S-8253CAH-T8T1GZ Integrated Circuits (ICs)

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The S-8253CAH-T8T1GZ is a PMIC (Power Management Integrated Circuit) specifically designed for battery management. It is a cost-effective 4-channel bq25120-based, 5-cell lithium-ion/polymer charger IC, which offers various safety protection and advanced charging capabilities. This PMIC is used in applications such as device battery charging and balancing, and more.

The S-8253CAH-T8T1GZ incorporates intelligent peripherals with onboard power-saving circuitry, allowing it to be used in portable, battery powered devices where power savings is critical. These inclusions make it suitable for multi-cell battery packs used in portable medical and industrial equipment, as well as handheld devices. The S-8253CAH-T8T1GZ generates over-voltage and over-current protection to protect the system from harm, and provides excellent thermal dissipation.

By integrating a variety of features in a single package, the S-8253CAH-T8T1GZ offers greater efficiency for battery management in portable and embedded applications. Its features include integrated charge current protection, charge level indicator, and pre-regulation output with 0.5 V precision. The S-8253CAH-T8T1GZ also provides low power mode and automatic changeover between charging mode and battery side control.

The S-8253CAH-T8T1GZ\'s working principle is based on a switched capacitor step-up topology. It is designed to support charging of lithium-ion and lithium-polymer cells, as well as other applications. The chip incorporates an ISET pin, which is primarily used to set the charge current based on the charge rate of the cell. This pin also serves as an input for a push button control system, allowing the user to select up to five different charge rates.

In order to maximize efficiency and minimize power consumption, the S-8253CAH-T8T1GZ features an onboard power saving circuit that includes several active elements. This includes an input voltage supervisor, a power converter, an over voltage protection circuit, an energy storage capacitor and an output voltage regulator.

The S-8253CAH-T8T1GZ also provides an array of safety features. This includes the over voltage protection circuit, which monitors battery voltage and cuts off the charging when the cell is overcharged. It also provides short circuit protection, which shuts off the charging when the battery current exceeds the set limit. Apart from that, it also safeguards the battery against over-discharging with its low voltage protection circuit.

In addition, the S-8253CAH-T8T1GZ features an automatic charge rate detection circuit and a preset alarm timer which controls the charging system according to the programmed charger rate. Furthermore, it also provides advanced temperature monitoring which ensures safe charging in hot and cold conditions.

The S-8253CAH-T8T1GZ is designed to continuously monitor the voltage of each battery cell, measure the temperature and adjust the charging current accordingly. This allows it to offer a higher level of precision in the charging system and maximize its performance. The chip also features thermal protection, and limits the charging current to prevent over-heating.

The S-8253CAH-T8T1GZ is an ideal solution for managing battery packs used in portable medical and industrial devices, battery powered vehicle applications and more. Its advanced features and safety protections make it suited for system designers and engineers looking for reliable and efficient battery management.

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