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AS1301A-BTDT 参数 Datasheet PDF下载

AS1301A-BTDT图片预览
型号: AS1301A-BTDT
PDF下载: 下载PDF文件 查看货源
内容描述: 5V / 50毫安低噪音无电感升压转换器 [5V/50mA Low Noise Inductorless Boost Converter]
分类和应用: 转换器升压转换器
文件页数/大小: 16 页 / 1060 K
品牌: AMSCO [ AMS(艾迈斯) ]
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AS1301  
Data Sheet - Detailed Description  
Overload Protection  
When the output voltage drops about 200mV below battery voltage due to very high load the AS1301 enters overload  
protection condition. In this condition the output is connected to the input via a current limiting connection. Once the  
overload is removed, the device enters soft start periode and ramps up to the nominal output voltage.  
Undervoltage Lockout  
The AS1301 is equipped with an undervoltage lockout functionality. If the battery voltage drops below 2.7V (typ) the  
device enters the undervoltage lockout condition. The device remains in this condition until the battery voltage is high  
enough to enter the soft start period. An internal hysteresis of 100mV will prevent ringing during startup. If the input  
voltage climbs back to 2.8V (typ) after such a condition the device will turn-on automatically again.  
Shutdown Mode  
The AS1301 enters low-power shutdown mode when EN is logic low. In shutdown the charge-pump action is halted,  
the output is completely disconnected from the input and VOUT will drop to 0V. During shutdown the output voltage can  
be forced higher then the input voltage, because the permanent monitoring of the input- and output voltage will prevent  
an erroneous current form the output back to the input during shutdown.  
Thermal Shutdown  
The AS1301 offers thermal shutdown, which prevents eventual damage due to an over-temperature condition.  
Thermal shutdown will be initiated if the junction temperature exceeds 145°C. If the temperature drops below this  
value, the thermal shutdown will be released automatically and the device will resume operation.  
www.austriamicrosystems.com  
Revision 1.00  
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