LTC4269CDKD-1#PBF Linear Technology, LTC4269CDKD-1#PBF Datasheet - Page 2

• Manufacturer Part Number: LTC4269CDKD-1#PBF
• Description: IC PD/OPTO FLYBACK CTRLR 32-DFN
• Manufacturer: Linear Technology
• Type: Power Over Ethernet (PoE)r

Specifications of LTC4269CDKD-1#PBF

• Applications: Power Interface Switch for Power Over Ethernet (PoE) Devices
• Voltage - Supply: 14 V ~ 16 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 32-DFN
• Current - Supply: 1.35mA
• Interface: IEEE 802.3af
• Controller Type: Powered Device Interface Controller (PD)
• Input Voltage: 60V
• Supply Current: 6.4mA
• Digital Ic Case Style: DFN
• No. Of Pins: 32
• Duty Cycle (%): 88%
• Frequency: 100kHz
• Operating Temperature Range: 0°C To +70°C
• Msl: MSL 1 - Unlimited
• Rohs Compliant: Yes
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Pin Count: 32
• Mounting: Surface Mount
• Package Type: DFN EP
• Case Length: 7mm
• Screening Level: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ABSOLUTE MAXIMUM RATINGS
ORDER INFORMATION
LTC4269-1
(Notes 1, 2)
Pins with Respect to V
V
V
V
SHDN ....................................................... –0.3V to 100V
R
R
PWRGD Voltage (Note 3)
PWRGD, T2P Voltage ............................... –0.3V to 100V
PWRGD, T2P Sink Current .....................................10mA
Pins with Respect to GND
V
SENSE
UVLO, SYNC Voltage ...................................–0.3V to V
FB Current ..............................................................±2mA
V
Operating Ambient Temperature Range
LTC4269C-1 ................................................. 0°C to 70°C
LTC4269I-1 ..............................................–40°C to 85°C
LEAD FREE FINISH
LTC4269CDKD-1#PBF
LTC4269IDKD-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.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
2
PORTP
NEG
NEG
CC
CMP
CLASS
CLASS
Low Impedance Source ......V
Sink Current .........................................................5mA
Low Impedance Source ....................... –0.3V to +18V
Sink Current .......................................................30mA
(Note 3)
Voltage ......................................... –0.3V to V
Pull-Up Current ..................................................1A
Current .........................................................±1mA
–
, Voltage ............................................ –0.3V to 7V
Voltage ......................................... –0.3V to 100V
Source Current ...........................................50mA
, SENSE
+
Voltage ........................ –0.5V to +0.5V
TAPE AND REEL
LTC4269CDKD-1#TRPBF
LTC4269IDKD-1#TRPBF
PORTN
NEG
–0.3V to V
http://www.linear.com/leadfree/
PART MARKING*
42691
42691
http://www.linear.com/tapeandreel/
NEG
PORTP
+11V
CC
PIN CONFIGURATION
PACKAGE DESCRIPTION
32-Lead (7mm × 4mm) Plastic DFN
32-Lead (7mm × 4mm) Plastic DFN
GND, EXPOSED PAD (PIN 33) MUST BE SOLDERED TO A
HEAT SINKING PLANE THAT IS CONNECTED TO V
R
V
V
T
ENDLY
PORTN
PORTN
SHDN
CLASS
32-LEAD (7mm × 4mm) PLASTIC DFN
SYNC
JMAX
SFST
OSC
T2P
V
t
NC
NC
NC
SG
ON
FB
CC
= 125°C, θ
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
DKD32 PACKAGE
TOP VIEW
JA
33
= 34°C/W, θ
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
JC
= 2°C/W
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
V
NC
PWRGD
PWRGD
NC
V
V
NC
PG
PGDLY
R
C
SENSE
SENSE
UVLO
V
PORTP
NEG
NEG
CMP
CMP
CMP
+
–
NEG
42691fb