LTC4259ACGW-1#PBF Linear Technology, LTC4259ACGW-1#PBF Datasheet - Page 6

• Manufacturer Part Number: LTC4259ACGW-1#PBF
• Description: IC CTRLR POE QUAD AC DISC 36SSOP
• Manufacturer: Linear Technology

Specifications of LTC4259ACGW-1#PBF

• Controller Type: Power over Ethernet Controller (POE)
• Interface: I²C
• Voltage - Supply: 3 V ~ 4 V
• Current - Supply: 2.5mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 36-SSOP
• Linear Misc Type: Negative Voltage
• Family Name: LTC4259A
• Package Type: SSOP
• Operating Supply Voltage (min): -48V
• Operating Supply Voltage (max): -57V
• Operating Temperature (min): 0C
• Operating Temperature (max): 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 36
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LTC4259A-1
TEST TI I G
6
V
TO V
SENSE n
INT
EE
W U
Figure 4. DC Disconnect Timing
V
MIN
SDA
SCL
V
t
V
Figure 2. Detect, Class and Turn-On Timing in Auto or Semiauto Modes
VMIN
PORT n
GATE n
t
INT
V
1
SENSE n
t
2
V
0V
EE
INSERTED
TO V
t
t
DIS
3
PD
INT
EE
t
V
4
LIM
0V
4259A F04
Figure 3. Current Limit Timing
Figure 6. I
t
t
5
DETDLY
t
DET
t
r
t
CLSDLY
2
t
C Interface Timing
f
V
t
6
V
CLASS
CUT
t
PON
t
START
I
t
DETECT n
7
V
4259A F03
V
t
OSCIN
CLASS
, t
OUT n
INT
ICUT
V
T
Figure 5. AC Disconnect Timing
PORT
TURN ON
(AUTO MODE)
4259A F02
I
ACDMIN
PD REMOVED
t
DIS
4259A F06
t
8
4259A F05
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