Product description
The Qualcomm SMB-1351-0-49CWLNSP-HR-01-0-05 is a high-performance battery management IC tailored for precise control and monitoring of lithium-ion and lithium-polymer batteries. Its design ensures optimal performance, safety, and compactness, making it suitable for a wide range of modern electronic devices.
Battery Management: This IC employs a constant current/constant voltage (CC/CV) charging method, which is essential for maintaining battery health and performance. It regulates the charging voltage to a standard 4.2V per cell and supports adjustable charging currents, typically up to 1.5A or more. This flexibility allows it to work with various battery sizes and types, ensuring efficient and safe charging.
Protection Mechanisms: The SMB-1351-0-49CWLNSP-HR-01-0-05 includes several safety features to protect both the battery and the IC:
Overcharge Protection: Prevents the battery from charging beyond its maximum safe voltage, reducing the risk of overcharge damage.
Over-discharge Protection: Ensures the battery does not discharge below safe voltage levels, which could otherwise lead to damage.
Over-current Protection: Controls the current to avoid overheating and potential damage to the IC and battery.
Short-circuit Protection: Provides a safeguard against short circuits that could cause significant damage to the IC or battery.
Thermal Management: To address thermal issues, the SMB-1351-0-49CWLNSP-HR-01-0-05 features thermal shutdown functionality. This feature is activated if the IC's temperature exceeds safe operating limits, preventing overheating and ensuring reliable operation.
Communication and Integration: The IC includes an I2C communication interface, allowing for effective data exchange with external microcontrollers or processors. This feature supports real-time monitoring and dynamic adjustment of battery status and charging parameters, providing enhanced control over the battery management process.
Compact Design: Encased in a MQFN package, the SMB-1351-0-49CWLNSP-HR-01-0-05 is well-suited for space-constrained applications. Its compact design makes it ideal for integration into small electronic devices such as smartphones, tablets, and wearables, where efficient space utilization and effective battery management are crucial.
Specification parameters
Input Voltage Range:
Range: 3.5V to 5.5V, accommodating a wide range of power sources and application needs.
Charging Current:
Adjustable Charging Current: Supports currents up to 1.5A or higher, allowing flexibility to meet specific battery and application requirements.
Charge Voltage Regulation:
Regulation Voltage: Typically set to 4.2V per cell, which is standard for Li-ion batteries. The IC also allows for adjustments to accommodate various battery configurations.
Protection Features:
Overcharge Protection: Prevents excessive charging of the battery beyond its safe voltage limit.
Over-discharge Protection: Avoids discharging the battery below safe voltage levels, protecting against damage.
Over-current Protection: Limits the current to prevent overheating and potential damage to the IC and battery.
Short-circuit Protection: Safeguards against short circuits that could damage the IC or battery.
Communication Interface:
I2C Interface: Enables real-time data exchange with external controllers, enhancing battery monitoring and management.
Thermal Management:
Thermal Shutdown: Activates to protect the IC from overheating if the temperature exceeds safe thresholds.
Package Type:
Package: MQFN (Micro Quad Flat No-Lead), designed for compact and efficient integration into space-constrained applications.
