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UCC2897A Datasheet(PDF) 10 Page - Texas Instruments

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Part # UCC2897A
Description  Advanced Current-Mode Active-Clamp PWM Controller
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

UCC2897A Datasheet(HTML) 10 Page - Texas Instruments

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TJ -- Junction Temperature -- °C
0
0.2
0.4
1.0
1.2
1.4
--50
--25
0
25
50
75
100
125
0.6
0.8
Hiccup Mode
Cycle-by-Cycle Current Limit
--50
--25
0
25
50
75
100
125
2.10
2.15
2.20
2.35
2.45
2.50
2.30
2.25
2.40
TJ -- Junction Temperature -- °C
--50
--25
0
25
50
75
100
125
67
66
69
68
70
72
71
73
74
TJ -- Junction Temperature -- °C
RON = ROFF = 75 kΩ
TJ -- Junction Temperature -- °C
225
230
235
260
270
275
240
--50
--25
0
25
50
75
100
125
245
250
255
265
RON = ROFF = 75 kΩ
10
1 K
10 K
100 K
10 M
100
1000
1 M
RON = ROFF -- Timing Resistance -- kΩ
--50
0.42
0.40
--25
0
25
50
75
100
125
0.46
0.44
0.50
0.48
0.54
0.52
0.58
0.56
0.60
TJ -- Junction Temperature -- °C
UCC2897A
SLUS829E – AUGUST 2008 – REVISED APRIL 2015
www.ti.com
Typical Characteristics (continued)
Figure 8. Soft Start/Shutdown Threshold Voltage vs.
Figure 9. Switching Frequency vs. Programming Resistance
Junction Temperature
Figure 10. Oscillator Frequency vs. Junction Temperature
Figure 11. Maximum Duty Cycle vs. Junction Temperature
Figure 13. Synchronization Threshold Voltage vs. Junction
Figure 12. Current Sense Threshold Voltage vs. Junction
Temperature
Temperature
10
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Product Folder Links: UCC2897A


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