NCP1218 Просмотр технического описания (PDF) - ON Semiconductor
Номер в каталоге
Компоненты Описание
производитель
NCP1218 Datasheet PDF : 20 Pages
| |||
NCP1218
Table 3. ELECTRICAL CHARACTERISTICS (VHV = 60 V, VCC = 11.3 V, VFB = 2 V, VSkip/latch = 0 V, VCS = 0 V, VDRV = open, CCC =
0.1 mF, for typical values TJ = 25°C, for min/max values, TJ is –40°C to 125°C, unless otherwise noted)
Characteristics
Conditions
Symbol
Min
Typ Max Unit
STARTUP AND SUPPLY CIRCUITS
Supply Voltage
Startup Threshold
Minimum Operating Voltage
Undervoltage Lockout
Double Hiccup Threshold
Logic Reset Voltage
UVLO Filter Delay
Inhibit Threshold Voltage
Inhibit Bias Current
Minimum Startup Voltage
Startup Current
Startup Circuit Reverse Current
Off−State Leakage Current
Breakdown Voltage (Note 5)
Supply Current
Device Disabled/Fault
Device Enabled/No Switching
Device Switching
VCC Increasing
VCC Decreasing
VCC Decreasing
VCC Decreasing
VCC Decreasing
Iinhibit = 500 mA
VCC = 0 V
Istart = 0.5 mA, VCC = VCC(on) – 0.5 V
VCC = VCC (on) – 0.5 V
VHV = 0 V, VCC = 14 V
VHV = 500 V, VCC = 14 V
IHV = 50 mA
VSkip/latch = 5.2 V, VFB = open
VSkip/latch = open, VFB = 0 V
VSkip/latch = open, CDRV = 1000 pF
VCC(on)
VCC(MIN)
UVLO
VCC(hiccup)
VCC(reset)
tUVLO(delay)
Vinhibit
Iinhibit
Vstart(min)
Istart
IHV(reverse)
IHV(off)
VBR(DS)
ICC1
ICC2
ICC3
V
11.2
12.7 13.8
9.0
9.9
10.8
8.4
9.4
10.6
4.9
5.7
6.3
–
4.0
–
–
50
–
ms
0.35
0.67 0.90
V
100
200
350
mA
–
20
28
V
5.5
12.8 18.5 mA
–
–
100 mA
–
12
50
mA
500
–
–
V
mA
–
0.6
0.8
–
1.4
2.1
–
2.2
2.7
CURRENT SENSE
Current Sense Voltage Threshold
Leading Edge Blanking Duration
Propagation Delay
Ramp Compensation Peak Current
Ramp Compensation Valley Current
FEEDBACK INPUT
Apply voltage step on CS pin
VCS > VILIM to 50% DRV turns off,
CDRV = 1000 pF
VILIM
tLEB
tdelay
Iramp(peak)
Iramp(valley)
0.95
1.0
1.05
V
100
184
330
ns
–
59
150
ns
–
100
–
mA
–
0
–
mA
Open Feedback Voltage
Internal Pull−up Resistance
Feedback Pull−up Current
Feedback to Current Set Point Ratio
SOFT−START
VFB = 0 V
VFB(open)
RFB
IFB
Iratio
3.2
3.6
3.9
V
–
16.7
–
kW
141
280
392
mA
–
3.0
–
Soft−Start Period
OSCILLATOR
Measured at 0.9 VILIM
tSSTART
–
4.8
–
ms
Oscillator Frequency
Frequency Modulation in
Percentage of fOSC
TJ = 25_C
TJ = −40_C to 85_C
TJ = −40_C to 125_C
fOSC
61.75
58
55
65 68.25 kHz
–
71
–
71
–
±11
–
%
Frequency Modulation Period
–
11.5
–
ms
Maximum Duty Ratio
D
75
80
85
%
5. Guaranteed by the IHV(off) test.
http://onsemi.com
6
Share Link: 