HT46R47 Application Lithium Battery Charger Demonstration Board The disadvantage of lithium-ion batteries is that they have strict requirements on chargers and require protection circuits. Lithium-ion batteries require constant current and constant voltage charging. In order to effectively utilize the battery capacity, lithium-ion batteries need to be charged to the maximum voltage, but over-voltage charging will cause battery damage, which requires higher control accuracy. In addition, batteries with too low voltage need to be pre-charged. The charger is best equipped with thermal protection and time protection to provide additional protection for the battery. It can be seen that achieving safe and efficient charging control has become a bottleneck in the promotion and application of lithium-ion batteries. In view of these application characteristics, Holtek Semiconductor has released a microcontroller designed specifically for rechargeable battery chargers. The product number is HT46R47. For the current nickel-cadmium, nickel-metal hydride and lithium rechargeable batteries on the market or general Walkman, PDA and other battery-using products, this product can be used to develop a fast charger for the rechargeable battery.
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