Product description
The Qualcomm SMB-1351-0-49CWLNSP-TR-02-0-01 is an advanced battery management IC tailored for efficient charging and monitoring of lithium-ion and lithium-polymer batteries. It provides a range of features designed to ensure reliable performance and safety in modern electronic devices.
Battery Management: The SMB-1351-0-49CWLNSP-TR-02-0-01 employs a sophisticated constant current/constant voltage (CC/CV) charging algorithm. This ensures that the battery is charged effectively, with a regulated voltage typically set to 4.2V per cell. The adjustable charging current capability allows the IC to accommodate various battery sizes and types, making it versatile for different applications.
Protection Mechanisms: Safety is a priority with the SMB-1351-0-49CWLNSP-TR-02-0-01. It includes multiple protection features:
Overcharge Protection: Prevents the battery from exceeding its safe maximum voltage, thereby avoiding potential damage.
Over-discharge Protection: Ensures the battery is not discharged below its safe minimum voltage, protecting it from damage.
Over-current Protection: Limits current to safe levels to prevent damage from excessive current flows.
Short-circuit Protection: Provides protection against short circuits, which can otherwise lead to damage of the IC or the battery.
Thermal Management: The IC is equipped with thermal management features, including thermal shutdown. If the temperature of the IC rises beyond safe operating limits, the thermal shutdown feature activates to protect the IC and surrounding components from heat damage, ensuring reliable and safe operation.
Communication and Integration: The I2C interface of the SMB-1351-0-49CWLNSP-TR-02-0-01 allows for seamless integration with external microcontrollers or processors. This interface supports real-time monitoring of battery status and enables dynamic adjustment of charging parameters based on the data received, enhancing overall system intelligence and flexibility.
Compact and Versatile: Encased in a QFN package, the SMB-1351-0-49CWLNSP-TR-02-0-01 is designed for use in applications where space is at a premium. Its small footprint makes it ideal for compact devices such as smartphones, tablets, and wearables, where efficient battery management in a space-constrained design is crucial.
Specification parameters
Input Voltage Range:
Typical Range: 3.5V to 5.5V, accommodating various power sources and providing flexibility in different applications.
Charging Current:
Programmable Charging Current: Supports adjustable charging currents, typically up to 1.5A or higher, based on application requirements and battery capacity.
Charge Voltage Regulation:
Regulation Voltage: Typically set at 4.2V per cell, with adjustability for different battery types and requirements.
Protection Features:
Overcharge Protection: Prevents the battery from charging beyond its maximum safe voltage.
Over-discharge Protection: Protects against excessive discharge that could damage the battery.
Over-current Protection: Safeguards against currents exceeding safe limits.
Short-circuit Protection: Guards against short circuits that could damage the IC or battery.
Communication Interface:
I2C Interface: Provides a method for real-time data exchange with external controllers, facilitating battery monitoring and control.
Thermal Management:
Thermal Shutdown: Activates if the IC's temperature exceeds safe operating levels, preventing overheating and ensuring safe operation.
Package Type:
Package: QFN (Quad Flat No-Lead), offering a compact design suitable for space-constrained applications.
