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Battery Charger ICs
Maximize Capacity, Extend Life and Monitor the Charging Process of Batteries
Featured Products
MCP73837
A highly integrated, full-featured linear Li-ion battery charger with USB and AC adapter inputs
- Automatic power source selection
- Programmable charge current up to 1A from AC adapter
- Integrated USB control with selectable 100 mA and 500 mA charge rates
- Automatic charge control with selectable current threshold and safety timer
MCP73831
Serves as a workhorse for a wide variety of charging applications
- Multiple voltage regulation options
- Adheres to all USB power bus specifications
- Programmable charge current, selectable preconditioning and end-of-charge control
MCP73871
Offers powerful integrated battery management
- Integrated system load sharing and battery charge management
- Constant current and constant voltage operation
- Wide variety of selectable and programmable options
MCP73830
A tiny option to save space in portable electronic applications
- 2 × 2 TDFN package
- Programmable charge current up to 1000 mA
- Soft start to avoid inrush current
Featured Reference Designs
High-Voltage, Modular Battery Management System Reference Design
Design Benefits include:
- Easily supports higher pack voltages by stacking battery modules, enabling flexible system expansion
- Built‑in monitoring and protection functions, including Overvoltage (OV), Undervoltage (UV), Overcurrent Protection (OCP) and Short-Circuit Protection (SCP), to support system safety and reliability
- Isolated inter‑module communication, such as 10BASE‑T1S, to reduce complexity and support system operation
- Supports State of Charge (SOC) and State of Health (SOH) algorithms, cell balancing and hardware‑based security using CryptoAuthentication™ devices
Solar MPPT Battery Charger Reference Design
Design Benefits include:
- Connects to solar panels with output voltages between 15–60 V
- Flexibility to provide output power between 10–400W
- Connects to a single solar panel or series and parallel connected arrays
- Maximum Power Point Tracking (MPPT) to achieve the most efficient panel operating point
- Charge profiles for multiple battery chemistries
Solar Battery LED Streetlight Reference Design
Design Benefits include:
- Connects to solar panels with output voltages between 15–60 V
- Flexibility to provide output power between 20–400W
- Connects to a single solar panel or series and parallel connected arrays
- Maximum Power Point Tracking (MPPT) to achieve the most efficient panel operating point
- Charge profiles for multiple battery chemistries