Product description
The Qualcomm SMB-1351-0-49CWLNSP-HR-02-0-15 is a high-performance battery management integrated circuit designed to provide precise control and monitoring for lithium-ion and lithium-polymer batteries. It combines advanced features with a compact design, making it suitable for a variety of modern electronic devices.
Battery Management: The IC utilizes a constant current/constant voltage (CC/CV) charging methodology to maintain optimal 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 ensures compatibility with different battery types and sizes, optimizing both charging efficiency and safety.
Protection Mechanisms: The SMB-1351-0-49CWLNSP-HR-02-0-15 is equipped with essential protection features:
Overcharge Protection: Prevents the battery from being charged beyond its maximum safe voltage, which helps avoid potential overcharge damage.
Over-discharge Protection: Ensures that the battery does not discharge below its minimum safe voltage, protecting it from possible damage.
Over-current Protection: Limits the current to prevent overheating and possible damage to both the IC and the battery.
Short-circuit Protection: Safeguards against short circuits that could significantly harm the IC or battery.
Thermal Management: To address potential overheating issues, the IC includes thermal shutdown functionality. This feature engages if the IC's temperature exceeds safe operational limits, thus preventing thermal damage and ensuring consistent performance.
Communication and Integration: With its I2C communication interface, the SMB-1351-0-49CWLNSP-HR-02-0-15 allows for efficient real-time data exchange with external microcontrollers or processors. This capability supports effective monitoring and dynamic adjustment of battery parameters, providing enhanced control over the battery management process.
Compact Design: The IC is housed in a QFN package, making it ideal for integration into compact devices where space is at a premium. Its small form factor allows for use in devices such as smartphones, tablets, and wearables, where efficient use of space 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 requirements.
Charging Current:
Adjustable Charging Current: Supports charging currents up to 1.5A or more, allowing customization based on specific battery and application needs.
Charge Voltage Regulation:
Regulation Voltage: Typically set to 4.2V per cell, which is standard for Li-ion batteries. The IC also offers options for voltage adjustment to match different battery specifications.
Protection Features:
Overcharge Protection: Prevents charging the battery beyond its maximum safe voltage.
Over-discharge Protection: Prevents discharging the battery below its minimum safe voltage.
Over-current Protection: Limits current flow to avoid overheating and potential damage.
Short-circuit Protection: Provides protection against short circuits that could cause significant damage.
Communication Interface:
I2C Interface: Facilitates real-time communication with external controllers for effective monitoring and management of battery status.
Thermal Management:
Thermal Shutdown: Activates if the IC's temperature exceeds safe thresholds, protecting against overheating.
Package Type:
Package: QFN (Quad Flat No-Lead), designed for compact and efficient integration into space-constrained applications.
