APM8600FB-7 Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	1
Current - Charging:	Constant - Programmable
Programmable Features:	Current, Timer
Fault Protection:	Over Temperature, Over Voltage
Charge Current - Max:	1A
Battery Pack Voltage:	4.2V
Voltage - Supply (Max):	7V
Interface:	--
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	14-UFDFN Exposed Pad
Supplier Device Package:	14-UDFN3030 (3x3)
Base Part Number:	APM8600

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Introduction

PMIC, or power management integrated circuits, is a specialized integrated circuit that helps to manage and optimize the power requirement of components and systems. PMICs are commonly used in embedded systems and battery powered devices. One of the most popular PMICs is a battery charger, which helps to maintain adequate amounts of power and extend battery life. The APM8600FB-7 is a popular PMIC battery charger designed for embedded applications. In this article, we\'ll discuss the application fields and working principles of the APM8600FB-7.

Application Field of the APM8600FB-7

The APM8600FB-7 is a multifunctional PMIC designed for embedded applications that require high efficiency with low power consumption. Its features include a Li-Ion/Li-Poly battery charger, power distribution, voltage supervision, temperature measurement, real-time clock, and multiple low-power modes. Its on-chip charger supports a wide input voltage range of 2.7V to 24V, and an adaptive charge current of 5 mA to 2500 mA.In addition, the APM8600FB-7 contains a power distribution path that allows for monitoring of 3.3/1.8V and 5.0/3.3V power supplies and provides power fail warning. This device also comes with a temperature measurement circuit and real-time clock circuit, making it ideal for applications such as medical, smart home and automotive. The APM8600FB-7 can be used in a variety of embedded applications such as hand-held devices, labels, and cameras.

Working Principle of the APM8600FB-7

The APM8600FB-7 is based on a charge-pump controller, which is used to efficiently convert a given input voltage to the desired output voltage. The primary power source connected to the APM8600FB-7 is usually a lithium-ion battery, although it can also work with other battery types.The power-management circuitry of the APM8600FB-7 uses a 4-step process to ensure efficient and reliable charging. The first step is called prefilling, during which a trickle charge is sent to the battery to mitigate internal voltage drops. The second step is the constant current charging mode, in which the voltage and current are balanced to deliver the best-possible charge. The third step is the switch-mode, in which the current is switched on and off to provide a constant voltage. Finally, the fourth step, or topping-off, ensures that the battery is fully charged, while the built-in low-power and fail-safe circuit prevents overcharging.The APM8600FB-7 is capable of providing a variety of power modes, such as low quiescent current circuit, low current detection, and wake-up load control. In addition, the device offers a variety of protection features such as overvoltage protection, short circuit protection, overcharge protection, and undervoltage protection.

Conclusion

The APM8600FB-7 is a highly efficient and reliable PMIC battery charger designed for embedded applications. It offers a wide range of features including Li-Ion/Li-Poly charging, power distribution, voltage supervision, temperature measurement, and real-time clock. It also offers a variety of power-management features such as low quiescent current circuit, low current detection, and wake-up load control. Its 4-step charging process ensures efficient and reliable charging of lithium-ion batteries, while its built-in protection features prevent battery overcharging, short circuits, and overvoltage conditions.

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