AP9101CK6-CQTRG1

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

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PMIC - Battery Management

Power management integrated circuits (PMIC) are a very important component of many electronic devices. PMICs are integrated circuits that help to manage the voltage and current supply to other circuits. Battery management, a type of power management, is one particular important application field of PMICS. Different types of battery management integrated circuits (BMICs) are available for a variety of applications, from many big and small companies around the world. The AP9101CK6-CQTRG1 is a particularly popular and well-known BMIC for a variety of applications. This article will provide an overview of the application field and working principle of the AP9101CK6-CQTRG1.The AP9101CK6-CQTRG1 is a battery management integrated circuit which is designed primarily to manage the charging, discharging and balancing of single cell Li-ion battery packs. It is optimized for wide voltage range single cell Li-ion, Li-Polymer and LiFePO4 battery systems and provides best-in-class charging, discharging and safety features. The AP9101CK6-CQTRG1 device combines functions in one chip, including a Li-ion battery charging controller, a Li-ion battery discharge estimator, a low-voltage battery detector, a temperature monitor and an overcurrent and short circuit protecter. This versatile device can layer these functions to support secondary protection circuits.The AP9101CK6-CQTRG1 is commonly used in applications such as portable consumer products, medical devices, industrial and measurement equipment, robotics, wearables, and gaming consoles. The device is a best-in-class BMIC designed to reduce the number of components and design time required for Li-ion battery powered applications.The main features of the AP9101CK6-CQTRG1 include a Li-ion battery charging controller, a Li-ion battery discharge estimator, a charger, a low-voltage battery detector, a temperature monitor, and overcurrent and short-circuit protection. The AP9101CK6-CQTRG1 is designed to be used in conjunction with a step-down DC/DC converter to charge a single-cell Li-ion/Li-polymer or LiFePO4 battery.The charging controller of the AP9101CK6-CQTRG1 offers three charging profiles: constant current/constant voltage (CC/CV) mode, than constant voltage (CV) mode and trickle charge mode. The device monitor both the battery voltage and the battery temperature to ensure that the battery is safe during charging. It also includes a built-in timer for charging termination. CC/CV charging provides the best result for long term battery life, but other modes can be used.The battery discharge estimator is used to predict the remaining energy in the battery. This helps the AP9101CK6-CQTRG1 device to accurately predict when the battery should be recharged. Hybrid gauge algorithm is used to measure the remaining capacity of the battery. This algorithm takes input from various sources such as charge/discharge current, coulomb counts, voltage and temperature. This ensures the remaining capacity of the battery is measured in an accurate, reliable and consistent manner.The low-voltage battery detector is used to detect when the battery voltage drops below the safe discharge voltage. This is important for protecting the battery from being discharged too low, which could potentially be damaging. The AP9101CK6-CQTRG1 also has a timer function which can be used to terminate the charging or discharging when a preset limit is reached. The temperature monitor offers safety protection from over temperature conditions. This ensures the battery temperature does not exceed a certain limit, which could potentially cause damage or a fire. Overcurrent and short-circuit protection is also included, which helps protect against these types of events.In summary, the AP9101CK6-CQTRG1 is a versatile and powerful BMIC designed to manage and protect Li-ion battery packs. It is widely used in many different application fields, and its various features provide superior performance and battery protection.

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