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NCP1560 Datasheet, PDF (7/18 Pages) ON Semiconductor – Full Featured Voltage Mode PWM Controller
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NCP1560
ELECTRICAL CHARACTERISTICS (Vin = 48 V, VAUX = 12 V, VEA = 2 V, RT = 101 kW, CCSKIP = 6800 pF,
RD = 60.4 kW, RFF = 432 kW, for typical values TJ = 25°C, for min/max values, TJ = -40°C to 125°C, unless otherwise noted)
Characteristic
Symbol Min
Typ
Max
OSCILLATOR
Frequency (RT = 101 kW, Vin = 36 V)
TJ = 25°C
TJ = -40°C to 125°C
Frequency (RT = 59 kW, Vin = 36 V, VEA = 1 V)
TJ = 25°C
TJ = -40°C to 125°C
MAXIMUM DUTY CYCLE COMPARATOR
Maximum Duty Cycle (Vin = 36 V, VEA = 3 V, TJ = 25°C)
RP = 0 W, RMDP = open
RP = open, RMDP = open
Open Circuit Voltage
SOFT START
Charge Current (VSS = 1.0 V)
Discharge Current (VSS = 5.0 V, VUV/OV = 3.7 V)
PWM COMPARATOR
fOSC1
fOSC2
285
300
315
280
-
320
456
480
504
444
-
516
DCMAX
VDCMAX
57
75
0.40
62
80
0.47
66
85
0.60
ISS(C)
ISS(D)
5.0
6.2
7.4
20
52.5
-
Input Resistance (V1 = 1.25 V, V2 = 1.50 V)
RIN(VEA) = (V2 - V1)/(I2 - I1)
Lower Input Threshold
Delay to Output (from VOH to 0.5 VOH)
5.0 V REFERENCE
Output Voltage (IREF = 0 mA)
Load Regulation (IREF = 0 to 6 mA)
Line Regulation (VAUX = 7.5 to 16 V)
CONTROL OUTPUTS
Output Voltage (IOUT = 0 mA)
Low State
High State
Overlap Delay (Vin = 36 V)
RD = 1 MW
Leading
Trailing
RD = 60 kW
Leading
Trailing
RIN(VEA)
8.0
22
60
VEA(L)
0.3
0.7
0.9
tPWM
-
200
-
VREF
4.9
5.0
5.1
VREF(Load)
-
10
50
VREF(Line)
-
50
100
VOL
-
0.25
-
VOH
-
11.8
-
tD
-
200
-
-
170
-
50
90
130
32
72
130
Drive Resistance (Vin = 15 V)
Sink (VEA = 0 V, VOUT = 2 V)
Source (VEA = 3 V, VOUT = 10 V)
Rise Time (CL = 100 pF, 10% to 90% of VOH)
Fall Time (CL = 100 pF, 90% to 10% of VOH)
RSNK
20
40
80
RSRC
50
90
170
ton
-
30
-
toff
-
12
-
Unit
kHz
kHz
%
V
mA
mA
kW
V
ns
V
mV
mV
V
ns
W
ns
ns
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