The **ADP5063ACPZ-1-R7** is a highly integrated linear battery charger management IC designed for single-cell Li-Ion or Li-Polymer batteries. It is manufactured by Analog Devices and is specifically optimized for USB power sources and portable applications. --- ### ## Technical Specifications Overview | Parameter | Specification | | :--- | :--- | | **Input Voltage Range** | 4.0V to 6.7V (Absolute Max: 20V) | | **Maximum Charge Current** | 1.3 Amps | | **Interface** | I2C Programmable | | **Battery Voltage Range** | 3.5V to 4.5V (Programmable) | | **Package** | 20-lead LFCSP (4mm x 4mm) | | **Operating Temperature** | -40°C to +125°C | --- ### ### Key Electronic Components & Functions 1. **Linear Charger Architecture**: Unlike switching chargers, this uses a linear regulator approach. This minimizes Electromagnetic Interference (EMI) and reduces the number of external components (no inductor required), making it ideal for noise-sensitive audio or medical devices. 2. **I2C Interface**: Most parameters are software-controllable. A microcontroller can communicate via I2C to adjust: * Fast charge current. * Termination voltage. * Thermal limits. * Safety timers. 3. **Power Path Management**: The IC manages the power distribution between the input source (USB/Wall adapter), the battery, and the system load. It allows the system to power up even if the battery is completely discharged or missing. 4. **Integrated Protection Circuits**: * **Thermal Management**: Reduces charge current if the die temperature exceeds a specific threshold. * **Overvoltage Protection (OVP)**: Protects the system from high-voltage transients on the USB input. * **JEITA Compliance**: Adjusts charging parameters based on battery temperature (requires an external NTC thermistor). 5. **LDO Mode**: When the battery is full or disconnected, the device can act as a high-current Low Dropout Regulator (LDO) to provide steady power to the system. --- ### ### Typical Application Circuit The circuit typically requires minimal external components: * **C_in / C_out**: Decoupling capacitors (usually 4.7µF to 10µF). * **NTC Thermistor**: Connected to the `THR` pin for temperature sensing. * **Pull-up Resistors**: For the I2C lines (`SDA` and `SCL`). ```c // Example I2C pseudo-code to set Charge Current to 500mA write_register(CHG_CURR_REG, 0x05); // Example to enable charging write_register(PMOD_REG, 0x01); ``` --- ### ### Part Number Breakdown * **ADP5063**: Base model number. * **ACPZ**: Plastic Lead Frame Chip Scale Package (RoHS compliant). * **1**: Specific internal default configuration (factory programmed). * **R7**: Denotes 7-inch reel packaging (usually 1,500 pieces).