MC34675AEPR2

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MC34675AEPR2 Application Field and Working Principle

The MC34675AEPR2 is a multifunction power management integrated circuit (PMIC - Battery Chargers) designed for cost effective solution for mobile devices applications. It is an ideal device for Li-Ion battery-based applications and provides energy savings power management for any portable application.

The MC34675AEPR2 is a low-power monolithic battery charger and power manager. It has various operating modes and is suitable for both Li-Ion and Li-Pol batteries. The MC34675AEPR2 is an ideal solution for a wide range of applications, including mobile phones, PDAs, MP3 players and digital cameras.

Features

• Integrated battery charger and power manager
• Li-Ion and Li-Pol battery support
• Four-level charge current control up to 1.5 A
• Low power battery charger and power manager
• Various operating modes
• High efficiency

Applications

• Mobile phones
• PDAs
• MP3 Players
• Digital Cameras
• GPS Systems
• Medical Instruments

Working Principle

The MC34675AEPR2 is a multifunction power management integrated circuit that is used in battery chargers, power supplies and portable devices. It provides excellent battery charging performance by monitoring the battery’s charge and discharge curves. This allows it to detect the battery’s state of health (the number of discharge/charge cycles, temperature and voltage). With the battery state of health, detailed protection operations can be undertaken, such as over-charge, over-discharge and over-temperature protection. Furthermore, the four levels of charge current control up to 1.5A, and low power battery charger and power manager make it the ideal solution for cost effective battery powered applications.

The MC34675AEPR2 utilizes various operating modes, such as Constant Current (CC) Mode, Constant Voltage (CV) Mode and Float Mode to maximize battery charging efficiency. In CC Mode, the IC limits the current into the battery and delivers current equivalent to the set value. The CV Mode reduces the current, as the battery reaches its set voltage. In Float Mode, the battery is maintained at a constant voltage, and the current is kept at a minimal level.

The MC34675AEPR2 is able to accurately measure the battery temperature by an embedded temperature sensor. This feature provides superior safety measures even in elevated temperature environments. The device holds an internal 0.1µF ESD capacitor, making it suitable for uses in a wider range of battery applications.

Conclusion

The MC34675AEPR2 is an excellent example of a PMIC - Battery Chargers applied in various low-power mobile device applications. Its comprehensive range of features ensures optimal battery performance and energy savings, providing users with an ideal solution for cost effective power management.

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