Product description
The Qualcomm SMB-1351-0-49CWLNSP-TR-01-0-09 is an advanced battery management IC designed to handle the complexities of charging and monitoring lithium-ion and lithium-polymer batteries. It features a range of sophisticated functionalities aimed at improving battery performance and ensuring safety.
Battery Management: The SMB-1351-0-49CWLNSP-TR-01-0-09 integrates an efficient charging management system using a constant current/constant voltage (CC/CV) approach. This ensures that the battery is charged safely and efficiently, with a regulated charge voltage of 4.2V per cell and adjustable current levels to match the specific needs of the battery and application.
Protection Mechanisms: Safety is a key focus of this IC. It includes overcharge protection to prevent the battery from exceeding its maximum voltage, thus avoiding potential damage. Over-discharge protection ensures that the battery does not discharge below its safe limits. Over-current and short-circuit protection further safeguard the system from excessive current flows and short circuits, respectively, ensuring the integrity and safety of both the battery and the device.
Thermal Management: To maintain reliable performance, the SMB-1351-0-49CWLNSP-TR-01-0-09 incorporates thermal management features. It monitors the temperature of the IC and implements thermal shutdown if temperatures exceed safe thresholds. This protects the IC and the surrounding components from heat damage, enhancing the overall reliability of the system.
Communication and Integration: The IC features an I2C communication interface, allowing for real-time interaction with external microcontrollers or processors. This capability facilitates detailed monitoring of battery status, including charge levels and health metrics, and enables adjustments to charging parameters based on the data received.
Compact and Versatile: Encased in a compact QFN package, the SMB-1351-0-49CWLNSP-TR-01-0-09 is designed to fit into space-constrained environments commonly found in mobile phones, tablets, and other portable electronic devices. Its versatile features and small form factor make it an ideal choice for modern electronics that demand efficient battery management in a compact package.
For detailed information, including exact pin configurations, electrical characteristics, and application guidelines, please refer to the official datasheet and technical documentation provided by Qualcomm.
Specification parameters
Input Voltage Range:
Typical Range: 3.5V to 5.5V, accommodating a variety of power sources.
Charging Current:
Supported Charging Currents: Programmable, typically up to 1.5A or more depending on the application requirements.
Charge Voltage Regulation:
Regulation Voltage: Typically 4.2V per cell, adjustable to fit different battery types and requirements.
Protection Features:
Overcharge Protection: Prevents the battery from exceeding its maximum safe voltage.
Over-discharge Protection: Avoids excessive battery discharge that could damage the battery.
Over-current Protection: Safeguards against excessive current flow.
Short-circuit Protection: Protects against short circuits that could cause damage.
Communication Interface:
I2C Interface: For interfacing with external controllers, enabling real-time data exchange and control.
Thermal Management:
Thermal Shutdown: Activated if the IC’s temperature exceeds safe operating limits to prevent overheating.
Package Type:
Package: QFN (Quad Flat No-Lead), offering a compact and efficient form factor suitable for modern electronic designs.
