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NCP348 View Datasheet(PDF) - ON Semiconductor

Part Name
Description
View to exact match
NCP348
Positive Overvoltage Protection Controller with Internal Low RON NMOS FET and Status FLAG
ON-Semiconductor
ON Semiconductor ON-Semiconductor
NCP348 Datasheet PDF : 13 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
NCP348, NCP348AE
Vout = 0
FLAG = Low
Reset Timer
Vin < UVLO or
Vin > OVLO
Vout = 0
FLAG = Low
Timer Count
OVLO > Vin > UVLO
Timer Check
T < 50 ms
T = 50 ms
Reset Timer
Vin < UVLO or
Vin > OVLO
Check Vin
FLAG = Low
Timer Count
Vout = Open
EN = 1
UVLO < Vin < OVLO
Check EN
EN = 0
Vout = Vin
Vin < UVLO or
Vin > OVLO
Timer Check
T = 50 ms
T < 50 ms
UVLO < Vin < OVLO
Check EN
UVLO < Vin < OVLO
EN = 1
EN = 0
Vout = Open
FLAG = High
Check Vin
Vin < UVLO or
Vin > OVLO
Vout = Vin
FLAG = High
Check Vin
Figure 18. State Machine
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