S-8215AAA-I8T1U

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The S-8215AAA-I8T1U is a power management integrated circuit (PMIC) of the battery management family. It is designed to manage the power state of single-cell lithium-ion (Li-ion) and lithium-polymer (Li-poly) batteries used in mobile phones and other electronic devices. This PMIC enables an efficient, yet safe operation of the batteries, thus maximizing battery life and enabling fast charging capabilities.

The S-8215AAA-I8T1U is an ideal choice for designing power systems for mobile phones, wearables, and other portable electronic devices. It combines a wide range of features and components in a small package. The PMIC provides a versatile power supply circuit, including charge pump and switch mode buck regulator. It also facilitates the monitoring of battery voltage and current, temperature, and aging state. Furthermore, the PMIC has active charge termination circuitry to stop further charging when the battery has been fully charged, as well as a low-battery protection circuit that prevents usage at voltage levels too low for safe operation.

To enable higher efficiency and longer run time, the PMIC also includes several power saving functions. This includes a built-in low-dropout regulator that reduces the quiescent current consumption by up to 90%, as well as an advanced programmable power control function that allows for customized battery charging profiles and tailoring of current consumption levels.

The S-8215AAA-I8T1U is designed to use either a 2.5V or 3.2V reference voltage to set the output voltage. It also features two low-dropout regulators (LDOs) with adjustable output voltage. The first LDO operates in PWM mode, while the second LDO is configured as a voltage follower or LD driver. In addition, the PMIC has two analog input pins that allow the user to adjust the reference voltage and the output voltage.

As far as safety features go, the S-8215AAA-I8T1U includes an over-voltage protection circuit, over-temperature protection circuit, and a reverse battery protection circuit. It also integrates a timer circuit for time-controlled charging and an active deep discharge protection circuit to prevent drain current from draining past a safe threshold.

With its flexibility and range of features, the S-8215AAA-I8T1U is ideal for a variety of battery management applications, such as for mobile phones, tablets, medical devices, wearables, power banks, and more.

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