NCP1603
http://onsemi.com
7
ELECTRICAL CHARACTERISTICS (For typical values T
J
 = 25癈, for min/max values, T
J
 = 40癈 to +125癈, V
CC2
 = 13 V,
HV = 30 V, V
CC1
 = 15 V, V
control
 = 100 nF, Ramp = 330 pF, Osc = 220 pF unless otherwise specified).
Characteristic (PFC Section)
Pin
Symbol
Min
Typ
Max
Unit
PWM SUPPLY SECTION
Supply Voltage
Startup Threshold, V
CC2
 Increasing
Minimum Operating Valley Voltage after TurnOn
Undervoltage Lockout Threshold Voltage, V
CC2
 Decreasing
Logic Reset Level
14
V
CC2(on)
V
CC2(off)
V
CC2(latch)
V
CC2(reset)
11.6
7.0
5.0

12.6
7.7
5.6
4.0
13.6
8.4
6.2

V
V
V
V
Supply Current
Operating (V
CC2
 = 13 V, Out2 = Open, V
FB2
 = 2.0 V)
Operating (V
CC2
 = 13 V, Out2 = 1.0 nF to GND2, V
FB2
 = 2.0 V)
LatchOff Phase (V
CC2
 = 6.5 V, V
FB2
 = 2.0 V)
14
I
CC2(op1)
I
CC2(op2)
I
CC2(latch)
0.6
1.3
400
1.1
2.2
680
1.8
3.0
1000
mA
mA
mA
PFC OSCILLATOR
Oscillator Frequency (Osc = 220 pF to GND)
5
f
osc1
52
58
64
kHz
Internal Capacitance of the Oscillator Pin
5
C
osc(int)

36

pF
Maximum Oscillator Switching Frequency
5
f
osc1(max)

405

kHz
Oscillator Discharge Current (Osc = 5.5 V)
5
I
odch
40
49
60
mA
Oscillator Charge Current (Osc = 3.0 V)
5
I
och
40
45
60
mA
Comparator Lower Threshold (Osc = 220 pF to GND) (Note 5)
5
V
sync(L)
3.0
3.5
4.0
V
Comparator Upper Threshold (Osc = 220 pF to GND)
5
V
sync(H)
4.5
5.0
5.5
V
Synchronization Pulse Width for Detection
5
t
sync(min)
500


ns
Synchronization Propagation Delay
5
t
sync(d)

371

ns
PFC GATE DRIVE
Gate Drive Resistor
Output High and Draw 100 mA out of Out1 Pin
(I
source
 = 100 mA)
Output Low and Insert 100 mA into Out1 Pin
(I
sink
 = 100 mA)
7
R
OH1
R
OL1
5.0
2.0
11.6
7.2
20
18
W
W
Gate Drive Rise Time from 1.5 V to 13.5 V
(Out1 = 1.0 nF to GND)
7
t
r1

53

ns
Gate Drive Fall Time from 13.5 V to 1.5 V
(Out1 = 1.0 nF to GND)
7
t
f1

32

ns
PFC FEEDBACK/OVERVOLTAGE PROTECTION/UNDERVOLTAGE PROTECTION
Reference Current
9
I
ref
192
203
208
mA
Regulation Block Ratio
9
I
regL
/I
ref
95
96
97
%
Vcontrol Pin Internal Resistor
10
R
control

300

kW
Maximum Control Voltage (I
FB1
 = 100 mA)
10
V
control(max)
0.95
1.05
1.15
V
Feedback Pin Voltage (I
FB1
 = 100 mA)
9
V
FB1100

3.0

V
Overvoltage Protection Current Ratio
9
I
OVP
/I
ref
104
107

%
Overvoltage Protection Current Threshold
9
I
OVP

217
225
mA
Undervoltage Protection Current Threshold
9
I
UVP
/I
ref
4.0
8.0
15
%
5.  Comparator lower threshold is also the synchronization threshold.
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