Datasheet

T
J
− Junction Temperature − °C
20
40
60
80
100
120
140
160
−40 −20 0 20 40 60 80 100 120
Converter Start Time − ms
G003
C
VC
= 22 µF
V
VDD1
= 35 V
V
VDD1
= 19.2 V
−40 −20 0 20 40 60 80 100 120
T
J
-Junction Temperature- C
o
20
100
140
160
Start Time − ms
C
VC
=22 Fm
V
VDD1
=10.2V
V
VDD1
=35V
120
80
60
40
(V
VDD
− V
VSS
) − PoE Voltage − V
0
1
2
3
4
5
6
7
8
0 2 4 6 8 10
I
VDD
− Bias Current − µA
G001
−40°C
25°C
125°C
T
J
− Junction Temperature − °C
910
920
930
940
950
960
970
−40 −20 0 20 40 60 80 100 120
PoE − Current Limit − mA
G002
Pulsed Current Measurement
TPS23754
TPS23754-1
TPS23756
SLVS885G –OCTOBER 2008–REVISED OCTOBER 2013 www.ti.com
TYPICAL CHARACTERISTICS
DETECTION BIAS CURRENT PoE CURRENT LIMIT
vs vs
VOLTAGE TEMPERATURE
Figure 3. Figure 4.
'754 CONVERTER START TIME '756 CONVERTER START TIME
vs vs
TEMPERATURE TEMPERATURE
Figure 5. Figure 6.
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