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NCP3011, NCV3011
ELECTRICAL CHARACTERISTICS ( ? 40 ° C < T J < +125 ° C, V CC = 12 V, for min/max values unless otherwise noted)
Characteristic
Input Voltage Range
Conditions
?
Min
4.7
Typ
Max
28
Unit
V
SUPPLY CURRENT
Quiescent Supply Current
V CC Supply Current
V CC Supply Current
EN = 0 V CC = 12 V
V FB = 0.75 V, Switching, V CC = 4.7 V
V FB = 0.75 V, Switching, V CC = 28 V
?
?
?
2.5
5.8
6.0
4.0
8.0
12
mA
mA
mA
UNDER VOLTAGE LOCKOUT
UVLO Rising Threshold
UVLO Falling Threshold
V CC Rising Edge
V CC Falling Edge
3.8
3.6
4.3
4.0
4.7
4.3
V
V
OSCILLATOR
Oscillator Frequency
Ramp ? Amplitude Voltage
Ramp Valley Voltage
T J = +25 ° C, 4.7 V v V CC v 28 V
T J = ? 40 ° C to +125 ° C, 4.7 V v V CC v 28 V
V peak ? V alley
350
330
?
0.44
400
400
1.5
0.7
450
470
?
0.96
kHz
kHz
V
V
PWM
Minimum Duty Cycle
Maximum Duty Cycle
?
80
7
83
?
?
%
%
Soft Start Ramp Time
V FB = V COMP
?
5.2
?
ms
EXTERNAL VOLTAGE REFERENCE
VREF Voltage
VREF Line Regulation
VREF Load Regulation
Short Circuit Output Current
I REF = 1 mA
V CC = 4.7 V ? 28 V
I REF = 0 mA to 1.5 mA
V REF = 0 V
1.14
? 1
? 2
4.5
1.25
?
? 0.2
5.7
1.35
+1
+2
7.0
V
%
%
mA
ENABLE
Enable Threshold High
Enable Threshold Low
Enable Source Current
?
1.0
20
?
?
50
3.4
?
90
V
V
m A
POWER GOOD
Power Good High Threshold
Power Good Low Threshold
Power Good Low Voltage
V CC = 12 V
V CC = 12 V
V CC = 12 V, I PG = 4 mA
0.72
0.65
0.13
0.89
0.71
0.22
1.06
0.75
0.35
V
V
V
SYNC
SYNC Input High Threshold
?
?
2.0
V
SYNC Output High
SYNC Output Low
Phase Delay
SYNC Drive Current (Sourcing)
Master Threshold Current
Master Frequency
10 m A load
(Note 4)
?
?
?
?
5.0
390
5.0
90
200
1.6
14.4
466
?
?
?
?
25
550
V
mV
°
mA
m A
kHz
4.
5.
6.
7.
Guaranteed by design.
The voltage sensed across the high side MOSFET during conduction.
This assumes 100 pF capacitance to ground on the COMP Pin and a typical internal R o of > 10 M W .
This is not a protection feature.
http://onsemi.com
5
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