eliminate the need for external components, significantly reducing the overall footprint and Bill of Materials (BOM). A critical feature is its input voltage regulation (VREG), which allows the IC to operate from a higher voltage adapter (e.g., 9V or 12V) while regulating its input to a lower, more optimal voltage (e.g., 5.5V). This drastically reduces power dissipation and thermal stress during charging, enhancing efficiency and reliability.
The charger supports a programmable charge current up to 1.5A, set via a single external resistor, providing design flexibility for different battery capacities. It also includes a plethora of safety and management features, such as automatic power-down and thermal regulation. The thermal regulation loop proactively monitors the die temperature and reduces the charge current if an excessive temperature rise is detected, preventing damage to both the IC and the battery. Furthermore, the controller offers comprehensive status monitoring outputs, including `CHRG` (charging) and `STAT` (statistical fault), enabling easy interfacing with microcontrollers or user indicator LEDs.
Typical Applications
The robustness and integration of the MCP73213T-A6SI/MF make it an ideal choice for numerous applications. It is perfectly suited for:
Portable Medical Devices
E-Bikes and Personal Transporters
High-End Portable Audio Equipment
Backup Power and UPS Systems
Robotics and Drones
ICGOODFIND: The MCP73213T-A6SI/MF is an exemplary solution for dual-cell Li-Ion/Polymer charging, offering a rare combination of high integration, robust thermal management, and critical safety features. Its ability to efficiently handle higher input voltages makes it a superior choice for designs requiring reliability and a compact form factor, streamlining the development process from prototype to production.
Keywords:
1. Dual-Cell Li-Ion Charger
2. Linear Charge Management
3. Input Voltage Regulation (VREG)
4. Thermal Regulation
5. Integrated Pass Transistor
