NCV8851B ON Semiconductor, NCV8851B Datasheet - Page 6

• Manufacturer Part Number: NCV8851B
• Description: Automotive Grade Synchronous Buck Controller
• Manufacturer: ON Semiconductor

Figure 3. Soft−start Time vs. Fre-
Figure 9. Average Current−Limit
100%
90%
80%
70%
60%
50%
40%
30%
Figure 6. Driver Rise Time vs.
101%
100%
38
33
28
23
18
13
99%
98%
8
Threshold vs. Temperature
170
0
−50
Load Capacitance
220
Switching Frequency (kHz)
Load Capacitance (nF)
1
Ambient Temperature (°C)
Top Gate
0
270
quency
320
Bottom Gate
2
50
370
420
100
3
(T
A
470
= +25°C, V
150
4
Figure 10. Cycle−by−Cycle Over-
current Protection Threshold vs.
Figure 4. Driver Quiescent Cur-
105%
101%
100%
4.0
3.5
3.0
2.5
2.0
1.5
1.0
Figure 7. Operating Quiescent
TYPICAL CHARACTERISTICS
95%
85%
75%
65%
55%
45%
99%
98%
97%
IN
170
= 13.2 V, R
−50
−50
Current vs. Temperature
rent vs. Frequency
220
http://onsemi.com
Switching Frequency (kHz)
Temperature
Ambient Temperature (°C)
Ambient Temperature (°C)
270
0
0
NCV8851B
Switching
OSC
320
= 51.1 kW, unless otherwise noted)
6
50
50
www.DataSheet.co.kr
No Switching
370
100
420
100
470
150
150
Figure 5. Driver Fall Time vs. Load
100.5%
100.0%
20
18
16
14
12
10
Figure 11. V
Figure 8. Sleep Mode Quiescent
0.8
0.6
0.4
0.2
99.5%
99.0%
8
1
0
0
−50
Current vs. Temperature
−50
Capacitance
1
0
Ambient Temperature (°C)
Ambient Temperature (°C)
0
Top Gate
REF
Load Capacitance (nF)
vs. Temperature
2
50
50
Bottom Gate
100
100
3
150
150
4
Datasheet pdf - http://www.DataSheet4U.net/