NCP1205(2002) 查看數據表（PDF） - ON Semiconductor
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NCP1205
(Rev.:2002)
(Rev.:2002)
ON Semiconductor
NCP1205 Datasheet PDF : 20 Pages
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NCP1205
ELECTRICAL CHARACTERISTICS (continued) (For typical values TA = 25°C, for min/max values TJ = 25°C to +125°C,
Max TJ = 150°C, VCC = 12 V unless otherwise noted.)
Pin No.
Characteristics
DIP8 DIP14 Symbol
Min
Typ
Max Unit
Current Sense Comparator (continued)
Propagation Delay from Current Detection to Gate OFF
State
6
11
Tdel
–
200
250
ns
Leading Edge Blanking (LEB)
Frequency Modulator
Minimum Frequency Operation @ Ct = 1.0 ηF and
VCC = 35 V
Maximum Frequency Operation @ Ct = 1.0 ηF and
VCC = 35 V
Minimum Ct Charging Current (Note 3)
Maximum Ct Charging Current (Note 3)
Discharge Time @ Ct = 1.0 ηF
6
11
Tleb
–
200
–
ns
4
5
Fmin
–
0
–
kHz
4
5
Fmax
90
110
125
kHz
4
5
ICtmin
–
0
–
µA
4
5
ICtmax
280
350
420
µA
4
5
–
–
500
–
ns
Drive Output
Output Voltage Rise Time @ CL = 1.0 ηF (DV = 10 V)
Output Voltage Fall Time @ CL = 1.0 ηF (DV = 10 V)
Clamped Output Voltage @ VCC = 35 V (Note 4)
Voltage Drop on the Stage @ VCC = 10 V (Note 4)
Undervoltage Lockout
Startup Threshold (VCC Increasing)
Minimum Operating Voltage (VCC Decreasing)
Startup Current Source
Maximum Voltage, Pin 1 Grounded
Maximum Voltage, Pin 1 Decoupled (470 µF)
Startup Current Source Flowing through Pin 1
7
12
tr
–
7
12
tf
–
7
12
VDRV
11
12
12
VDRV
–
30
50
ns
30
50
ns
13
16
V
–
0.5
V
8
13
UVLOH
13.5
15
16.5
V
8
13
UVLOL
6.5
7.2
8.0
V
1
1
–
–
450
–
V
1
1
–
–
500
–
V
1
1
–
2.3
3.0
4.8
mA
Leakage Current in Offstate @ Vpin 1 = 500 V
1
1
–
–
32
70
µA
Device Current Consumption
VCC less than UVLOH
VCC = 35 V and Fsw = 2.0 kHz, CL = 1.0 ηF
VCC = 35 V and Fsw = 125 kHz, CL = 1.0 ηF
Startup Current to VCC Capacitor
3. Typical capacitor swing is between 0.5 V and 3.5 V.
4. Guaranteed by design, TJ = 25°C.
8
13
–
8
13
–
8
13
–
8
13
–
–
1.5
1.8
mA
–
1.2
3.0
mA
–
3.0
4.0
mA
1.4
–
–
mA
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