Datasheet

LTC4290/LTC4271
28
429071fa
For more information www.linear.com/LTC4290
typicAl ApplicAtion
0.01µF
200V
0.01µF
200V
1 2 3 4 5 6 7 8
RJ45
CONNECTOR
••
3.3V –54V
100Ω
100Ω
T2 T3
••
3.3V –54V
–54V
ISOLATED
ISOLATED
GND
–54V
100Ω
100Ω
GP0 GP1 MID RESET MSD INT AUTO SCL AD0 AD1 AD2 AD3 AD6
DGND
V
EE
VSSK
CAP1
CAP2
DND
DPD CND
CPD
DNA AGND DPA CNA CPA
OUT8 OUT1
GATE1
SENSE1
GATE8
SENSE8
XIO0 XIO1
429071 TA02
SDAIN SDAOUT
LTC4271 LTC4290
V
DD33
1µF
3.3V 0.1µF 1µF
1µF
2nF 2000V
SMAJ58A
1µF 100V X7R
0.1µF
+
>47µF
SYSTEM
BULK CAP
S1B
1
7
8
2
T1
0.25Ω, 1%
RS
0.22µF 100V X7R
S1B
FDMC3612
• •
••
• •
• •
••
• •
0.01µF
200V
0.01µF
200V
0.01µF
200V
0.01µF
200V
75Ω75Ω 75Ω75Ω
1 2 3 4 5 6 7 8
RJ45
CONNECTOR
PHY
(NETWORK
PHYSICAL
LAYER
CHIP)
Complete 8-Port PSE