PM8800 STMicroelectronics, PM8800 Datasheet - Page 4

• Manufacturer Part Number: PM8800
• Description: Integrated IEEE 802.3af compliant PoE-PD interface and PWM controller with support of external source
• Manufacturer: STMicroelectronics

Typical application circuit and block diagram
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1.1
Figure 1.
Figure 2.
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Typical application circuit and block diagram
Application circuits
Simplified application schematic for powered devicesing PM8800A in isolated
configuration
Simplified application schematic for powered device using PM8800A in non-isolated
buck configuration
Vin
VIN
AUXII
nPGD
AUXI_IRL
DCCL
RCLASS
VSS
AUXI_IRL
VIN
DCCL
RCLASS
VSS
PM8800
PM8800
A
AGND
COMP
GND
A
VCC
VFB
CS
GD
SS
RT
COMP
AGND
nPGD
AUXII
GND
VCC
VFB
GD
CS
SS
RT
PM8800A
Vout+
Vout-