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AXP152 Datasheet(PDF) 16 Page - List of Unclassifed Manufacturers

Part # AXP152
Description  Enhanced Power Supply IC
PDF  34 Pages
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Manufacturer  ETC2 [List of Unclassifed Manufacturers]
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AXP152 Datasheet(HTML) 16 Page - List of Unclassifed Manufacturers

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Enhanced Power Supply IC
AXP152
4、 负载过大引起电源的输出电压过低,过负载保护(是否自动关机可根据客户需求改写);
5、 IC 温度过高,过温保护;
AXP152 的自动保护机制,可以避免应用系统异常时发生被供电器件的不可逆转损坏,从而保护整个
系统。
休眠和唤醒(Sleep and wakeup)
在开机的情况下,如果系统需要进入
Sleep 模式,并将其中某一路或几路电源输出关闭,则可由
REG31[3] 控制,决定 是否由 LDO0IN low go high IRQ(REG48_[6]) 、 POKNIRQ(REG4A_[5]) 、
POKLIRQ(REG49_[0])或 GPIO0/1/2/3 input edge IRQ(REG4A_[3:0])等触发 wakeup,让 PMU 将各路输出
电源开关状态恢复到
REG31[3]被写’1’前的状态并将电压恢复为默认值,各路被关闭的电源依次按照规定
的上电时序进行恢复。
注意:请确保应用中用于
wakeup 的 IRQ 对应 enable 位为有效,否则将不能唤醒!
如下为
Sleep 和 wakeup 模式下其控制流程。
REG31[3]写 1
打开唤醒功能,
PMU 记录 此时
REG12H 的设置
12H 寄存器,
关闭相应电源
Sleep
并等 待
wakeup 事件发生
唤醒?
各路电源输出使能恢复到
sleep 前的状态,输出电压
恢复至默认输出电压值
Y
N



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