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NCP348 데이터시트(PDF) 4 Page - ON Semiconductor

부품명 NCP348
상세설명  Positive Overvoltage Protection Controller with Internal Low R_ON NMOS FET and Status FLAG
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제조업체  ONSEMI [ON Semiconductor]
홈페이지  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCP348 데이터시트(HTML) 4 Page - ON Semiconductor

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NCP348
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4
ELECTRICAL CHARACTERISTICS (Min/Max limits values (−40
°C < TA < +85°C) and Vin = +5.0 V. Typical values are TA = +25°C,
unless otherwise noted.)
Characteristic
Symbol
Conditions
Min
Typ
Max
Unit
Input Voltage Range
Vin
1.2
28
V
Undervoltage Lockout Threshold (Note 4)
UVLO
3.00
3.25
3.5
V
Undervoltage Lockout Hysteresis
UVLOhyst
20
50
100
mV
Overvoltage Lockout Threshold (Note 4)
OVLO
Vin rises up OVLO threshold
6.00
6.4
6.8
V
Overvoltage Lockout Hysteresis
OVLOhyst
50
100
150
mV
Vin versus Vout Resistance
RDS(on)
Vin = 5.0 V, EN = GND,
Load connected to Vout
65
120
m
W
Disable Quiescent Current
Idddis
Vin = 5.0 V, EN = 1.2 V,
Load connected to Vout
6.0
20
mA
Supply Quiescent Current
Idd
No load. EN = 5.0 V
90
150
mA
No load. EN = Gnd
170
250
mA
UVLO Supply Current
Idduvlo
VIN = 2.9 V
70
100
mA
FLAG Output Low Voltage
Volflag
1.2 V < VIN < UVLO
Sink 50
mA on/FLAG pin
20
400
mV
VIN > OVLO
Sink 1.0 mA on FLAG pin
400
mV
FLAG Leakage Current
FLAGleak
FLAG level = 5.0 V
1.0
nA
EN Voltage High
Vih
1.2
V
EN Voltage Low
Vol
0.4
V
EN Leakage Current
ENleak
EN = 5.0 V or GND
1.0
nA
TIMINGS
Startup Delay
ton
From Vin > UVLO to Vout =
0.3 V (See Figures 3 & 7)
30
55
70
ms
FLAG Going Up Delay
tstart
From Vout = 0.3 V to FLAG =
1.2 V (See Figures 3 & 9)
30
50
70
ms
Output Turn Off Time
toff
From Vin > OVLO to Vout < =
0.3 V (See Figures 4 & 8)
Vin increasing from 5.0 V to
8.0 V at 3.0 V/
ms
Rload connected on Vout
1.5
5.0
ms
Alert Delay
tstop
From Vin > OVLO to FLAG < =
0.4 V (See Figures 4 & 10)
Vin increasing from 5.0 V to
8.0 V at 3.0 V/
ms
Rload connected on Vout
1.0
ms
Disable Time
tdis
From EN > = 1.2 V to
Vout < 0.3 V
Rload = 5.0
W
(See Figures 5 & 12)
1.0
5.0
ms
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.


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