LTC4269IDKD-1#TRPBF Linear Technology, LTC4269IDKD-1#TRPBF Datasheet - Page 40

IC PD/OPTO FLYBACK CTRLR 32-DFN

LTC4269IDKD-1#TRPBF

Manufacturer Part Number
LTC4269IDKD-1#TRPBF
Description
IC PD/OPTO FLYBACK CTRLR 32-DFN
Manufacturer
Linear Technology
Type
Power Over Ethernet (PoE)r
Datasheet

Specifications of LTC4269IDKD-1#TRPBF

Applications
Power Interface Switch for Power Over Ethernet (PoE) Devices
Voltage - Supply
14 V ~ 16 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
32-DFN
Current - Supply
1.35mA
Interface
IEEE 802.3af
Controller Type
Powered Device Interface Controller (PD)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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LTC4269-1
TYPICAL APPLICATIONS
40
+
B1100 8 PLCS
54V FROM
DATA PAIR
54V FROM
SPARE PAIR
T1: PCA ELECTRONICS, EPC3410G-LF
T2: PULSE, PE-68386NL
C1: PSLDIC476MH
48V AUXILLIARY
POWER
OR
PULSE, PA2467NL
83
93
91
89
87
85
81
79
77
75
73
BAS21
0.2
42V
0.4
IN
0.6
SMAJ58A
10k
S1B
LOAD CURRENT (A)
0.1μF
100V
0.8
48V
Effi ciency
IN
107k
1.0
V
PORTP
57V
1.2
BSS63LT1
30.9Ω
24k
36V
PDZ36B
IN
1.4
1.6
V
SHDN
R
V
V
PORTP
CLASS
PORTN
NEG
383k
14.0k
42691 TA04b
1.8
UVLO
SYNC
2.0
PoE-Based 12V, 2A Power Supply
PWRGD
GND
+
OSC
10μF
10μH
33pF
PGDLY
12k
LTC4269-1
2.2μF
t
ON
100k
29.4k
3.01k
ENDLY
BAS21
20Ω
FB
38.3k
R
CMP
V
CC
2.2k
20k
+
C
12.0
12.5
12.4
12.3
12.2
12.1
11.9
11.8
11.7
11.6
11.5
CMP
22μF
0.1μF
0.2
PG
V
CMP
0.38
SENSE
SENSE
1nF
SG
1μF
0.56
+
0.74
10k
LOAD CURRENT (A)
Regulation
4.7nF
FDS2582
150Ω
33mΩ
0.92
47pF
100Ω
1μF
1.1
T1
T2
1.3
2.2nF
2kV
15Ω
470pF
MMBT3906
1.5
2.2nF
50V
IN
1.6 1.8
FDS3572
42691 TA04c
42V
57V
0.33μH
10μF
MMBT3904
IN
IN
15Ω
42691 TA04a
BAT54
2
+
C1
47μF
10k
42691fb
12V
2A

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