BQ25971YFFR

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

BQ25971YFFR is one of the most powerful separate-pack battery chargers on the market today, offering comprehensive charging capabilities for a wide range of portable device applications. It offers a two-step constant current-constant voltage (CC-CV) charging regime, maximizes charge acceptance from a wide and varying range of battery technologies and has advanced temperature monitoring and charging control capabilities. This makes it particularly suitable for applications such as consumer handhelds, cell phones and other portable multimedia applications in consumer and industrial applications.

To understand the field of application, it is important to understand the working principle of BQ25971YFFR. This device is designed with two power transistors, one is an NMOS topology with a drain connected to an output of the device, and one is a PMOS, with a source connected to the output. When a high voltage is applied to the drain of the NMOS transistor, current is drawn out of the device, resulting in a decrease in output voltage, and when a high voltage is applied to the source of the PMOS transistor, current is drawn into the device to increase output voltage.

The output of BQ25971YFFR is enabled by a two-phase, constant current-constant voltage, charging regime. Specifically, it enables fast charging with a 1C current rate and constant-voltage mode that provides trickle charging to keep the battery at full capacity. It also features a battery temperature monitoring circuit and powerful charge acceptance control capabilities to ensure optimal charging times and battery longevity. With these features combined, designs that incorporate BQ25971YFFR can provide enhanced charging performance and longer battery life to meet the demanding requirements of portable and mobile applications.

BQ25971YFFR offers a highly efficient and reliable solution for battery applications. It supports up to four channels, each of which can be individually configured for optimal performance and flexibility. Furthermore, it utilizes a proprietary “low-dropout” (LDO) topology to maximize power and current efficiency, minimize power losses and provide excellent thermal stability.

In addition, it offers a built-in power path management circuit to route battery power to a dedicated load and maximize charge acceptance from main and/or USB sources. This safeguards the battery from over-current, over-voltage and automatically balances the negative and positive lines during charge/discharge operations.

In sum, BQ25971YFFR is a highly efficient and reliable PMIC – Battery Charger solution for portable and mobile applications. It features a two-step constant current-constant voltage charging regime, advanced temperature monitoring and charging control capabilities, as well as built-in power path management capability to ensure optimal performance, battery longevity and safety.

The specific data is subject to PDF, and the above content is for reference