Product description
The Qualcomm SMB-1350-0-49CWNSP-HR-01-0-00 is a high-performance battery management integrated circuit designed to efficiently manage and monitor lithium-ion and lithium-polymer batteries. The IC's advanced features and compact design make it suitable for modern electronic devices requiring precise and reliable battery management.
Battery Management: The IC uses a constant current/constant voltage (CC/CV) charging method to ensure optimal battery health and performance. It maintains a standard charging voltage of 4.2V per cell and supports adjustable charging currents up to 1.5A or more. This allows the IC to handle different battery types and sizes effectively, optimizing both charging efficiency and safety.
Protection Mechanisms: The SMB-1350-0-49CWNSP-HR-01-0-00 includes essential protection features to ensure the safety of the battery and the IC:
Overcharge Protection: Prevents excessive charging that could damage the battery.
Over-discharge Protection: Avoids discharging the battery below its minimum safe voltage.
Over-current Protection: Controls current flow to prevent overheating and damage.
Short-circuit Protection: Protects against short circuits that could lead to significant harm.
Thermal Management: To manage thermal conditions effectively, the IC incorporates thermal shutdown functionality. This feature engages if the IC’s temperature exceeds safe operating limits, thereby preventing potential thermal damage and ensuring consistent operation.
Communication and Integration: The I2C interface facilitates real-time communication with external microcontrollers or processors. This enables precise monitoring and dynamic adjustment of battery parameters, enhancing the overall battery management process.
Compact Design: The SMB-1350-0-49CWNSP-HR-01-0-00 is housed in a QFN package, which supports efficient integration into compact electronic designs. Its small form factor is particularly suited for applications where space is limited, such as in smartphones, tablets, and wearable devices.
Specification parameters
Input Voltage Range:
Range: 3.5V to 5.5V. This input voltage range allows the IC to operate with a variety of power sources, making it adaptable to different system requirements.
Charging Current:
Adjustable Charging Current: Capable of supporting charging currents up to 1.5A or higher. This flexibility allows for customization of the charging rate to match the specific needs of the battery and application.
Charge Voltage Regulation:
Regulation Voltage: Typically set at 4.2V per cell, which is standard for lithium-ion (Li-ion) batteries. The IC also offers adjustability to accommodate different battery voltages if required.
Protection Features:
Overcharge Protection: Prevents the battery from being charged beyond its maximum safe voltage, reducing the risk of battery damage.
Over-discharge Protection: Protects the battery from discharging below its minimum safe voltage, which can prevent damage and extend battery life.
Over-current Protection: Limits the current to avoid overheating and potential damage to the IC and battery.
Short-circuit Protection: Provides safeguards against short circuits that could otherwise cause significant damage.
Communication Interface:
I2C Interface: Allows for real-time communication with external controllers, enabling effective monitoring and management of the battery status and charging process.
Thermal Management:
Thermal Shutdown: Activates if the IC’s temperature exceeds safe operational limits, ensuring protection against overheating and maintaining reliable operation.
Package Type:
Package: QFN (Quad Flat No-Lead), which supports compact and efficient integration into space-constrained designs.
