AP9101CK-AHTRG1

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Function:	Battery Protection
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	1
Fault Protection:	Over Current, Over Voltage
Interface:	--
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	SC-74A, SOT-753
Supplier Device Package:	SOT-25

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Introduction

The AP9101CK-AHTRG1 combines a battery management controller with a power management integrated circuit (PMIC) and is used in a variety of applications. It is capable of managing multiple cells with a maximum of four individually addressed batteries. It is suitable for many types of Li-ion and Li-polymer batteries. This battery management chip is especially suited for high-capacity, long-life applications such as industrial drones, consumer robotics and medical equipment.This article will explain the application field and working principle of the AP9101CK-AHTRG1.

Application Field

The AP9101CK-AHTRG1 is designed for applications requiring reliable and accurate cell monitoring, charge and discharge protection, and efficient power management. It is suitable for single-cell, two-cell and four-cell battery packs and is capable of controlling a battery voltage range of 3.2V-44V.The AP9101CK-AHTRG1 has three power connection modes: linear battery connection, parallel battery connection and combination of linear and parallel battery connection. The battery connection mode can be chosen according to the application structure and the type of battery.The cell configuration can be selected among different cell models, such as LiFePO4 or Li-ion. The AP9101CK-AHTRG1 offers five protection modes, including under-voltage, over-voltage, over-temperature, discharge over current and reset supervision to ensure the reliability of the system and the battery life. The AP9101CK-AHTRG1 also features power management functions such as cell balancing, LED blinking indicator and boost charging. These functions are essential for maximizing the performance and safety of the system.

Working Principle

The AP9101CK-AHTRG1 is a fully programmable system for battery monitoring, protecting, charging and discharging. It consists of a PMIC, a pulse width modulation (PWM) control circuit, a switch mode buck controller, a sampling module and several analog comparator circuits.The PMIC is responsible for the supply voltage conditioning and regulation, power delivery and system integration. It manages power control of the system, including all type of voltage regulators, buck and boost converters, as well as charging and discharging at optimal efficiency.The PWM control circuit is used to drive the switch mode buck controller. The circuit takes an analog input, converts it into a digital signal, and outputs a PWM signal to the buck controller. The buck controller is responsible for converting the input voltage to the required output voltage by using pulse width modulation. The sampling module is used to optimize the power delivery and monitor the battery voltage. The module consists of several analog-to-digital converters (ADCs) and comparator circuits. The ADCs collect data from the battery and transmit it to the controller. The comparator circuits compare the data with a reference voltage and take appropriate actions depending on the results.The AP9101CK-AHTRG1 also has an integrated EEPROM memory for storing data such as the battery configuration parameters and other settings.

Conclusion

The AP9101CK-AHTRG1 is a versatile battery management and power management integrated circuit (PMIC). It is specially designed for high-capacity, long-life applications such as drones, robotics and medical equipment. It offers a variety of features, including cell monitoring, charge and discharge protection, power management, cell balancing and LED blinking indicator. The AP9101CK-AHTRG1 also has an integrated EEPROM memory for storing data such as the battery configuration parameters and other settings. Its power connection and battery connection modes are configurable and its cell configuration can be selected according to the battery type and application structure.

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