LTC4264IDE#PBF Linear Technology, LTC4264IDE#PBF Datasheet - Page 4

• Manufacturer Part Number: LTC4264IDE#PBF
• Description: IC CNTRLR PD INTERFACE 12-DFN
• Manufacturer: Linear Technology

Specifications of LTC4264IDE#PBF

• Controller Type: Power over Ethernet Controller (POE)
• Interface: IEEE 802.3af
• Current - Supply: 3mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 12-DFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -

LTC4264
TYPICAL PERFORMANCE CHARACTERISTICS
4
V1:
V2:
0.5
0.4
0.3
0.2
0.1
28
26
25
24
22
27
23
0
4
3
2
1
0
–2
–1
0
0
Input Current vs Input Voltage
25k Detection Range
Signature Resistance
vs Input Voltage
Active Low PWRGD
Output Low Voltage vs Current
RESISTANCE =
DIODES: HD01
T
T
T
A
A
A
LTC4264 ONLY
= 25°C
= 25°C
= 25°C
–2
2
–3
–4
LTC4264 + 2 DIODES
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
CURRENT (mA)
∆V
∆I
–4
4
–5
–6
=
V2 – V1
IEEE LOWER LIMIT
I
IEEE UPPER LIMIT
2
– I
–6
6
1
–7
–8
–8
8
–10
–9
4264 G07
4264 G01
4264 G04
–10
10
CURRENT
20mA/DIV
VOLTAGE
10V/DIV
CLASS
INPUT
100
0.6
1.0
0.8
0.4
0.2
80
60
40
20
0
0
0
*OPTIONAL CLASS CURRENT
0
Input Current vs Input Voltage
Class Operation vs Time
Active High PWRGD
Output Low Voltage vs Current
T
T
GND – V
A
A
= 25°C
= 25°C
–10
OUT
0.5
INPUT VOLTAGE (V)
– 20
= 4V
TIME (10µs/DIV)
CLASS 5*
CLASS 2
CLASS 4
CLASS 3
CLASS 1
I
CLASS 0
IN
–30
(mA)
1
–40
1.5
T
A
–50
= 25°C
4264 G02
4264 G05
4264 G08
–60
2
12.0
11.0
10.5
10.0
11.5
400
800
600
200
9.0
1.0
0.8
0.6
0.4
0.2
9.5
0
–12
–50
–40
Input Current vs Input Voltage
On Resistance vs Temperature
Current Limit vs Input Voltage
CLASS 1 OPERATION
–25
–14
JUNCTION TEMPERATURE (°C)
–45
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
0
–40°C
–40°C
85°C
85°C
–16
–40°C
85°C
–50
25
HIGH CURRENT MODE
LOW CURRENT MODE
–18
50
–55
–20
75
4264 G03
4264 G06
4264 G09
4264f
–22
100
–60