PM8800ATR STMicroelectronics, PM8800ATR Datasheet - Page 31
PM8800ATR
Manufacturer Part Number
PM8800ATR
Description
IC POE-PD PWM CTLR 16-HTSSOP
Manufacturer
STMicroelectronics
Datasheet
1.PM8800ATR.pdf
(35 pages)
Specifications of PM8800ATR
Applications
Power Over Ethernet (PoE)
Interface
IEEE 802.3af
Voltage - Supply
10 V
Package / Case
16-TSSOP Exposed Pad, 16-eTSSOP, 16-HTSSOP
Mounting Type
Surface Mount
For Use With
497-6366 - BOARD EVAL FOR PM8800A
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-6897-2
PM8800ATR
PM8800ATR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PM8800ATR
Manufacturer:
ON
Quantity:
300 000
Part Number:
PM8800ATR
Manufacturer:
ST
Quantity:
20 000
PM8800A
Auxiliary sources
If the current forced into AUXII pin is lower than 60 µA, the internal under voltage lock out
threshold will be lowered but AUXII connection will be not prevalent to the PoE; in this case
power to the DC/DC converter will be drawn from the source that has been applied first.
In case of very low auxiliary voltage (i.e. lower than 15 V) is recommended to supply VCC
directly with the auxiliary voltage through a bypass diode, in order to assure a proper
operation of the pwm section of PM8800A.
Figure 20. Switch over between 48 V PoE and 12 V AUXII auxiliary adapter
Ch3
Ch2
Ch1 = 5 Vout, Ch2 = Aux voltage, Ch3 = internal primary voltage, Ch4 = Aux input current
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