LTC4263IDE-1#TRPBF Linear Technology, LTC4263IDE-1#TRPBF Datasheet - Page 3

• Manufacturer Part Number: LTC4263IDE-1#TRPBF
• Description: IC IEEE 803.2AF CNTRLR 14-DFN
• Manufacturer: Linear Technology
• Type: Power Over Ethernet (PoE)r

Specifications of LTC4263IDE-1#TRPBF

• Applications: Power Interface Switch for Power Over Ethernet (PoE) Devices
• Voltage - Supply: 48V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 14-DFN
• Current - Supply: 1mA
• Interface: IEEE 802.3af
• Controller Type: Power Sourcing Equipment Controller (PSE)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS
SYMBOL
Power MOSFET
R
I
R
Current Control
I
I
I
I
I
Detection
I
V
R
R
R
AC Disconnect
R
I
f
A
I
I
V
Digital Interface (Note 8)
V
V
V
V
I
I
temperature range, otherwise specifi cations are at T
relative to V
OUT_LEAK
CUT
LIM
FB
MIN
FAULT
DET
OSC
OSC
ACDMAX
ACDMIN
OLEG
FLT
VACD
ACDEN
DET
OLED
ILD
IHD
OZ
ON
PU
DETMIN
DETMAX
OPEN
OSC
SS
unless otherwise noted. (Note 2, Note 5)
PARAMETER
On-Resistance
OUT Pin Leakage
OUT Pin Pull-Up Resistance to V
Overload Current Threshold
Short-Circuit Current Limit
Foldback Current Limit
DC Disconnect Current Threshold
High Speed Fault Current Limit
Detection Current
Detection Voltage Compliance
Minimum Valid Signature Resistance
Maximum Valid Signature Resistance
Open-Circuit Threshold
OSC Pin Input Impedance
OSC Pin Output Current
OSC Pin Frequency
Voltage Gain OSC to ACOUT
AC Disconnect Output Current
Remain Connected AC Pin Current
AC Disconnect Enable Signal
LED Output Low Voltage
Digital Input Low Voltage
Digital Input High Voltage
Voltage of Legacy Pin if Left Floating
Current In/Out of Legacy Pin
Maximum Allowed Leakage at Legacy
Pin When Floating
DD48
A
= 25°C. V
CONDITIONS
I = 350mA, Measured From OUT to V
V
0V ≤ (V
V
V
V
V
(Note 7)
First Point, V
Second Point, V
V
V
2V ≤ (V
V
V
2V ≤ (V
V
V
V
I
MIDSPAN, SD
LEGACY
MIDSPAN, SD
LEGACY
0V ≤ (V
LED
OUT
OUT
DD48
DD48
DD48
DD48
DD48
OSC
OSC
OSC
OSC
OSC
The
= 10mA
– V
– V
– V
– V
– V
– V
– V
– V
– V
– V
– V
– V
DD48
OSC
OSC
LEGACY
l
SS
SS
SS
SS
SS
SS
SS
DD48
OUT
OUT
OUT
OUT
SS
denotes the specifi cations which apply over the full operating
, Port On
= V
= 5V
– V
= 2V
= 2V
– V
= 2V, 0V ≤ (V
= 2V
– V
= 57V
DD48
, Open Port
= 30V
= 0V (Note 6)
= 10V
– V
– V
DD48
SS
SS
OUT
DD48
) ≤ 3V
) ≤ 3V
– V
SS
SS
) ≤ 5V
– V
) ≤ 5V
– V
OUT
= 48V and V
SS
OUT
ACOUT
= 10V
= 57V
= 3.5V
– V
SS
DD5
) ≤ 4V
SS
not driven externally. All voltages are
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
–140
MIN
15.5
27.5
0.95
360
540
615
615
165
750
235
160
500
175
103
130
–60
–10
5.2
1.5
2.2
2.2
1.1
45
–1
LTC4263-1
1000
29.7
1.25
TYP
500
570
645
645
220
255
180
250
110
160
1.5
7.5
1.0
1.1
90
17
1
1200
2000
MAX
18.5
1.05
640
600
675
675
180
275
275
200
325
140
115
190
2.4
3.0
9.8
2.2
0.8
0.4
1.4
10
21
32
60
10
1
UNITS
42631fa
3
V/V
mA
mA
mA
mA
mA
mA
mA
mA
kΩ
kΩ
kΩ
kΩ
kΩ
μA
μA
μA
μA
Hz
μA
μA
μA
Ω
Ω
V
V
V
V
V
V
V
V