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NCP348, NCP348AE
ELECTRICAL CHARACTERISTICS (Min/Max limits values ( ? 40 ° C < T A < +85 ° C) and V in = +5.0 V. Typical values are T A = +25 ° C,
unless otherwise noted.)
Characteristic
Input Voltage Range
Undervoltage Lockout Threshold (Note 4)
Undervoltage Lockout Hysteresis
Overvoltage Lockout Threshold (Note 4)
NCP348MTT
Symbol
V in
UVLO
UVLO hyst
OVLO
Conditions
?
?
?
V in rises up OVLO threshold
Min
1.2
3.0
20
6.0
Typ
?
3.25
50
6.4
Max
28
3.5
100
6.8
Unit
V
V
mV
V
NCP348AEMTT
5.7
6.02
6.4
Overvoltage Lockout Hysteresis
NCP348MTT
OVLO hyst
?
50
100
150
mV
NCP348AEMTT
30
60
90
V in versus V out Resistance
Supply Quiescent Current
UVLO Supply Current
FLAG Output Low Voltage
FLAG Leakage Current
EN Voltage High
EN Voltage Low
EN Leakage Current
R DS(on)
Idd
Idd uvlo
Vol flag
FLAG leak
Vih
Vol
EN leak
V in = 5.0 V, EN = GND,
Load connected to V out
No load. EN = 5.0 V
No load. EN = Gnd
V IN = 2.9 V
1.2 V < V IN < UVLO
Sink 50 m A on/FLAG pin
V IN > OVLO
Sink 1.0 mA on FLAG pin
FLAG level = 5.0 V
?
?
EN = 5.0 V or GND
?
?
?
?
?
?
?
1.2
?
?
65
90
170
70
20
?
1.0
?
?
1.0
120
150
250
100
400
400
?
?
0.4
?
m W
m A
m A
m A
mV
mV
nA
V
V
nA
TIMINGS
Startup Delay
FLAG Going Up Delay
Output Turn Off Time
ton
tstart
toff
From V in : (0 to (OVLO ? 300 mV)
< V in < OVLO) to V out = 0.3 V
Rise time<4 m s (See Figures 3 & 7)
From V out = 0.3 V to FLAG = 1.2 V
(See Figures 3 & 9)
From V in > OVLO to V out < = 0.3 V
(See Figures 4 & 8)
30
30
?
55
50
1.5
70
70
5.0
ms
ms
m s
V in increasing from 5.0 V to 8.0 V at
3.0 V/ m s, Rload connected on V out
Alert Delay
tstop
From V in > OVLO to FLAG < = 0.4 V
(See Figures 4 & 10)
?
1.0
?
m s
V in increasing from 5.0 V to 8.0 V at
3.0 V/ m s, Rload connected on V out
Disable Time
tdis
From EN > = 1.2 V to V out < 0.3 V
Rload = 5.0 W
(See Figures 5 & 12)
?
1.0
5.0
m s
NOTE:
Electrical parameters are guaranteed by correlation across the full range of temperature.
4. Additional UVLO and OVLO thresholds ranging from UVLO and from OVLO can be manufactured. Contact your ON Semiconductor
representative for availability.
http://onsemi.com
4
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