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LTC4290CIUJ#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P32
LTC4290/LTC4271
10
429071fb
For more information www.linear.com/LTC4290
TEST TIMING DIAGRAMS
Figure 1. Detect, Class and Turn-On Timing in AUTO Pin or Semi-auto Modes
Figure 2. Current Limit Timing
Figure 3. DC Disconnect Timing
V
PORTn
INT
V
OC
V
EE
t
DET
t
ME
t
MEL
V
MARK
V
CLASS
15.5V
20.5V
t
CLE
t
CLE
t
CLEON
PD
CONNECTED
0V
429071 F01
FORCED-CURRENT
CLASSIFICATION
t
PON
FORCED-
VOLTAGE
V
LIM
V
CUT
0V
V
SENSEn
TO V
EE
INT
429071 F02
t
START
, t
CUT
V
MIN
V
SENSEn
TO V
EE
INT
t
DIS
t
MPS
429071 F03
LTC4290/LTC4271
11
429071fb
For more information www.linear.com/LTC4290
TEST TIMING DIAGRAMS
Figure 4. Shut Down Delay Timing
Figure 5. I
2
C Interface Timing
V
GATEn
V
EE
MSD
t
MSD
429071 F04
SCL
SDA
t
1
t
2
t
3
t
r
t
f
t
5
t
6
t
7
t
8
t
4
429071 F05
LTC4290/LTC4271
12
429071fb
For more information www.linear.com/LTC4290
I
2
C TIMING DIAGRAMS
Figure 6. Writing to a Register
Figure 7. Reading from a Register
Figure 8. Reading the Interrupt Register (Short Form)
Figure 9. Reading from Alert Response Address
SCL
SDA
429071 F06
AD6 01
AD3 AD2 AD1 AD0 A7 A6 A5 A4 A3 A2 A1 A0
R/W
ACK
D7 D6 D5 D4 D3 D2 D1 D0
ACK ACK
START BY
MASTER
ACK BY
SLAVE
ACK BY
SLAVE
ACK BY
SLAVE
FRAME 1
SERIAL BUS ADDRESS BYTE
FRAME 2
REGISTER ADDRESS BYTE
FRAME 3
DATA BYTE
STOP BY
MASTER
SCL
SDA
AD6 01
AD3 AD2 AD1 AD0 A7 A6 A5 A4 A3 A2 A1 A0
R/W
ACK
ACK
01
AD3 AD2 AD1 AD0 D7 D6 D5 D4 D3 D2 D1 D0
R/W
ACK
ACK
START BY
MASTER
ACK BY
SLAVE
ACK BY
SLAVE
429071 F07
STOP BY
MASTER
REPEATED
START BY
MASTER
ACK BY
SLAVE
NO ACK BY
MASTER
FRAME 1
SERIAL BUS ADDRESS BYTE
FRAME 2
REGISTER ADDRESS BYTE
FRAME 1
SERIAL BUS ADDRESS BYTE
FRAME 2
DATA BYTE
AD6
SCL
SDA
429071 F08
AD6 1 0
AD3 AD2 AD1 AD0 D7 D6 D5 D4 D3 D2 D1 D0
R/W
ACK
ACK
START BY
MASTER
ACK BY
SLAVE
NO ACK BY
MASTER
FRAME 1
SERIAL BUS ADDRESS BYTE
FRAME 2
DATA BYTE
STOP BY
MASTER
SCL
SDA
429071 F09
0 0 110
AD30AD600 1 AD2 AD1 AD0
R/W
ACK
ACK1
START BY
MASTER
ACK BY
SLAVE
NO ACK BY
MASTER
FRAME 1
ALERT RESPONSE ADDRESS BYTE
FRAME 2
SERIAL BUS ADDRESS BYTE
STOP BY
MASTER
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P32

LTC4290CIUJ#PBF

Mfr. #:
Buy LTC4290CIUJ#PBF
Manufacturer:
Analog Devices Inc.
Description:
Power Switch ICs - POE / LAN PoE 13W 8-Port PSE Controller (Ethernet interface
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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