IC PD/OPTO FLYBACK CTRLR 32-DFN

LTC4269CDKD-1#PBF

Manufacturer Part NumberLTC4269CDKD-1#PBF
DescriptionIC PD/OPTO FLYBACK CTRLR 32-DFN
ManufacturerLinear Technology
TypePower Over Ethernet (PoE)
LTC4269CDKD-1#PBF datasheet
 

Specifications of LTC4269CDKD-1#PBF

ApplicationsPower Interface Switch for Power Over Ethernet (PoE) DevicesVoltage - Supply14 V ~ 16 V
Operating Temperature0°C ~ 70°CMounting TypeSurface Mount
Package / Case32-DFNCurrent - Supply1.35mA
InterfaceIEEE 802.3afController TypePowered Device Interface Controller (PD)
Input Voltage60VSupply Current6.4mA
Digital Ic Case StyleDFNNo. Of Pins32
Duty Cycle (%)88%Frequency100kHz
Operating Temperature Range0°C To +70°CMslMSL 1 - Unlimited
Rohs CompliantYesOperating Temperature (max)70C
Operating Temperature (min)0CPin Count32
MountingSurface MountPackage TypeDFN EP
Case Length7mmScreening LevelCommercial
Lead Free Status / RoHS StatusLead free / RoHS Compliant  
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LTC4269-1
TYPICAL PERFORMANCE CHARACTERISTICS
Input Current vs Input Voltage
25k Detection Range
0.5
T
= 25°C
A
0.4
0.3
0.2
0.1
0
0
2
4
6
8
V
VOLTAGE (V)
PORTP
42691 G01
Signature Resistance
vs Input Voltage
28
V
V2 – V1
RESISTANCE =
=
I
I
– I
2
1
27
DIODES: HD01
T
= 25°C
A
IEEE UPPER LIMIT
26
LTC4269-1 + 2 DIODES
25
24
LTC4269-1 ONLY
IEEE LOWER LIMIT
23
22
V1:
1
3
9
5
7
V2:
2
4
6
8
10
V
VOLTAGE (V)
PORTP
42691 G04
PWRGD, T2P Output Low Voltage
vs Current
0.8
T
= 25°C
A
0.6
0.4
0.2
0
0
2
4
6
8
CURRENT (mA)
42691 G07
6
Input Current vs Input Voltage
50
T
= 25°C
A
CLASS 4
40
CLASS 3
30
CLASS 2
20
CLASS 1
10
CLASS 0
0
0
10
20
30
40
10
V
VOLTAGE (V)
PORTP
(RISING)
Class Operation vs Time
T
V
A
PORTP
VOLTAGE
10V/DIV
CLASS
CURRENT
10mA/DIV
TIME (10μs/DIV)
Active High PWRGD
Output Low Voltage vs Current
1.0
T
= 25°C
A
V
– V
= 4V
PORTP
NEG
0.8
0.6
0.4
0.2
0
10
0
0.5
1
1.5
CURRENT (mA)
Input Current vs Input Voltage
11.0
CLASS 1 OPERATION
10.5
85°C
–40°C
10.0
9.5
50
60
12
14
16
18
V
VOLTAGE (V)
PORTP
42691 G02
On-Resistance vs Temperature
= 25°C
1.0
0.8
0.6
0.4
0.2
42691 G05
–50
–25
0
25
JUNCTION TEMPERATURE (°C)
Inrush Current vs Input Voltage
115
110
110
105
105
100
100
95
95
90
90
85
2
40
45
50
V
VOLTAGE (V)
PORTP
42691 G08
20
22
42691 G03
50
75
100
42691 G06
55
60
42691 G09
42691fb