NCP1000P データシートの表示（PDF） - ON Semiconductor
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NCP1000P Datasheet PDF : 14 Pages
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NCP1000, NCP1001, NCP1002
ELECTRICAL CHARACTERISTICS (VCC = 8.6 volts, pin 2 grounded, TJ = 25°C for typical values. For min/max values, TJ is the
operating junction temperature that applies.)
Characteristics
Symbol
Min
Typ
Max
Unit
OSCILLATOR
Frequency (lfb = 1.1 mA) (Note 4) (Figure 7)
TJ = 25°C
TJ = 0°C to 125°C
TJ = −40°C to 125°C
fOSC
PWM COMPARATOR
Feedback Input PWM Gain (TJ = 25°C) (lfb = 1.20 mA to 1.30 mA) (Figure 2)
Av
Gain Temperature Coefficient (TJ = −40°C to TJ = 125°C) (Note 4)
DAv
PWM Duty Cycle (Pin 2)
Maximum (lfb = 0.8 mA)
Zero Duty Cycle Current
D(max)
Ifb
PWM Ramp
Peak
Valley
Vrpk
Vrvly
STARTUP CONTROL AND VCC LIMITER
Undervoltage Lockout (Figure 8)
VCC Clamp Voltage (ICC = 4.0 mA)
Startup Threshold (Vclp Increasing)
Minimum Operating Voltage After Turn−On
Hysteresis
Vclp
Vclp(on)
Vclp(min)
VH
Startup Circuit, Pin 1 Output Current (Pin 4 = 50 V)
Istart
VCC = 0 V
VCC = 8.0 V
Minimum Startup Voltage (VCC = Vclp(on) −0.2 V, Istart = 0.5 mA)
Vstart
Auto Restart (CPin 1 = 47 mF, Pin 4 = 50 V) (Note 5)
Duty Cycle
Drst
Frequency
frst
Startup Circuit Breakdown Voltage (I = 25 mA) (Note 5)
VBR(st)
Startup Circuit Leakage Current (Pin 4 = 700 VDC)
Ileak
TJ = 25°C
TJ = −40°C to 125°C
3. Maximum package power dissipation limits must be observed.
4. Tested junction temperature range for this device series: Tlow = −40°C, Thigh = +125°C
5. Guaranteed by design only.
kHz
90
100
110
85
−
115
75
−
115
−110
−
*136
0.2
−170
%/mA
− (%/mA)/°C
68
72
74
%
1.8
−
−
mA
V
−
4.1
−
−
2.7
−
V
8.3
8.55
8.9
8.2
8.5
8.8
7.2
7.5
8.0
−
1.0
−
mA
2.0
3.4
4.2
1.5
2.6
4.2
−
14.7
20
V
4.0
5.0
6.0
%
−
1.2
−
Hz
700
−
−
V
mA
−
20
40
−
30
75
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