NCP1271(2006) Просмотр технического описания (PDF) - ON Semiconductor
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Компоненты Описание
производитель
NCP1271
(Rev.:2006)
(Rev.:2006)
ON Semiconductor
NCP1271 Datasheet PDF : 19 Pages
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NCP1271
ELECTRICAL CHARACTERISTICS (continued) (For typical values TJ = 25°C, for min/max values, TJ = −40°C to +125°C,
VCC = 14 V, HV = open, skip = open, FB = 2 V, CS = Ground, DRV = 1 nF, unless otherwise noted.)
Characteristic
Pin
Symbol
Min
Typ Max Unit
STARTUP CURRENT SOURCE
High−Voltage Current Source
Inhibit Voltage (ICC = 200 mA, HV = 50 V)
Inhibit Current (VCC = 0 V, HV = 50 V)
Startup (VCC = VCC(on) − 0.2 V, HV = 50 V)
Leakage (VCC = 14 V, HV = 500 V)
Minimum Startup Voltage (VCC = VCC(on) – 0.2 V, ICC = 0.5 mA)
SUPPLY SECTION
VCC Regulation
Startup Threshold, VCC Increasing
Minimum Operating Voltage After Turn−On
VCC Operating Hysteresis
Undervoltage Lockout Threshold Voltage, VCC Decreasing
Logic Reset Level (VCC(latch) –VCC(reset) > 1.0 V) (Note 7)
VCC Supply Current
Operating (VCC = 14 V, 1.0 nF Load, VFB = 2.0 V, 65 kHz Version)
Operating (VCC = 14 V, 1.0 nF Load, VFB = 2.0 V, 100 kHz Version)
Output Stays Low (VCC = 14 V, VFB = 0 V)
Latchoff Phase (VCC = 7.0 V, VFB = 2.0 V)
7. Guaranteed by design.
6
Vinhibit
190
600
800 mV
6
Iinhibit
80
200 350 mA
6
IHV
3.0
4.1
6.0 mA
8
IHV−leak
10
25
50
mA
8
VHV(min)
−
20
28
V
6
VCC(on)
11.2 12.6 13.8
V
VCC(off)
8.2
9.1
10
V
VCC(on) − VCC(off)
3.0
3.6
4.2
V
VCC(latch)
5.0
5.8
6.5
V
VCC(reset)
−
4.0
−
V
6
ICC1
ICC1
ICC2
ICC3
−
2.3
3.0 mA
−
3.1
3.5 mA
−
1.3
2.0 mA
−
500 720 mA
TYPICAL CHARACTERISTICS
110
100
100 kHz
90
80
70
65 kHz
60
50
−50 −25 0
25 50 75 100 125
TEMPERATURE (°C)
Figure 3. Oscillation Frequency vs.
Temperature
85
84
83
82
81
80
79
78
77
76
75
−50
−25 0
25 50 75 100 125
TEMPERATURE (°C)
Figure 4. Maximum Duty Cycle vs.
Temperature
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