LTC4263CDE-1#PBF Linear Technology, LTC4263CDE-1#PBF Datasheet - Page 2

• Manufacturer Part Number: LTC4263CDE-1#PBF
• Description: IC IEEE 803.2AF CNTRLR 14-DFN
• Manufacturer: Linear Technology
• Type: Power Over Ethernet (PoE)r

Specifications of LTC4263CDE-1#PBF

• Applications: Power Interface Switch for Power Over Ethernet (PoE) Devices
• Voltage - Supply: 48V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 14-DFN
• Current - Supply: 1mA
• Interface: IEEE 802.3af
• Controller Type: Power Sourcing Equipment Controller (PSE)
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Pin Count: 14
• Mounting: Surface Mount
• Package Type: DFN EP
• Case Length: 4mm
• Screening Level: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
LTC4263-1
(Note 1, Note 2)
Supply Voltages
Pin Voltages and Currents
Operating Ambient Temperature Range
Junction Temperature (Note 4) ............................. 125°C
Storage Temperature Range ................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
ORDER INFORMATION
LEAD FREE FINISH
LTC4263CDE-1#PBF
LTC4263IDE-1#PBF
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
temperature range, otherwise specifi cations are at T
relative to V
SYMBOL
Power Supplies
V
V
V
V
V
V
I
I
2
DD48
DD5
LTC4263CDE-1 ............................................ 0°C to 70°C
LTC4263IDE-1 ......................................... –40°C to 85°C
SUPPLY
UVLO_OFF
UVLO_HYS
OVLO_OFF
OVLO_HYS
DD5
V
V
LEGACY, MIDSPAN, SD, OSC ..V
LED .......................................V
OUT, ACOUT ............................................ (See Note 3)
SS
DD5
– V
........................................V
DD48
SS
unless otherwise noted. (Note 2, Note 5)
........................................... 0.3V to –80V
PARAMETER
UVLO Turn-Off Voltage
UVLO Hysteresis
OVLO Turn-Off Voltage
OVLO Hysteresis
V
V
V
V
Supply Voltage
DD5
DD5
DD48
DD5
Supply Voltage
Internal Supply
Supply Current
Supply Current
TAPE AND REEL
LTC4263CDE-1#TRPBF
LTC4263IDE-1#TRPBF
SS
SS
SS
– 0.3V to V
– 0.3V to V
– 0.3V to V
http://www.linear.com/leadfree/
PART MARKING*
42631
42631
http://www.linear.com/tapeandreel/
A
= 25°C. V
SS
CONDITIONS
V
30W Output Power
V
V
Driven Externally
Driven Internally
V
Internal V
V
SS
SS
DD48
DD48
DD48
DD5
DD5
+ 80V
The
+ 6V
+6V
– V
– V
– V
– V
– V
l
SS
SS
DD48
SS
SS
SS
DD5
denotes the specifi cations which apply over the full operating
= 5V
= 5V
Decreasing
Increasing
– V
PIN CONFIGURATION
SS
= 48V and V
PACKAGE DESCRIPTION
14-Lead (4mm × 3mm) Plastic DFN
14-Lead (4mm × 3mm) Plastic DFN
EXPOSED PAD (PIN 15) IS V
MIDSPAN
DD5
LEGACY
T
JMAX
14-LEAD (4mm 3mm) PLASTIC DFN
OSC
LED
V
V
V
not driven externally. All voltages are
SS
SS
SS
= 125°C, θ
1
2
3
4
5
6
7
l
l
l
l
l
l
l
l
l
l
DE14 PACKAGE
JA
TOP VIEW
= 43°C/W, θ
SS
MIN
15
0.1
0.2
4.5
4.3
33
29
66
, MUST BE SOLDERED TO PCB
JC
14
13
12
11
10
9
8
= 4.3°C/W
TYP
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
4.4
48
56
31
70
V
V
SD
V
OUT
OUT
ACOUT
5
1
2
1
DD5
SS
DD48
MAX
5.5
4.5
66
33
74
1
2
2
4
2
UNITS
42631fa
mA
mA
mA
V
V
V
V
V
V
V
V