NCV8851-1 Просмотр технического описания (PDF) - ON Semiconductor
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NCV8851-1 Datasheet PDF : 18 Pages
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NCV8851−1
TYPICAL CHARACTERISTICS
(TA = +25°C, VIN = 13.2 V, ROSC = 51.1 kW, unless otherwise noted)
100%
4.0
90%
3.5
20
Top Gate Bottom Gate
18
80%
3.0
16
70%
2.5
14
60%
2.0
12
50%
40%
1.5
10
30%
170 220 270 320 370 420 470
Switching Frequency (kHz)
Figure 3. Soft−start Time vs.
Frequency
38
Top Gate Bottom Gate
1.0
170 220 270 320 370 420 470
Switching Frequency (kHz)
Figure 4. Driver Quiescent
Current vs. Frequency
105%
Switching No Switching
8
0
1
2
3
4
Load Capacitance (nF)
Figure 5. Driver Fall Time vs. Load
Capacitance
1
33
95%
0.8
28
85%
0.6
23
75%
0.4
18
65%
13
55%
0.2
8
0
1
2
3
4
Load Capacitance (nF)
Figure 6. Driver Rise Time vs.
Load Capacitance
45%
−50
0
50
100
150
Ambient Temperature (°C)
Figure 7. Operating Quiescent
Current vs. Temperature
0
−50
0
50
100
150
Ambient Temperature (°C)
Figure 8. Sleep Mode Quiescent
Current vs. Temperature
101%
101%
100.5%
100%
99%
100%
99%
98%
100.0%
99.5%
98%
−50
0
50
100
150
Ambient Temperature (°C)
Figure 9. Average Current−Limit
Threshold vs. Temperature
97%
−50
0
50
100
150
Ambient Temperature (°C)
Figure 10. Cycle−by−Cycle
Overcurrent Protection
Threshold vs. Temperature
99.0%
−50
0
50
100
150
Ambient Temperature (°C)
Figure 11. VREF vs. Temperature
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