×

BQ24153A,pdf(Fully Integrated Switch Mode One Cell Li-Ion Ch

消耗积分:5 | 格式:rar | 大小:2071 | 2010-11-09

分享资料个

The bq24153A/6A/8 is a compact, flexible, high-efficiency, USB-friendly switch-mode charge management device
for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications. The charge
parameters can be programmed through an I2C interface. The IC integrates a synchronous PWM controller,
power MOSFETs, input current sensing, high-accuracy current and voltage regulation, and charge termination,
into a small WCSP package.
The IC charges the battery in three phases: conditioning, constant current and constant voltage. The input
current is automatically limited to the value set by the host. Charge is terminated based on battery voltage and
user-selectable minimum current level. A safety timer with reset control provides a safety backup for I2C
interface. During normal operation, The IC automatically restarts the charge cycle if the battery voltage falls
below an internal threshold and automatically enters sleep mode or high impedance mode when the input supply
is removed. The charge status can be reported to the host using the I2C interface. During the charging process,
the IC monitors its junction temperature (TJ) and reduces the charge current once TJ increases to about 125°C.
To support USB OTG device, bq24153A/8 can provide VBUS (5.05V) by boosting the battery voltage. The IC is
available in 20-pin WCSP package.

声明:本文内容及配图由入驻作者撰写或者入驻合作网站授权转载。文章观点仅代表作者本人,不代表电子发烧友网立场。文章及其配图仅供工程师学习之用,如有内容侵权或者其他违规问题,请联系本站处理。 举报投诉

评论(0)
发评论

下载排行榜

全部0条评论

快来发表一下你的评论吧 !