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UCC28251 Datasheet(PDF) 11 Page - Texas Instruments

Part No. UCC28251
Description  UCC28251 Advanced PWM Controller With Prebias Operation
Download  55 Pages
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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UCC28251 Datasheet(HTML) 11 Page - Texas Instruments

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97.4
97.5
97.6
97.7
97.8
−45
−15
15
45
75
105
135
TJ − Temperature (°C)
G000
37
38
39
40
41
42
43
44
45
46
47
−45
−15
15
45
75
105
135
TJ − Temperature (°C)
TDPS at RPS= 27k Ω
TDSP at RSP= 20k Ω
G000
41
43
45
47
49
51
53
55
−45
−15
15
45
75
105
135
TJ − Temperature (°C)
G000
0.9
0.91
0.92
0.93
0.94
0.95
0.96
−45
−15
15
45
75
105
135
TJ − Temperature (°C)
G000
692.8
692.9
693
693.1
693.2
693.3
693.4
−45
−15
15
45
75
105
135
TJ − Temperature (°C)
G000
8.52
8.54
8.56
8.58
8.6
8.62
8.64
8.66
8.68
8.7
−45
−15
15
45
75
105
135
TJ − Temperature (°C)
G000
UCC28251
www.ti.com
SLUSBD8E – FEBRUARY 2013 – REVISED DECEMBER 2014
Typical Characteristics (continued)
Figure 13. OVP Internal Reference vs Temperature
Figure 14. OVP Internal Current vs Temperature
Figure 15. Minimum Synchronization Frequency vs
Figure 16. Maximum Synchronization Frequency vs
Temperature
Temperature
Figure 17. Nominal Switching Frequency vs Temperature
Figure 18. Dead Time vs Temperature
Copyright © 2013–2014, Texas Instruments Incorporated
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11
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