Datasheet

200
300
400
500
600
700
800
900
1000
100 200 300 400 500 600 700 800 900 1000
RT-Resistance-kW
f - SwitchingFrequncy-kHz
s
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
80 100 120 140 160 180 200
RT-ResistancekW
f -SwitchingFrequency-kHz
s
3
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
4
-50 -25 0 25 50 75 100 125 150
T -JunctionTemperature-°C
J
V =3V
I
HighSideSwitchingCurrent- A
0.792
0.794
0.796
0.798
0.8
0.802
0.804
0.806
0.808
-50 -25 0 25 50 75 100 125 150
T -JunctionTemperature-°C
J
V -VoltageReference-V
ref
V =3.3V
I
0.02
0.025
0.03
0.035
0.04
0.045
0.05
0.055
-50 -25 0 25 50 75 100 125 150
T -JunctionTemperature-°C
J
HighSideRdson
V =3.3V
I
HighSideRdson
V =5V
I
LowSideRdson
V =3.3V
I
LowSideRdson
V =5V
I
RDSON-StaticDrain-SourceOn-StateResistance- W
450
460
470
480
490
500
510
520
530
540
550
f -SwitchingFrequency-kHz
s
-50 -25 0 25 50 75 100 125 150
T -JunctionTemperature-°C
J
RT =400k ,
V =3.3V
W
I
TPS54218
www.ti.com SLVS974B –SEPTEMBER 2009–REVISED JULY 2013
TYPICAL CHARACTERISTICS CURVES
HIGH SIDE AND LOW SIDE R
DS (on)
vs TEMPERATURE FREQUENCY vs TEMPERATURE
Figure 1. Figure 2.
HIGH SIDE CURRENT LIMIT vs TEMPERATURE VOLTAGE REFERENCE vs TEMPERATURE
Figure 3. Figure 4.
SWITCHING FREQUENCY vs SWITCHING FREQUENCY vs
RT RESISTANCE LOW FREQUENCY RANGE RT RESISTANCE HIGH FREQUENCY RANGE
Figure 5. Figure 6.
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