NCV4949A 데이터 시트보기 (PDF) - ON Semiconductor
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NCV4949A Datasheet PDF : 11 Pages
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NCV4949A
ELECTRICAL CHARACTERISTICS (continued) (VCC = 14 V, −40°C < TA < 125°C, unless otherwise specified.)
Characteristic
Symbol
Min
Typ
Iout = 100 mA
Input to Output Voltage Difference in Undervoltage Condition
(VCC = 4.0 V, Iout = 35 mA)
Line Regulation (6.0 V < VCC < 28 V, Iout = 1.0 mA)
Load Regulation (1.0 mA < Iout < 100 mA)
Current Limit
Vout = 4.5 V
Vout = 0 V
Quiescent Current (Iout = 0.3 mA, TA < 100°C)
Quiescent Current (Iout = 100 mA)
RESET
−
0.3
VIO
−
0.2
Regline
−
1.0
Regload
−
8.0
ILim
105
200
−
100
IQSE
IQ
−
150
−
−
Reset Threshold Voltage
Reset Threshold Hysteresis
@ TA = 25°C
@ TA = −40 to +125°C
Reset Pulse Delay (CT = 100 nF, tR ≥ 100 ms)
Reset Reaction Time (CT = 100 nF)
Reset Output Low Voltage (RReset = 10 kW to Vout, VCC ≥ 3.0 V)
Reset Output High Leakage Current (VReset = 5.0 V)
Delay Comparator Threshold
Delay Comparator Threshold Hysteresis
SENSE
VResth
−
4.5
VResth,hys
50
100
50
−
tResD
55
100
tResR
−
5.0
VResL
−
−
IResH
−
−
VCTth
−
2.0
VCTth, hys
−
100
Sense Low Threshold (VSI Decreasing = 1.5 V to 1.0 V)
Sense Threshold Hysteresis
Sense Output Low Voltage (VSI ≤ 1.16 V, VCC ≥ 3.0 V, RSO = 10 kW to Vout)
Sense Output Leakage (VSO = 5.0 V, VSI ≥ 1.5 V)
Sense Input Current
PREREGULATOR
VSOth
VSOth,hys
VSOL
ISOH
ISI
1.16
20
−
−
−1.0
1.23
100
−
−
0.1
Preregulator Output Voltage (IZ = 10 mA)
VZ
−
6.3
Max
0.50
0.4
20
30
400
−
260
5.0
−
200
300
180
30
0.4
1.0
−
−
1.35
200
0.4
1.0
1.0
−
Unit
V
mV
mV
mA
mA
mA
V
mV
ms
ms
V
mA
V
mV
V
mV
V
mA
mA
V
PIN FUNCTION DESCRIPTION
Pin
SO−8, SO−8 EP
Pin
SO−20 W
1
19
2
20
3
1
4
2
5
4−7, 14−17
6
10
7
11
8
12
−
3, 8, 9, 13, 18
Symbol
VCC
Si
VZ
CT
GND
Reset
SO
Vout
NC
Description
Supply Voltage
Input of Sense Comparator
Output of Preregulator
Reset Delay Capacitor
Ground
Output of Reset Comparator
Output of Sense Comparator
Main Regulator Output
No Connect
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