AP9101CK6-CFTRG1

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PMIC - Battery Management typically combines a range of components and features such as voltage regulation, charge controllers, over-voltage protection, over-current protection, ESD protection, temperature monitoring, short circuit protection and battery diagnostics. AP9101CK6-CFTRG1 from Diodes Incorporated is a linear Lithium-Ion battery charger/Load Switch, specifically designed for 3s/4salkaline/NiMH/NI-Cd cell packs or 2s/3s lithium-ion cell packs. This charger provides up to 2A charge current and features a wide range of protections for safe charging. In this article, we will discuss the working principle and application fields of the AP9101CK6-CFTRG1.

Overview of AP9101CK6-CFTRG1

The AP9101CK6-CFTRG1 is a linear Lithium-Ion battery charger designed for 3s/4salkaline/NiMH/NI-Cd cell packs or 2s/3s lithium-ion cell packs. It is a monolithic integrated circuit with high precision current limit and thermal shutdown. The charger provides up to 2A charge current and features a wide range of protections for safe charging.

The charger can be powered from wall adapter or USB port and provides an output to drive a parallel load. It features low current consumption, low noise and high efficiency. The device can be set to constant current (CC) in order to charge 2S/3S/4S battery packs. The integrated under voltage lock out (UVLO) will prevent the device from running if there is not enough input voltage. It also features over voltage protection (OVP) and reverse current flow protection (RFP) as well.

Other features include temperature monitoring using an optional temperature sensor, and temperature compensation to ensure safety during charging. The integrated control IC enables to use the device in a wide variety of applications needing regulated output supply. In 5V applications, the device can provide up to 4A output current.

Working Principle of AP9101CK6-CFTRG1

The AP9101CK6-CFTRG1 linear charger works in two stages: charging and idle. In the charging stage, the charger will draw current from the input and supply it to the battery while monitoring its charge level using the integrated current limit protection. It will then proceed to the idle stage when it has achieved the desired voltage limit. In the idle stage, the charge current will be reduced to a low level as the battery is full.

The charger is designed to provide constant current (CC) charge control, meaning that during the charging stage, the charger will draw a constant current from the input source and provide it to the battery. As the charge nears completion, the charge current will be reduced. This ensures that the battery is always charged at the lowest possible rate and protects it from overcharging.

The AP9101CK6-CFTRG1 also features over voltage protection (OVP) and reverse current flow protection (RFP) to protect the battery from voltage spikes and current reversal. It also contains temperature monitoring for improved safety and performance. The integrated control IC enables to use the device in a wide range of applications needing regulated output supply.

Application Fields of AP9101CK6-CFTRG1

The AP9101CK6-CFTRG1 is designed for 3s/4s alkaline/NiMH/NI-Cd cell packs and 2s/3s lithium-ion cell packs and is suitable for a wide range of applications requiring a high current regulated output; including portable medical devices, communications devices, portable consumer electronics, and automotive systems.

Additionally, the AP9101CK6-CFTRG1 can be used to support low quiescent current, high efficient power supply design. This makes it an ideal solution for self-powered devices, such as remote devices powered by batteries. With its wide input voltage range, it can be used as a universal power supply for applications that require low voltage and/or 3.3V or 5V outputs. The device is also suitable for industrial, power tool, and hobby applications.

The AP9101CK6-CFTRG1 is an efficient linear lithium-ion charger with a wide range of protective and safety features, making it an ideal choice for a wide range of battery-powered applications. It offers great features at a very competitive price, making it one of the most cost-effective solutions for battery charging and power supply design.

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