BQ24170RGYR

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Texas Instruments’ BQ24170RGYR battery charger is a precision high-density charge control switch IC that offers a power path (charge/discharge) control functionality to manage Li-Ion/Li-Polymer battery charging and system power distribution. This device is mainly classified under PMIC - Battery Chargers and provides precision charging with full system thermal protection. The output voltage of BQ24170RGYR is adjustable between 4.45 V to 6.8 V. An internal boost regulator enables the board to adjust the Vsys voltage during either a discharge or charging cycle. This device offers built-in protection features like Overcurrent protection (OCP), Overvoltage protection (OVP) and Thermal protection (OTP).

BQ24170RGYR can be used in various applications like smart phones, tablet PC, portable media players, digital video cameras, digital still cameras and other high capacity portable applications. This device can also supply a regulated output from whichever state the battery is in, whether it is in discharge or charge mode. It is well suited for multi-chemistry battery charging applications. Its wide voltage range between 4.4 V to 6.8 V support the use of single Li-Ion/Li-Polymer battery charger board for many chemistry types such as Lithium Iron Phosphate (LiFePO4) and Lithium manganese oxide (LiMnO2).

The working principle and operation of the BQ24170RGYR is based on four integrated N-Channel MOSFETs, regulated buck, boost and battery switch. This device delivers a regulated constant current to charge a battery while protecting it against overcurrent, overvoltage and over/under temperature conditions. The integrated buck, boost and battery switches turn off and on the appropriate MOSFETs in order to establish the desired charging mode. The four MOSFETs allow for flexibility in the system design by providing frequency control, voltage and soft start options.

The internal circuitry in BQ24170RGYR is protected against burn-in cycle and reverse current alike. This device also offers a variety of charging algorithms for a variety of applications. These algorithms include pre-charge, fast charge, trickle charge, and other charging methods. The device also offers overvoltage and undervoltage protection to protect a battery from potential damage caused by overcharging.

BQ24170RGYR has a combination of features that enable an optimal charging profile based on battery chemistry to achieve the most efficient, safe and compliant charging. This device can support the latest Fast, Adaptive and USB Type-C™ charging needs including USB Power Delivery (PD) 3.0. The fast charging feature allows for quick and efficient charging of batteries in a limited amount of time. The adaptive charging feature adapts the charge current based on battery voltage level, enabling it to be safely charged at a variety of rates. The USB Type-C™ support makes it easy to integrate into existing solutions.

In conclusion, Texas Instruments’ BQ24170RGYR battery charger is a precision high-density charge control switch IC that is mainly classified under PMIC - Battery Chargers. It offers a power path (charge/discharge) control functionality to manage Li-Ion/Li-Polymer battery charging and system power distribution. It is suitable for various applications like smart phones, tablet PC, portable media players, digital video cameras, digital still cameras and other high capacity portable applications. It also provides built-in protection features like Overcurrent protection (OCP), Overvoltage protection (OVP) and Thermal protection (OTP). Its fast charging, adaptive charging, and USB Type-C™ feature also makes it an attractive choice for precise and efficient charging of different battery chemistries.

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