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NCL30051
Table 4. ELECTRICAL CHARACTERISTICS (V HV = open, V PFB = 2.4 V, V PCS = 0 V, V PZCD = 5 V, V PControl = open, V CC = 15 V,
V PDRV = open, V HDRVlo = open, V HVS = 0 V, V HDRVhi = open, V HBoost = 15 V, C OSC = 2200 pF, C VREF = 0.1 m F, C PCT = 1000 pF, for typical
values T J = 25 ° C, for min/max values, T J is ? 40 ° C to 125 ° C, unless otherwise noted)
Characteristics
Conditions
Symbol
Min
Typ
Max
Unit
PFC CURRENT SENSE
Current Sense Threshold Voltage
V PCS(ILIM)
0.78
0.84
0.92
V
Current Sense Input Bias Current
Leading Edge Blanking Duration
Propagation Delay
V PCS = 2 V
V PCS = V PCS(ILIM) + 1 V
I PCS
t PCS(LEB)
t PCS(delay)
? 1
40
–
0
110
90
1
200
250
m A
ns
ns
PFC ZERO CURRENT DETECTION
ZCD Threshold Voltage
Arming Threshold
Trigger Threshold
ZCD Voltage Hysteresis
ZCD Input Bias Current
V PZCD increasing
V PZCD decreasing
V PZCD = 1 V
V PZCD = 5 V
V ZCD(high)
V ZCD(low)
V ZCD(HYS)
I PZCD(bias1)
I PZCD(bias2)
1.9
1.3
400
? 1
? 1
2.1
1.5
600
–
–
2.3
1.7
800
1
1
V
mV
m A
PFC MAXIMUM OFF TIME
Maximum Off Time
t PFC(off)
50
180
350
m s
PFC ON TIME RAMP GENERATOR
ON time Capacitor Charge Current
On Time Capacitor Discharge Time
ON Time Capacitor Peak Voltage
Minimum Duty Ratio
Maximum On Time Detect Delay
Voltage Delta between PControl Voltage
Needed to Generate PDRV Pulses and
V EA(OL)
V PCT = 0 V
V PCT = 2.4 V to 0.6 V
V PFB = 3.0 V, V PZCD = 0 V
V PCT = V PCT(peak) + 1 V
D V EA ? V PCT(peak)
I PCT(C)
t PCT(D)
V PCT(peak)
D PMIN
t PCT(delay)
V PCT(offset)
220
–
2.6
0
–
250
270
70
3.0
–
250
400
300
300
3.4
–
375
550
m A
ns
V
%
ns
mV
PFC OVERVOLTAGE and UNDERVOLTAGE
Overvoltage Detector Threshold Voltage
Overvoltage Comparator Hysteresis Win-
dow
Propagation Delay
Undervoltage Detector Threshold Voltage
Undervoltage Comparator Hysteresis
Midpoint between high and low
threshold, V PControl = 4 V
V PControl = 4V
V PFB = V PREF + 1 V
V PFB increasing
V PFB decreasing
V PFB increasing
V POVP
V POVP(HYS)
t POVP(delay)
V PUVP(high)
V PUVP(low)
V PUVP(HYS)
1.03*
V PREF
5
–
?
175
20
1.05*
V PREF
30
400
290
230
60
1.07*
V PREF
60
800
350
?
100
V
mV
ns
mV
mV
PFC DRIVER
PFC Driver Rise Time
PFC Driver Fall Time
PFC Driver High State Voltage
PFC Driver Low State Voltage
10% to 90% (Note 4)
90% to 10% (Note 4)
I PDRV = ? 8 mA
I PDRV = 8 mA
t PDRV(rise)
t PDRV(fall)
V PDRV(OH)
V PDRV(OL)
?
?
14.00
?
18
9
14.55
0.12
?
?
?
0.50
ns
ns
V
V
4. Resistor/capacitor parallel combination (39 pF || 20 k W ) between PDRV and driver supply and between PDRV and GND pins.
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