AP9214L-AJ-HSB-7

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Introduction

The AP9214L-AJ-HSB-7 is a power management integrated circuit (PMIC) in the Battery Management product line by Apex. This particular IC can be used to provide the power management and monitoring needed to ensure a safe and reliable operation of modern battery systems. Specifically, the AP9214L-AJ-HSB-7 is a voltage regulator and battery charging controller for lithium-ion cells.

Application Field of AP9214L-AJ-HSB-7

The AP9214L-AJ-HSB-7 is designed primarily for use in lithium-ion battery systems. It is suitable for both consumer and industrial applications, such as smartphones, tablets, powerbanks, medical equipment, home appliances, industrial batteries, and other IoT devices. The device also offers higher integration, low quiescent current, and current sources for external circuits. With a wide input range of 4-24V, the AP9214L-AJ-HSB-7 can accommodate cells of various sizes, including 5S1P, 4S2P and 11S4P configurations.

AP9214L-AJ-HSB-7 provides a total of 4 channels for voltage regulation and up to 10 A charging currents. Its integrated FETs have a low RDS(on) value, allowing the device to efficiently deliver a high current with minimal power loss in the circuit. The integrated FETs also feature thermal shutdown protection, which can prevent the device from overheating when faced with extreme conditions.

Working Principle of AP9214L-AJ-HSB-7

AP9214L-AJ-HSB-7 uses a multi-state battery charging algorithm to regulate the charging of lithium-ion cells. It features 4 charging states, which are Pre-Charge, Fast Charge, Stimulation Charge and Maintenance Charge. In the Pre-Charge mode, the voltage of the cells is brought up to a safe level. Fast Charge mode is used to quickly charge the cells up to a specific 9 volt target. Stimulation Charge mode is used to quickly adjust the voltage levels of the cells, while the Maintenance Charge mode gradually maintains the cells at their target level.

The AP9214L-AJ-HSB-7 also features an array of safety features, such as overvoltage protection, reverse current protection, temperature monitoring, and overcharge protection. These features ensure that the cells in the system are not damaged due to any excessive current or voltage. The device also features a variety of on-chip monitoring features, such as short circuit and overvoltage detection, current and voltage measurement, and open circuit detection.

Conclusion

The AP9214L-AJ-HSB-7 is a PMIC in the Battery Management product line by Apex. It is designed to provide power management and monitoring for lithium-ion cells in both consumer and industrial applications. AP9214L-AJ-HSB-7 features a multi-state battery charging algorithm, an array of safety features and on-chip monitoring for a reliable operation of batteries systems. With its wide input range and high power outputs, the AP9214L-AJ-HSB-7 is an ideal choice for battery management applications.

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