PM8803 STMicroelectronics, PM8803 Datasheet - Page 26

• Manufacturer Part Number: PM8803
• Description: High efficiency integrated IEEE 802.3at PoE-PD interface and PWM controller type 2 PSE indicator, plus support for forward active clamp topology
• Manufacturer: STMicroelectronics

PWM controller
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The same delay time is set between the GAT1 falling edge and the subsequent GAT2 falling
edge.
The useful range for R
connected to this pin.
Figure 12. Delay time vs. R
Figure 13. Timing relationship between output drivers as a function of DT
DT [ns]
320
300
280
260
240
220
200
180
160
140
120
100
80
60
40
20
0
0
GAT1
GAT2
10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200
DT
is between 5 k to 200 kOhm. A resistor should always be
Doc ID 018559 Rev 1
DT
DT
R
DT
[KOhm]
DT
AM045102v1
AM045103v1
PM8803