S-8232AZFT-T2-G

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Pulse Width Modulation (PWM) Current-Mode Controllers, commonly known as PMICs, control the energy delivery to the battery. PMICs are a part of battery management systems and are used in various applications ranging from industrial to consumer electronics. The S-8232AZFT-T2-G PMIC is developed by Texas Instruments and is designed specifically for charging Li-Ion/Li-Polymer batteries, particularly for portable applications. It is a single-cell synchronous Li-Ion / Li-Polymer battery charger which can operate in both linear and pulse charging modes.

Features

The S-8232AZFT-T2-G offers several features that make it highly suitable for battery management in portable devices. It uses a fixed-frequency, current mode architecture for fast transient response. This provides excellent line- and load-transient performance as well as low EMI/RF emissions. The device also supports a wide input voltage range from 5V to 16V, making it suitable for use in a variety of applications.

The S-8232AZFT-T2-G supports multi-level charge termination current along with thermal regulation. The device also features charging current selection options and has an inbuilt internal OR logic to support a simultaneous charging and discharging option. An integrated linear regulator is provided to reduce peak current and give min/max current conditioning capabilities. The device also supports reverse current protection, over-voltage protection, and over-temperature protection.

Application Field and Working Principle

The S-8232AZFT-T2-G PMIC is ideal for use in battery management systems for portable devices such as tablets, laptops, etc. It is a synchronous single-cell charger and can operate in either linear charging mode or in pulse charging mode. In the pulse charging mode, the device operates at a constant frequency and switches the charging current on/off at a rate determined by the user. This switching frequency is typically set between 10kHz and 1MHz. The device also provides several safety features such as over-voltage protection, reverse-current protection, and over-temperature protection.

In the linear charging mode, the device operates at a constant current and operates with a constant input voltage. The rate of charge current is controlled by a reference voltage. This reference voltage is typically set at 0.7 Volts which is bisected between the battery and the charger. The device also provides a trickle charge option to maintain a fully charged battery. This trickle-charge mode is operated at a current level of 10% of the rated charging current.

The S-8232AZFT-T2-G PMIC offers several advantages for battery management in portable applications. These include high efficiency, low standby current, low output noise, fast transient response, low quiescent current, and an integrated linear-regulator to reduce peak currents. The device also supports two feedback circuits which allow the user to select the charging current without having to modify the design of the system. Finally, it has built-in protection features including overvoltage, reverse-current, and over-temperature protection.

Overall, the S-8232AZFT-T2-G PMIC is an ideal device for battery management in portable devices. It is cost-effective, efficient, and offers several features which make it well-suited for use in a wide range of applications. It can operate in both linear and pulse charging modes and also offers protection features to ensure the safety of the user’s device.

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