High Efficiency Synchronous Rectified Portable Battery Charger and Management System CXLB74132 is power management solution for portable battery charger system. The device contains a full-featured

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    CXLB74132 is power management solution for portable battery charger system. The device contains a full-featured battery charger with up to 3A charge current, a 3.1A output and battery protection functions.  Charge mode: The charger can be powered from 5V wall adaptor with ±10% variation whereas over voltage lock out protects internal circuit during voltage surge.  The device automatically turns-off charging and bypassing function when input voltage exceeds 6.1V, and can sustain up to 10V continuous input voltage with charging and bypassing function in OFF status. The device has a preset battery float voltage of 4.2V/4.35V programmable by external resistor with ±1% accuracy at room temperature. The integrated charger minimizes the charger’s physical footprint, maximizes charge efficiency, which reduces the power dissipation during charge. Discharge mode: The system power the output with 3.1A capacity.  In both charge and discharge mode, PFM is engaged to maintain high efficiency at light load. CXLB74132 guarantee robustness with short-circuit protection, thermal protection, and input under and over voltage lockout. They are available in a 24-pin FCQFN4X4 package with exposed pad for low thermal resistance. 

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Complete 5V portable battery charger system with integrated power FET and smart charge/discharge mode control IOa嘉泰姆

Supports Battery Charging Specification 1.2 charging port types of Dedicated Charging Ports (DCP) IOa嘉泰姆

Supports Chinese Communications Industry Standard YD/T 1591-2009
Auto detect and charge for Apple, Samsung, BC1.2 compliant devices IOa嘉泰姆

Sustain up to 10V with charging and bypassing function in OFF status
12V input instantaneous withstand voltage IOa嘉泰姆

Charge termination and auto-recharge IOa嘉泰姆

Ideal diode to minimize voltage drop IOa嘉泰姆

Low quiescent current IOa嘉泰姆

Selectable 4.2V/4.35V battery voltage with ±1% accuracy IOa嘉泰姆

Up to 3A charge current IOa嘉泰姆

3.1A output current limit IOa嘉泰姆

93% charge peak efficiency IOa嘉泰姆

97% discharge peak efficiency IOa嘉泰姆

Automatic load detection IOa嘉泰姆

NTC function for battery thermal protection IOa嘉泰姆

Battery over charge and over discharge protection IOa嘉泰姆

Safety timer to prevent prolonged charging IOa嘉泰姆

Thermal and short circuit protectionIOa嘉泰姆

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Portable battery charger systemIOa嘉泰姆

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