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NCP1562A Datasheet(PDF) 6 Page - ON Semiconductor

Part No. NCP1562A
Description  High Performance Active Clamp/Reset PWM Controller
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCP1562A Datasheet(HTML) 6 Page - ON Semiconductor

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NCP1562A, NCP1562B
http://onsemi.com
6
ELECTRICAL CHARACTERISTICS (Vin =48V,VAUX =12V,VUVOV =2.3 V, VEA = open, VCSKIP =0V, VCS =0V, VSS = open,
RT = 13.3 kΩ,CAUX =10 mF, CT = 470 pF, Cout1 =Cout2 = 100 pF, CUVOV =0.01 mF, CCSKIP = 6800 pF, RD =25kΩ,RSYNC =5.0 kΩ,
CREF =0.1 mF, RFF = 29.4 kΩ,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
STARTUP CONTROL AND VAUX REGULATOR
VAUX Regulation (VUVOV =0V)
Inhibit Threshold Voltage
Startup Threshold/VAUX Regulation Peak (VAUX Increasing)
Operating VAUX Valley Voltage
Minimum Operating VAUX Valley Voltage after Turn--On
(VUVOV =2.3 V, VEA =0V)
Vinhibit
VAUX(on)
VAUX(off1)
VAUX(off2)
9.65
7.42
6.50
1.15
10.3
8.0
7.0
1.5
10.97
8.48
7.42
V
Minimum Startup Voltage (Pin 1)
IAUX =1.0 mA,VAUX =VAUX(on) –0.2 V
Vstart(min)
23.2
V
Inhibit Bias Current
VAUX =0V
Iinhibit
70
170
300
mA
Startup Circuit Output Current
VAUX =Vinhibit +0.2 V
VAUX =VAUX(on) –0.2 V
Istart1
Istart2
7.16
4.03
9.3
6.1
11.3
8.1
mA
Startup Circuit Off--State Leakage Current (Vin = 200 V, VUVOV =0V)
TJ =25_C
TJ = –40_C to 125_C
Istart(off)
25
50
100
mA
Startup Circuit Breakdown Voltage (Note 3)
Istart(off) =50 mA, TJ = 125_C
VBR(DS)
100
V
Auxiliary Supply Current after VAUX Turn--On
Outputs Disabled
VUVOV =0V
VEA =0V
Outputs Enabled
VEA =4.0 V
IAUX1
IAUX2
IAUX3
3.0
4.2
5.5
3.6
4.94
7.0
mA
LINE UNDER/OVERVOLTAGE DETECTOR
Undervoltage Threshold (Vin Increasing)
VUV
1.979
2.05
2.116
V
Undervoltage Hysteresis
VUV(H)
0.074
0.093
0.118
V
Undervoltage Ratio (VUV(H)/VUV)
VUV(ratio)
3.65
4.50
5.62
%
Overvoltage Threshold (Vin Increasing)
VOV
2.80
2.95
3.10
V
Overvoltage Hysteresis
VOV(H)
0.075
0.093
0.127
V
Offset Current (VUVOV =2.8 V)
Ioffset(UVOV)
38
48
58
mA
Offset Current Turn ON Threshold (5%, Ioffset(UVOV) =40 mA)
Voffset(UVOV)
2.4
2.6
2.8
V
LINE FEEDFORWARD
Peak Voltage (Volt--Second Clamp)
VFF(peak)
2.8
3.0
3.2
V
Discharge Current (VFF =0.5 V, VSS =0V)
IFF(D)
8.5
mA
Offset Voltage (VFF = 0 V, Ramp Down VSS)
Voffset(FF)
0.118
0.185
0.268
V
Feedforward Offset Minus Soft--Stop Reset Voltage
Δ(FF--SS)
7
70
183
mV
3. Guaranteed by design only.


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