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PMIC - Battery Management

S-8232AUFT-T2-G application field and working principle

S-8232AUFT-T2-G is a high-efficiency power management integrated circuit (PMIC) designed for battery management and fast charging applications, which allows reliable and accurate monitoring of input and output voltages with the fast charging or system parameters. It is the go-to PMIC for standalone battery management or fast charging solutions.

Application Field:

The S-8232AUFT-T2-G is well suited to a variety of applications, such as:

• Portable/handheld/wearable devices
• Smart Home Appliances
• IoT applications.

It is capable of charging single-cell lithium-ion/lithium-polymer (LI-Po) batteries, as well as NiCd and NiMH batteries, and provides fault warning for over-voltage, short-circuit and thermal protection.

Working Principle:

The S-8232AUFT-T2-G is a two-dimensional charge controller device that comprises two parts: An input side and an output side. The input side is responsible for providing the system with an adjustable voltage from the input source, and the output side is responsible for providing a stable voltage for driving the battery.

In the input side, it uses a control circuit with a switching regulator to control the charging voltage and current. This switch is driven by a PWM (Pulse Width Modulation) signal. The duty cycle of the PWM signal is adjusted so that the desired average output voltage is maintained. The output voltage is monitored and controlled by a voltage divider on the output side.

The output side also has a power-over-voltage protector circuit. This circuit monitors the output voltage and shuts down the charging circuit if the output voltage exceeds the pre-set voltage. Additionally, the temperature of the battery is also monitored by a temperature sensor. The thermal protection can be configured by the user.

In addition to providing the charging functions, the S-8232AUFT-T2-G also provides LED indicators that indicate the status of the power, battery and charging. It also has a connector interface that allows the connection of a USB port or other connections. This allows easy connection of any external devices that requires monitoring of the charging and/or output voltages.

Conclusion:

In conclusion, the S-8232AUFT-T2-G is an ideal PMIC for battery management applications. It provides an adjustable output voltage and current, and can monitor and protect the battery from over-voltage, short-circuit and thermal conditions. Moreover, the inclusion of LED indicators further increases its ease of use. With its versatile features and application scope, it is sure to be a valuable addition to any device.

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