NCP349 ON Semiconductor, NCP349 Datasheet - Page 5
NCP349
Manufacturer Part Number
NCP349
Description
Positive Overvoltage Protection Controller With Internal Low Ron Nmos Fet
Manufacturer
ON Semiconductor
Datasheet
1.NCP349.pdf
(12 pages)
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Part Number
Manufacturer
Quantity
Price
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Part Number:
NCP349MNBGTBG
Manufacturer:
ON Semiconductor
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Manufacturer:
ON Semiconductor
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V
FLAG
V
V
in
in
out
− (R
EN
V
FLAG
out
DS(on)
Figure 5. Disable on EN = 1
I)
0.3 V
UVLO
t
on
Figure 3. Startup
1.2 V
t
dis
t
start
0.3 V
1.2 V
V
<OVLO
in
− (R
DS(on)
TIMING DIAGRAMS
http://onsemi.com
I)
5
Figure 4. Shutdown on Overvoltage Detection
V
in
EN
V
FLAG
FLAG
V
V
in
− (R
out
in
Figure 6. FLAG Response with EN = 1
DS(on)
OVLO
I)
t
stop
1.2 V
t
off
0.4 V
0.3 V
OVLO
UVLO
t
on
+ t
start