LTC4269IDKD-1#TRPBF Linear Technology, LTC4269IDKD-1#TRPBF Datasheet - Page 39

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

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

TYPICAL APPLICATIONS
54V FROM
DATA PAIR
+
–
B1100 8 PLCS
54V FROM
SPARE PAIR
T1: PCA ELECTRONICS, EPC3409G-LF
T2: PULSE, PE-68386NL
C1: PSLB20J107M(45)
48V AUXILLIARY
POWER
OR
PULSE, PA2369NL
82
BAS21
92
90
88
86
84
80
78
76
74
72
0.5 1.0
57V
42V
PORT
PORT
1.5
SMAJ58A
OUTPUT CURRENT (A)
10k
S1B
0.1μF
100V
Effi ciency
2.0
50V
107k
PORT
2.5
V
PORTP
BSS63LT1
3.0
30.9Ω
24k
36V
PDZ36B
3.5
V
SHDN
4.0
V
R
V
PORTP
PORTN
CLASS
NEG
383k
14.0k
42691 TA03b
UVLO
4.5
SYNC
5.0
PoE-Based 5V, 5A Power Supply
PWRGD
GND
+
OSC
10μF
10μH
33pF
PGDLY
12k
LTC4269-1
2.2μF
t
ON
100k
27.4k
3.01k
ENDLY
BAS21
20Ω
FB
38.3k
R
CMP
V
CC
1.2k
39k
+
5.00
C
5.25
5.20
5.15
5.10
5.05
4.95
4.90
4.85
4.80
4.75
CMP
10μF
0.1μF
0
PG
V
CMP
0.5
SENSE
SENSE
1nF
SG
1.0
1μF
+
–
OUTPUT CURRENT (A)
1.5
Regulation
10k
3.3nF
FDS2582
150Ω
33mΩ
2.0
22pF
100Ω
1μF
2.5
•
•
•
T2
T1
3.0
2.2nF
•
•
2kV
50V
5.1Ω
1.5nF
3.5
MMBT3906
2.2nF
LTC4269-1
PORT
4.0
42V
57V
42691 TA03c
FDS8880
4.5
0.18μH
47μF
PORT
PORT
MMBT3904
15Ω
42691 TA03a
BAT54
5.0
+
C1
100μF
39
10k
42691fb
5V
5A