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TPS54821 Datasheet(PDF) 9 Page - Texas Instruments

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Part # TPS54821
Description  4.5 V to 17 V Input, 8 A Synchronous Step Down SWIFT??Converter With Hiccup
PDF  37 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS54821 Datasheet(HTML) 9 Page - Texas Instruments

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background image
0.01
0.02
0.03
0.04
-50
-25
0
25
50
75
100
125
T - Junction Temperature - °C
J
80
90
100
110
120
-50
-25
0
25
50
75
100
125
T - Junction Temperature - °C
J
VSENSE Rising
VSENSE Falling
VSENSE Rising
VSENSE Falling
VIN = 12 V
11
12
13
14
15
16
17
T = 125°C
J
T = 25°C
J
T = -40°C
J
3
6
9
12
15
18
V - Input Voltage - V
I
70
80
90
100
110
120
VIN = 12 V
-50
-25
0
25
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75
100
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T - Junction Temperature - °C
J
3
4
5
6
-50
-25
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T - Junction Temperature - °C
J
RT = 100 k ,
VIN = 12 V
W
2
2.1
2.2
-50
-25
0
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T - Junction Temperature - °C
J
TPS54821
www.ti.com
SLVSB14
– OCTOBER 2011
TYPICAL CHARACTERISTICS (continued)
SS/TR TO VSENSE OFFSET vs JUNCTION TEMPERATURE
PWRGD THRESHOLD vs JUNCTION TEMPERATURE
Figure 11.
Figure 12.
HIGH-SIDE CURRENT LIMIT THRESHOLD vs
MINIMUM CONTROLLABLE ON TIME vs
INPUT VOLTAGE
JUNCTION TEMPERATURE
Figure 13.
Figure 14.
MINIMUM CONTROLLABLE DUTY RATIO vs
BOOT-PH UVLO THRESHOLD vs JUNCTION
JUNCTION TEMPERATURE
TEMPERATURE
Figure 15.
Figure 16.
Copyright
© 2011, Texas Instruments Incorporated
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Product Folder Link(s) :TPS54821



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