Product description
The Qualcomm SMB-1351-0-049CWLNSP-HR-02-0-14 is a highly advanced battery management IC designed for precise control and monitoring of lithium-ion and lithium-polymer batteries. It is tailored to meet the needs of modern electronic devices, offering enhanced performance and safety features.
Battery Management: This IC uses a constant current/constant voltage (CC/CV) charging method, which is critical for maintaining battery health and performance. The SMB-1351-0-049CWLNSP-HR-02-0-14 regulates the charging voltage to a standard 4.2V per cell and supports adjustable charging currents, typically up to 1.5A or more. This allows it to accommodate various battery sizes and types, ensuring efficient and safe charging.
Protection Mechanisms: To ensure safety, the SMB-1351-0-049CWLNSP-HR-02-0-14 incorporates multiple protection features:
Overcharge Protection: Ensures that the battery does not exceed its maximum safe voltage during charging.
Over-discharge Protection: Protects the battery from being discharged below its safe minimum voltage, preventing potential damage.
Over-current Protection: Limits the current to safe levels to avoid overheating and damage.
Short-circuit Protection: Provides a safeguard against short circuits that could damage the IC or battery.
Thermal Management: The IC includes robust thermal management features. It is equipped with thermal shutdown functionality that activates if the IC’s temperature rises beyond safe limits. This feature helps to protect the IC and the device from heat-related damage, ensuring stable and reliable operation.
Communication and Integration: The SMB-1351-0-049CWLNSP-HR-02-0-14 supports an I2C communication interface, allowing it to interface with external microcontrollers or processors. This feature enables real-time monitoring and adjustment of battery status and charging parameters, providing flexibility and control for effective battery management.
Compact Design: The IC’s QFN package is compact and efficient, making it ideal for use in applications where space is limited. This design is particularly well-suited for integration into small devices such as smartphones, tablets, and wearable electronics, where space-saving and efficient battery management are essential.
Specification parameters
Input Voltage Range:
Range: 3.5V to 5.5V, providing flexibility to accommodate different power sources and application needs.
Charging Current:
Adjustable Charging Current: Typically supports up to 1.5A or more, allowing for customization based on the specific battery and application requirements.
Charge Voltage Regulation:
Regulation Voltage: Typically set to 4.2V per cell, which is standard for Li-ion batteries, with options to adjust for different battery configurations.
Protection Features:
Overcharge Protection: Prevents the battery from charging beyond its maximum safe voltage.
Over-discharge Protection: Avoids battery damage by preventing discharge below safe voltage levels.
Over-current Protection: Limits current to prevent overheating and damage to the IC and battery.
Short-circuit Protection: Protects against short circuits that could cause significant damage.
Communication Interface:
I2C Interface: Facilitates real-time data exchange with external controllers, enabling effective battery monitoring and management.
Thermal Management:
Thermal Shutdown: Activates if the IC’s temperature exceeds safe operating limits, protecting the device from overheating.
Package Type:
Package: QFN (Quad Flat No-Lead), providing a compact and efficient form factor suitable for space-constrained applications.
