LM3420AM5X-12.6

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PMIC - Battery Charger is a monitoring device that manages and safeguards the process of charging and discharging of a battery. In particular, it provides a power regulation system in order to control the power flow that is passed within the battery to ensure that it can sustain an optimal charging level so as to maximize its longevity. The LM3420AM5X-12.6, from Texas Instruments Inc., is a high-performance switching battery charger that is specifically designed for rechargeable single or dual cell Lithium-Ion (Li-Ion) and Lithium Iron Phosphate (LiFePO4) batteries. The LM3420AM5X-12.6 is capable of providing a constant current, constant voltage (CC/CV) power regulation system in order to reduce the charge time of a battery while also extending its running time. It makes use of an internal linear regulator and its integrated low-battery detection (LBD) feature in order to provide the highest quality protection against under and over-voltage battery protection. The LM3420AM5X-12.6 is offered in a 5 mm x 5 mm quad flat no leads-6 (QFN6) package. It operates within an Input Voltage range of 3.3 to 9.0 VDC and a Maximum Output Current of 1650 mA for a single cell battery and 800 mA for a dual cell battery. Its built-in switching frequency of up to 1.5 MHz allows for a small-sized inductor and capacitors, thereby allowing for a significantly reduced board space compared to traditional battery chargers. The LM3420AM5X-12.6 application includes a power regulation system for portable devices such as smartphones, tablets, and laptops, as well as industrial and medical devices. This device is capable of providing a battery charge that is both accurate and reliable and when combined with a protection circuit and a system controller, the device is capable of providing a complete battery charging solution. The working principle of the LM3420AM5X-12.6 is primarily based on a constant voltage and current regulation system. When the output voltage of the electrical device is plugged into the LM3420AM5X-12.6, it automatically detects the charging parameters of the battery and determines how much power is needed to be supplied in order to charge the battery. The LM3420AM5X-12.6 is designed to provide a constant current, constant voltage (CC/CV) charge profile which at a pre-determined voltage will begin to automatically adjust the current output so that the battery can safely charge. Once the charging has reached a required capacity or the battery reaches its maximum voltage level, the LM3420AM5X-12.6 stops supplying power to the battery in order to avoid overcharging. At lower battery levels, it is capable of undertaking a trickle charge in order to subject the battery to asafe charging current in order to prevent further deterioration of the battery and reduce the amount of time it takes to fully charge it.The LM3420AM5X-12.6 benefits from Texas Instruments Inc. resonant half-bridge (RHB) topology as it can be enabled to automatically switch between a discontinuous conduction mode (DCM) and a continuous conduction mode (CCM) so that the device can operate with a significantly higher efficiency. Apart from that, the LM3420AM5X-12.6 features thermal shutdown, over-voltage protection, current-limit protection, and detection of a dead battery. This single-loop charge management system provides users with excellent protection during the operation of the device, guaranteeing that the battery can be safely and effectively recharged with the utmost reliability.

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