Monolithic Power Systems (MPS) MP2615D 1-Cell Li-Ion Battery Charger

Introduction

The MP2615D from Monolithic Power Systems (MPS) is a highly efficient 1-cell lithium-ion and lithium-polymer battery charger. Designed with built-in power MOSFETs, this monolithic switching charger is tailored to deliver reliable performance and safety features, making it an ideal choice for various portable applications.

Part Description

The MP2615D is engineered to provide up to 2A of charge current, configurable through an accurate current sense resistor. It operates within a voltage range of 4.5V to 18V and utilizes two control loops to ensure precise constant current (CC) and constant voltage (CV) charging. The device features a 99% duty cycle in constant-off-time (COT) mode, optimizing charge current as the battery voltage approaches the input voltage. Safety is paramount, with continuous monitoring of battery temperature and charging status, along with internal reverse-blocking protection. The compact QFN-16 package (3mm x 3mm) makes it suitable for space-constrained designs.

Applications

• Smartphones
• Portable handheld devices
• Portable media players
• Wearable technology
• Battery-powered tools

Industries

• Consumer electronics
• Automotive
• Medical devices
• Telecommunications
• Industrial automation

Usage Ideas

1. Smartphone Charger: Design a compact charging circuit for a smartphone that utilizes the MP2615D to ensure fast and safe charging of the device's lithium-ion battery.
2. Wearable Device: Create a wearable fitness tracker that incorporates the MP2615D for efficient battery management, allowing for longer usage times between charges.
3. Portable Media Player: Develop a portable media player that leverages the MP2615D to provide a reliable charging solution, enhancing user experience with quick recharge capabilities.

Conclusion

The MP2615D from Monolithic Power Systems is a versatile and efficient solution for charging 1-cell lithium-ion and lithium-polymer batteries. With its robust features, including high charge current, safety monitoring, and compact design, it is well-suited for a wide range of applications across various industries. Whether for consumer electronics or industrial devices, the MP2615D stands out as a reliable choice for modern battery management needs.