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UCC28251 Datasheet(PDF) 10 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) 10 Page - Texas Instruments

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3.2505
3.251
3.2515
3.252
3.2525
3.253
−45
−15
15
45
75
105
135
TJ − Temperature (°C)
VDD = 7V
VDD = 12V
VDD = 17V
ILOAD = 2mA
G000
3.242
3.244
3.246
3.248
3.25
3.252
3.254
3.256
3.258
−45
−15
15
45
75
105
135
TJ − Temperature (°C)
ILOAD = 10uA
ILOAD = 1mA
ILOAD = 10mA
VDD = 12V
G000
-45
135
T
J - Temperature - °C
0.2
0.3
0.4
0.7
45
0.6
15
-15
75
105
V
HICC_RST
V
HICC_SD
0.5
10
30
50
70
90
−45
−15
15
45
75
105
135
TJ − Temperature (°C)
TPD_ILIM
TBLANK
G000
-45
135
T
J - Temperature - °C
1.5
2.0
3.0
5.0
45
4.5
15
-15
75
105
3.5
V
HICC_PU
V
CS(max)
2.5
4.0
503.6
503.8
504
504.2
504.4
504.6
504.8
505
505.2
−45
−15
15
45
75
105
135
TJ − Temperature (°C)
G000
UCC28251
SLUSBD8E – FEBRUARY 2013 – REVISED DECEMBER 2014
www.ti.com
Typical Characteristics (continued)
Figure 7. Cycle-by-Cycle Current Limit vs Temperature
Figure 8. RAMP/CS Clamp Voltage and Hiccup Pull-Up
Threshold vs Temperature
Figure 9. Propagation Delay/Leading Edge Blanking vs
Figure 10. Current Limit Shutdown Delay Timer and Hiccup
Temperature
Restart vs Temperature
Figure 11. Reference Voltage vs Temperature
Figure 12. Reference Voltage vs Temperature
10
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Product Folder Links: UCC28251


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