Datasheet

446
448
450
452
454
456
458
-40
-20
0
20 40
60 80 100
120
PoE-CurrentLimit-mA
T -JunctionTemperature-°C
J
0
1
2
3
4
5
6
7
8
0
2
4
6
8
10
I -BiasCurrent- A
VDD
m
V -PoEVoltage-V
VDD-VSS
T =125°C
J
T =25°C
J
T =-40°C
J
0
1
2
3
4
5
6
5 10 15 20 25 30 35 40 45 50 55 60
V =8.6V
VC
I -SourceCurrent-mA
VC
V -V
VDD1-RTN
T =-40°C
J
T =25°C
J
T =125°C
J
20
40
60
80
100
120
140
160
-40 -20 0 20 40 60 80 100 120
ConverterStartTime-ms
T -JunctionTemperature-°C
J
C =22 F
VC
m
V =10.2V
VDD1
V =19.2V
VDD1
V =35V
VDD1
TPS23753
www.ti.com SLVS853C –JUNE 2008–REVISED JANUARY 2010
TYPICAL CHARACTERISTICS
DETECTION BIAS CURRENT PoE CURRENT LIMIT
vs vs
VOLTAGE TEMPERATURE
Figure 3. Figure 4.
CONVERTER START TIME CONVERTER STARTUP SOURCE CURRENT
vs vs
TEMPERATURE V
VDD1
Figure 5. Figure 6.
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