UC知道帮忙翻译一段技术资料 谢谢
来源：百度知道 编辑：UC知道 时间：2024/06/20 04:35:12
Autonomous power source selection, mode control pin
With the MODE input low, the bq24070 defaults to USB-mode charging, and the supply current is limited by the ISET2 pin (100 mA for ISET2=Low, 500mA for ISET2=High). If an input source is not available, then the battery is selected as the source.
Boot-up sequence
In order to facilitate the system start-up and USB enumeration, the bq2070 offers a proprietary boot-up sequence. On the first application of power to the bq24070, this feature enables the 100-mA USB charge rate for a period of approximately 150ms, (t(BOOT-UP)), ignoring the ISET2 and CE inputs setting. At the end of this period, the bq24070 implements CE and ISET2 inputs settings.
With the MODE input low, the bq24070 defaults to USB-mode charging, and the supply current is limited by the ISET2 pin (100 mA for ISET2=Low, 500mA for ISET2=High). If an input source is not available, then the battery is selected as the source.
Boot-up sequence
In order to facilitate the system start-up and USB enumeration, the bq2070 offers a proprietary boot-up sequence. On the first application of power to the bq24070, this feature enables the 100-mA USB charge rate for a period of approximately 150ms, (t(BOOT-UP)), ignoring the ISET2 and CE inputs setting. At the end of this period, the bq24070 implements CE and ISET2 inputs settings.
自励电源的选择，方式控制销柱
由于“方式”输入值低 ， bq24070 不介入到USB-方式的充电，而电源电流受到ISET2 销的限制（对ISET2 ， 100毫安=低， 对ISET2 ， 500毫安= 高）。如果输入电源不具备，则选择电池做电源。
启动程序
为了便于系统的启动和USB的运算，bq 24070 提供适合的启动程序。在初次对bq20470加载时，这一特性能够以大约150 毫秒的周期T，100毫安的速度加载（启动），否定ISET2和CE输入设定值。在该周期末点，bq20470 执行CE 和 ISET2 的输入设定职。
自治电源选择，方式控制别针
With方式输入的低落， bq24070默认为充电的USB方式，并且供应潮流由ISET2别针(ISET2=Low， 500mA的100 mA限制ISET2=High的)。 如果输入源不是可利用的，则电池被选择作为来源。
Boot-up序列
为了促进系统启动和USB列举， bq2070提供一个私有的起动序列。 在第一功率应用对bq24070的，这个特点使能100mA USB充电率大约150ms的期间， (t (BOOT-UP))忽略ISET2和铈输入设置。 在这个期间的结尾， bq24070实施铈和ISET2输入设置