ncp3030a ON Semiconductor, ncp3030a Datasheet - Page 4

• Manufacturer Part Number: ncp3030a
• Description: Ncp3030a, Ncp3030b Synchronous Pwm Controller
• Manufacturer: ON Semiconductor

ELECTRICAL CHARACTERISTICS (
SUPPLY CURRENT
UNDER VOLTAGE LOCKOUT
OSCILLATOR
PWM
ERROR AMPLIFIER (GM)
OUTPUT VOLTAGE FAULTS
OVERCURRENT
5. Guaranteed by design.
6. The voltage sensed across the high side MOSFET during conduction.
7. This assumes 100 pF capacitance to ground on the COMP Pin and a typical internal R
8. This is not a protection feature.
Input Voltage Range
V
V
UVLO Rising Threshold
UVLO Falling Threshold
Oscillator Frequency
Oscillator Frequency
Ramp−Amplitude Voltage
Ramp Valley Voltage
Minimum Duty Cycle
Maximum Duty Cycle
Soft Start Ramp Time
Transconductance
Open Loop dc Gain
Output Source Current
Output Sink Current
FB Input Bias Current
Feedback Voltage
COMP High Voltage
COMP Low Voltage
Feedback OOV Threshold
Feedback OUV Threshold
ISET Source Current
Current Limit Set Voltage (Note 6)
CC
CC
Supply Current
Supply Current
Characteristic
NCP3030B
NCP3030B
NCP3030A
NCP3030B
NCP3030A
NCP3030B
NCP3030A
NCP3030A
T
T
−40°C < T
J
J
4.7 V < V
= −40°C to +125°C, 4.7 V v V
= −40°C to +125°C, 4.7 V v V
V
V
V
V
T
T
FB
FB
FB
FB
J
J
= +25°C, 4.7 V v V
= +25°C, 4.7 V v V
= 0.8 V, Switching, V
= 0.8 V, Switching, V
= 0.8 V, Switching, V
= 0.8 V, Switching, V
CK
V
J
< +125°C, V
peak
V
V
< 28 V, −40°C < T
R
(Notes 5 and 7)
CC
V
V
CC
V
V
V
SET
Conditions
http://onsemi.com
FB
FB
FB
TJ = 25 C
FB
FB
− V
(Note 5)
Falling Edge
Rising Edge
= 745 mV
= 855 mV
= V
= 22.1 kW
= 0.75 V
= 0.85 V
alley
−
COMP
CC
(Note 5)
4
= 12 V, for min/max values unless otherwise noted)
CC
CC
CC
CC
CC
CC
v 28 V
v 28 V
J
= 4.7 V
= 4.7 V
= 24 V
= 24 V
< +125°C
CC
CC
v 28 V
v 28 V
o
of > 10 MW.
0.792
0.788
1050
2100
1900
0.44
0.55
Min
960
140
4.7
4.0
3.5
0.9
4.0
0.9
7.0
70
65
45
45
−
−
−
−
−
−
−
−
−
−
−
1200
1200
2400
2400
12.7
10.3
17.4
0.70
0.59
Typ
240
8.3
4.3
3.9
1.5
7.0
1.8
1.3
1.4
0.5
0.8
0.8
4.4
1.0
84
80
70
75
75
72
13
0.808
0.812
1350
1440
2700
2900
Max
0.96
0.65
100
100
500
250
360
4.7
4.3
1.9
5.0
1.1
28
18
−
−
−
−
−
−
−
−
−
−
−
Unit
kHz
kHz
kHz
kHz
mA
mA
mA
mA
mS
mV
mV
ms
dB
mA
mA
nA
mA
%
%
V
V
V
V
V
V
V
V
V
V