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UCC28250 Datasheet(PDF) 27 Page - Texas Instruments

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Part No. UCC28250
Description  Advanced PWM Controller With Pre-Bias Operation
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

UCC28250 Datasheet(HTML) 27 Page - Texas Instruments

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background image
-45
135
T
J - Temperature - °C
2.60
2.70
2.85
45
2.75
2.65
15
-15
75
105
2.80
F
SW = 200 kHz
-45
135
T
J - Temperature - °C
26.8
27.1
27.4
45
27.2
26.9
15
-15
75
105
27.3
27.0
-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
-45
135
T
J - Temperature - °C
499.4
499.8
500.0
500.6
45
500.2
499.6
15
-15
75
105
500.4
UCC28250
www.ti.com
SLUSA29B – APRIL 2010 – REVISED OCTOBER 2010
TYPICAL CHARACTERISTICS (continued)
OPERATING SUPPLY CURRENT
SOFT-START CURRENT
vs
vs
TEMPERATURE
TEMPERATURE
Figure 24.
Figure 25.
RAMP/CS CLAMP VOLTAGE AND HICCUP PULL-UP
CYCLE-BY-CYCLE CURRENT LIMIT
THRESHOLD
vs
vs
TEMPERATURE
TEMPERATURE
Figure 26.
Figure 27.
Copyright © 2010, Texas Instruments Incorporated
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