Overview: PD69208T4/PD69204T4/ PD69208M
PoE PSE Manager Introduction Microchip's PD69208T4, PD69204T4, and PD69208M Power over Ethernet (PoE) manager ICs integrate power, analog, and state-of-the-art logic into a single 8 mm × 8 mm, 56-pin, plastic QFN package. The device is used in conjunction with a Microchip PSE controller or an Ethernet switch processor from a supported third-party vendor to provide an IEEE® 802.3af/at/bt or Power over HDBase (PoH) Power Sourcing Equipment (PSE) solution. Typical PoE Application The following figure shows the typical PoE application of Microchip Generation 6 devices. Figure 1. Typical PoE Application with Microchip Controller System Bulk Capacitor 5V 3.3V VMAIN VDDA VDD PD69210 MOSI To Host UART/I2C PD69220 SCK PD69200 xCS PoE Controller MISO VSSA VSS FF Isola�on
Power Supply Monitoring VAUX5 VAUX3P3 VMAIN VMAIN MOSI SCK xCS MISO
PGD<0:3> IREF PORT_NEG0 PD69208T4 PD69204T4 PD69208M
PoE Manager PORT_NEG7
(PD69208T4/M)
PORT_NEG3
(PD69204T4) Required for IEC62368-1 Ed.2 PSYSTEM>250W
VMAIN
Required for IEC62368-1 Ed.2 PSYSTEM>250W AGND DGND Consult Microchip AN3361 Designing an IEEE 802.3af/at/bt PoE System Based on PD692x0/PD69208. © 2022 Microchip Technology Inc.