AP9101CAK6-BGTRG1

Series:	*
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Package / Case:	SOT-23-6
Supplier Device Package:	SOT-26

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Introduction to PMIC - Battery Management

Power management integrated circuit (PMIC) is a single integrated circuit that provides integrated power management functions in electronic systems. PMICs are often designed to provide technical support for back-end power management, including power supply sequencing, power conversion and power conditioning, voltage regulation, and the monitoring, protection and control of electrical circuits. The battery management is an important application area of power management integrated circuit (PMIC). Battery management for consumer and industrial devices is becoming increasingly important as a wider range of battery chemistries become available.

AP9101CAK6-BGTRG1: Overview

The AP9101CAK6-BGTRG1 is an ultra-low quiescent current, low-cost, Li-Ion and Li-polymer battery charger IC designed for portable applications. It offers comprehensive precision charging solutions for Li-Ion/Polymer battery packs up to 4 cells. It has an integrated AC adapter current size function and an auto-detection feature, so that users can adjust the maximum adapter current according to their needs. It also features an auto-detection feature to detect the AC adapter current size whenever the AC adapter is inserted. The device supports a variety of system requirements, including low-battery detection, end-of-charging detection, and thermal protection.

AP9101CAK6-BGTRG1 Application Field

The AP9101CAK6-BGTRG1 is a highly efficient, low-cost Li-Ion/Li-Polymer battery charger IC ideal for notebook PCs, Ultra-Mobile PCs (UMPCs), tablet PCs, digital still cameras (DSCs), mobile phones, and other portable applications. The wide ADC input voltage range of 4.0V to 18V also makes it suitable for a variety of external battery charger applications. The integrated power switches, precision current/voltage measurement circuit, and OVP protection circuit make it ideal for charging systems with high isolation requirements.

AP9101CAK6-BGTRG1 Working Principle

The AP9101CAK6-BGTRG1 working principle can be divided into two steps. The first step is when the AC adapter is plugged in. The AP9101CAK6- BGTRG1 will detect the adapter current and select the maximum current allowable according to the adapter current. The second step is the charging process. When the AC adapter is plugged into the battery, the AP9101CAK6-BGTRG1 starts the battery charging process, which comprises the following stages: pre-charge, constant current phase, and constant voltage phase. During this phase, the AP9101CAK6-BGTRG1 constantly monitors the battery voltage and current, adjusting the charging parameters as necessary to ensure a safe and efficient charging process. In addition, the AP9101CAK6-BGTRG1 features a low-battery detection circuit, which detects when the battery voltage is below a certain threshold and shut off the charging process.

Conclusion

The AP9101CAK6-BGTRG1 is a low-cost, ultra-low quiescent current Li-Ion/Li-Polymer battery charger IC. It is ideally suited for portable applications such as notebook PCs, Ultra-Mobile PCs (UMPCs), tablet PCs, digital still cameras (DSCs), mobile phones, and other portable applications. The AP9101CAK6-BGTRG1 working principle consists of two stages: the AC adapter detection stage and the charging process. During the charging process, the AP9101CAK6-BGTRG1 monitors the battery voltage and current, and adjusts the charging parameters as necessary to ensure a safe and efficient charging process. The integrated power switches, precision current/voltage measurement circuit, and OVP protection circuit make the AP9101CAK6-BGTRG1 an ideal choice for Li-Ion/Li-Polymer battery charging applications.

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