參數(shù)資料
型號(hào): NCP348AE
廠(chǎng)商: ON SEMICONDUCTOR
英文描述: Positive Overvoltage Protection Controller with Internal Low RON NMOS FET and Status FLAG(具有內(nèi)部低Ron NMOS FET和狀態(tài)標(biāo)志位的正電壓過(guò)壓保護(hù)控制器)
中文描述: 積極過(guò)壓保護(hù)控制器,內(nèi)置低辛烷值NMOS管FET和狀態(tài)標(biāo)志(具有內(nèi)部低羅恩NMOS管場(chǎng)效應(yīng)管和狀態(tài)標(biāo)志位的正電壓過(guò)壓保護(hù)控制器)
文件頁(yè)數(shù): 8/13頁(yè)
文件大?。?/td> 280K
代理商: NCP348AE
NCP348, NCP348AE
http://onsemi.com
8
VOLTAGE DETECTION
IN
OUT
CONDITIONS
V
IN
> OVLO
0 < V
IN
< UVLO
And/Or
/EN = 1
VOLTAGE DETECTION
IN
OUT
CONDITIONS
/EN = 0
&
UVLO < V
IN
< OVLO
Figure 16. Simplified Diagram
Figure 17. Simplified Diagram
Operation
The NCP348 provides overvoltage protection for
positive voltage, up to 28 V. A Low R
DS(on)
NMOS FET
protects the systems (i.e.: charger) connected on the Vout
pin, against positive overvoltage. At powerup, with
EN
pin
= low, the output is rising up 50 ms after the input
overtaking undervoltage UVLO (Figure 3). The NCP348
provides a
FLAG
output, which alerts the system that a fault
has occurred. A 50 ms additional delay, regarding
available output (Figure 3) is added between output signal
rising up and to
FLAG
signal rising up.
FLAG
pin is an open
drain output.
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