LTC4269IDKD-1#PBF Linear Technology, LTC4269IDKD-1#PBF Datasheet - Page 8

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

Specifications of LTC4269IDKD-1#PBF

• 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)
• Input Voltage: 60V
• Supply Current: 6.4mA
• Digital Ic Case Style: DFN
• No. Of Pins: 32
• Duty Cycle (%): 88%
• Frequency: 100kHz
• Operating Temperature Range: -40°C To +85°C
• Msl: MSL 1 - Unlimited
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LTC4269-1
TYPICAL PERFORMANCE CHARACTERISTICS
8
1700
1650
1600
1550
1500
1450
1400
1350
1300
1250
1200
1150
1100
–10
–30
–70
–50
23
22
21
20
19
18
17
16
15
10
70
50
30
–50
–50
0.9
Feedback Amplifi er Output
Current vs V
Feedback Amplifi er Voltage Gain
vs Temperature
Soft-Start Charge Current
vs Temperature
–25
–25
1
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
1.1
FB
25
25
V
FB
1.2
(V)
50
50
125°C
1.3
75
75
–40°C
1.4
100
100
25°C
42691 G25
42691 G22
42691 G19
125
125
1.5
1.250
1.245
1.220
1.240
1.235
1.230
1.225
70
65
50
40
60
55
45
80
70
60
50
40
30
20
10
0
–50
–50
Feedback Amplifi er Source and
Sink Current vs Temperature
UVLO vs Temperature
0
PG, SG Rise and Fall Times
vs Load Capacitance
T
A
–25
= 25°C
1
–25
2
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
3
CAPACITANCE (nF)
FALL TIME
SOURCE CURRENT
25
4
25
5
50
50
V
FB
6
RISE TIME
= 1.1V
75
75
7
V
CURRENT
FB
8
SINK
100
100
= 1.4V
42691 G23
42691 G20
42691 G26
9
125
125
10
1050
1100
1000
20.5
19.0
21.5
21.0
20.0
19.5
950
900
3.7
3.4
3.0
3.6
3.5
3.3
3.2
3.1
–50
–50
–50 –25
V
vs Temperature
Feedback Amplifi er g
vs Temperature
I
UVLO
I
CC
CC
–25
–25
= 10mA
Clamp Voltage
Hysteresis vs Temperature
0
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
25
25
25
50
50
50
m
75
75
75
100
100
100
42691 G21
42691 G27
42691 G24
42691fb
125
125
125