LTC4269IDKD-2#PBF Linear Technology, LTC4269IDKD-2#PBF Datasheet - Page 9

• Manufacturer Part Number: LTC4269IDKD-2#PBF
• Description: IC PD/SYNC FORWARD CTRLR 32-DFN
• Manufacturer: Linear Technology
• Type: Power Over Ethernet (PoE)r

Specifications of LTC4269IDKD-2#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)
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Pin Count: 32
• Mounting: Surface Mount
• Package Type: DFN EP
• Case Length: 7mm
• Screening Level: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Typical perForMance characTerisTics
200
150
100
100
90
50
80
70
0
–50
100
t
vs Temperature
OUT : Max Duty Cycle vs f
DELAY
T
SS_MAXDC = 2.5V
SD_V
A
= 25°C
–25
SEC
: SOUT Rise to OUT Rise
200
= 1.4V
0
TEMPERATURE (°C)
2.32
2.20
2.08
1.96
1.84
1.72
1.60
R
R
DELAY
DELAY
f
25
OSC
100
SS_MAXDC Setting vs f
(for OUT DC = 72%)
300
T
SD_V
R
= 120k
= 40k
A
(kHz)
DELAY
50
= 25°C
SEC
= 10k
200
= 1.32V
75
400
OSC
100
f
OSC
42692 G28
42692 G31
300
(kHz)
125
500
OSC
400
240
160
80
90
80
70
60
50
40
30
20
10
0
0
1.32
42692 G34
0
t
vs R
OUT : Max Duty Cycle CLAMP
vs SD_V
DELAY
T
T
SS_MAXDC = 1.84V
f
R
OSC
A
A
DELAY
500
= 25°C
= 25°C
DELAY
40
= 200kHz
: SOUT Rise to OUT Rise
= 10k
1.65
SEC
80
SD_V
R
DELAY
120
1.98
SEC
(k)
(V)
0.8
0.6
0.4
0.2
1.2
1.0
160
0
–50
SS_MAXDC Reset and Active
Thresholds vs Temperature
2.31
200
–25
42692 G32
42692 G29
2.64
240
0
TEMPERATURE (°C)
ACTIVE THRESHOLD
RESET THRESHOLD
25
100
125
50
75
50
25
60
50
40
30
90
80
70
20
0
1.60
0
OUT Rise/Fall Time vs OUT Load
Capacitance
OUT : Max Duty Cycle CLAMP
vs SS_MAXDC
T
T
f
R
OSC
A
75
A
DELAY
= 25°C
= 25°C
= 200kHz
1000
100
OUT LOAD CAPACITANCE (pF)
= 10k
42692 G35
125
t
LTC4269-2
SS_MAXDC (V)
r
2000
1.84
t
f
3000
SD_V
SD_V
SD_V
SEC
SEC
SEC
4000
2.08
= 1.32V
= 1.98V
= 2.64V
42692 G30
42692 G33
42692fb

5000