NCP1282 Ver la hoja de datos (PDF) - ON Semiconductor
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NCP1282 Datasheet PDF : 23 Pages
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NCP1282
ELECTRICAL CHARACTERISTICS (continued) (Vin = 48 V, VAUX = 12 V, VUVOV = 2.3 V, VEA = open, VCSKIP = 0 V,
VCS = 0 V, VSS = open, RT = 13.7 kW, CAUX = 10 mF, CT = 470 pF, Cout1 = Cout2 = 100 pF, CUVOV = 0.01 mF, CCSKIP = 6800 pF,
RD = 25 kW, RSYNC = 5.0 kW, CREF = 0.1 mF, RFF = 29.4 kW, CFF = 470 pF. For typical values TJ = 25°C, for min/max values, TJ is – 40°C to
125°C, unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
SYNCHRONIZATION
Output Pulse Width
Output Voltage High (RSYNC = R)
Sync Threshold Voltage (Note 5)
Sync Input Pulse Width (VSYNC = 3.5 V)
Maximum Sync Frequency (Note 5)
Source Current (Note 5)
SOFT−START/STOP
tO(SYNC)
70
122
−
ns
VH(SYNC)
–
4.3
–
V
VSYNC
3.5
–
–
V
tSYNC
−
–
tO(SYNC)min
ns
fSYNC
–
–
1.0
MHz
ISYNC(D)
–
1.0
–
mA
Charge Current (VSS = 1.6 V)
Discharge Current (VUVOV = 0 V, VSS = 1.6 V)
Soft−Stop Reset Voltage (VFF = 0 V)
OUTPUTS
ISS(C)
15
20
30
mA
ISS(D)
70
100
130
mA
Vreset(SS)
–
115
−
mV
Overlap Time Delay (Tested at 50% of Waveform)
RD = 25 kW
Leading
Trailing
Output Voltage (IOUT = 0 mA, Note 5)
Low State
High State
Drive Resistance (FT ONLY)
OUT1 Sink (VRTCT = 4.0 V, Vout1 = 1 V)
TJ = 25°C
TJ = –40°C to 125°C
OUT1 Source (VRTCT = 2.5 V, Vout1 = 11 V)
TJ = 25°C
TJ = –40°C to 125°C
OUT2 Sink (VRTCT = 4.0 V, Vout2 = 1 V)
TJ = 25°C
TJ = –40°C to 125°C
OUT2 Source (VRTCT = 2.5 V, Vout2 = 11 V)
TJ = 25°C
TJ = –40°C to 125°C
Rise Time (10% to 90%, Cout1 = 2200 pF, Cout2 = 220 pF)
OUT1
OUT2
Fall Time (90% to 10%, Cout1 = 2200 pF, Cout2 = 220 pF)
OUT1
OUT2
PWM COMPARATOR
ns
tD(leading)
37
53
−
tD(trailing)
72
99
−
V
VOL
–
–
0.25
VOH
11.8
–
–
RSNK1
RSRC1
RSNK2
RSRC2
W
–
2.9
3.6
–
–
5.03
–
4.6
5.75
–
–
7.45
–
11.6
12.7
–
–
20.0
–
11.8
13.5
–
–
20
ns
tr1
–
26
–
tr2
–
19
–
ns
tf1
–
10
–
tf2
–
10
–
Input Resistance
Lower Input Threshold
Delay to Output (From VOH to 0.5 VOH)
5. Guaranteed by design only.
RIN(VEA)
14
26
50
kW
VEA(L)
0.48
0.84
1.04
V
tPWM
–
100
–
ns
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