Linear Technology DC1814A-B LTC4274A-2: LTPoE++ (52.7W) PSE (req. DC2093) DC1814A-B DC1814A-B Data Sheet
Product codes
DC1814A-B
LTC4274A/LTC4274C
2
4274acfc
ABSOLUTE MAXIMUM RATINGS
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
MAX PWR
TEMPERATURE RANGE
LTC4274CIUHF#PBF
LTC4274CIUHF#TRPBF
4274C
38-Lead (5mm × 7mm) Plastic QFN
13W
–40°C to 85°C
LTC4274AIUHF-1#PBF
LTC4274AIUHF-1#TRPBF
4274A1
38-Lead (5mm × 7mm) Plastic QFN
38.7W
–40°C to 85°C
LTC4274AIUHF-2#PBF
LTC4274AIUHF-2#TRPBF
4274A2
38-Lead (5mm × 7mm) Plastic QFN
52.7W
–40°C to 85°C
LTC4274AIUHF-3#PBF
LTC4274AIUHF-3#TRPBF
4274A3
38-Lead (5mm × 7mm) Plastic QFN
70W
–40°C to 85°C
LTC4274AIUHF-4#PBF
LTC4274AIUHF-4#TRPBF
4274A4
38-Lead (5mm × 7mm) Plastic QFN
90W
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based finish parts.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/
13 14 15 16
TOP VIEW
V
EE
39
UHF PACKAGE
38-LEAD (5mm
= 7mm) PLASTIC QFN
EXPOSED PAD IS V
EE
(PIN 39) MUST BE SOLDERED TO PCB
T
JMAX
= 125°C,
e
JA
= 34°C/W
17 18 19
38 37 36 35 34 33 32
24
25
26
27
28
29
30
31
8
7
6
5
4
3
2
1
SDAOUT
NC
SDAIN
AD3
AD2
AD1
AD0
DNC
NC
DGND
NC
NC
GATE
SENSE
NC
NC
V
EE
V
EE
V
EE
NC
NC
V
EE
NC
NC
SCL
INT
MID
RESET
MSD
AUTO
OUT
V
DD
SHDN
DGND
DGND
DGND
AGND
V
EE
23
22
21
20
9
10
11
12
Supply Voltages (Note 1)
AGND – V
EE
........................................... –0.3V to 80V
DGND – V
EE
........................................... –0.3V to 80V
V
DD
– DGND ......................................... –0.3V to 5.5V
Digital Pins
SCL, SDAIN, SDAOUT, INT, SHDN, MSD, AD,
RESET, AUTO, MID ........... DGND –0.3V to V
DD
+ 0.3V
Analog Pins
GATE, SENSE, OUT ................ V
EE
–0.3V to V
EE
+ 80V
Operating Temperature Range ................. –40°C to 85°C
Junction Temperature (Note 2) ............................. 125°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ................... 300°C
Junction Temperature (Note 2) ............................. 125°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ................... 300°C