LTC4264IDE#PBF Linear Technology, LTC4264IDE#PBF Datasheet - Page 2

• 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: -

ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
LTC4264
(Notes 1, 2)
V
V
SHDN Voltage ............................ V
R
PWRGD Voltage (Note 3)
PWRGD Voltage ......................... V
PWRGD Current .....................................................10mA
R
Operating Ambient Temperature Range
Junction Temperature ........................................... 150°C
Storage Temperature Range ................... –65°C to 150°C
temperature range, otherwise specifi cations are at T
SYMBOL
V
I
I
ΔI
t
R
R
V
V
R
V
2
IN_ON
IN_CLASS
CLASSRDY
IN
IH_SHDN
IL_SHDN
IH_ILIM
SIGNATURE
INVALID
INPUT_SHDN
IN
OUT
CLASS
CLASS
CLASS
Low Impedance Source ....V
Current Fed ..........................................................5mA
LTC4264C ................................................ 0°C to 70°C
LTC4264I ............................................. –40°C to 85°C
Voltage ................................................. 0.3V to –90V
Voltage ......... V
, I
Current .....................................................100mA
LIM_EN
PARAMETER
Supply Voltage
IC Supply Current when On
IC Supply Current During Classifi cation
Current Accuracy During Classifi cation
Classifi cation Stability Time
Signature Resistance
Invalid Signature Resistance
SHDN High Level Input Voltage
SHDN Low Level Input Voltage
SHDN Input Resistance
I
LIM_EN
IEEE 802.3af System
Signature Range
Classifi cation Range
UVLO Turn-On Voltage
UVLO Turn-Off Voltage
Voltage ............... V
High Level Input Voltage
IN
+ 90V (and ≤ GND) to V
OUT
IN
IN
+ 11V to V
IN
+ 90V to V
+ 80V to V
+ 7V to V
CONDITIONS
Voltage with Respect to GND Pin
(Notes 5, 6, 7, 8)
V
V
10mA < I
(Notes 10,11)
V
Ideal, 10mA < I
–1.5V ≤ V
Measurement, SHDN Tied to V
–1.5V ≤ V
Measurement, SHDN Tied to GND (Notes 6, 7)
With Respect to V
(Note 12)
With Respect to V
With Respect to V
With Repect to V
Limit (Note 13)
A
OUT
IN
IN
IN
= 25°C. (Note 4)
IN
IN
IN
IN
= –54V
= –17.5V (Note 9)
Stepped 0V to –17.5V, I
– 0.3V
– 0.3V
– 0.3V
– 0.3V
– 0.3V
The
CLASS
IN
IN
≤ –10.1V, IEEE 802.3af 2-Point
≤ –10.1V, IEEE 802.3af 2-Point
●
denotes the specifi cations which apply over the full operating
CLASS
< 75mA, –12.5V ≤ V
IN
IN
IN
IN
, High Level Enables Current
, High Level = Shutdown
PACKAGE/ORDER INFORMATION
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.
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking:
< 75mA (Notes 10, 11)
ORDER PART NUMBER
IN_CLASS
LTC4264CDE
LTC4264IDE
IN
(Notes 6, 7)
IN
≤3.5% of
≤ –21V
EXPOSED PAD (PIN 13) MUST BE SOLDERED TO
T
I
R
LIM_EN
JMAX
SHDN
AN ELECTRICALLY ISOLATED HEAT SINK
CLASS
12-LEAD (4mm × 3mm) PLASTIC DFN
V
V
NC
IN
IN
= 150°C, θ
http://www.linear.com/leadfree/
1
2
3
4
5
6
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
DE12 PACKAGE
TOP VIEW
JA
= 43°C/W, θ
–12.5
–37.7
–29.8
23.25
13
MIN
–1.5
0.55
100
3
4
DE PART MARKING*
12
11
10
9
8
7
JC
–38.9
–30.6
= 4.3°C/W
0.62
TYP
GND
NC
PWRGD
PWRGD
V
V
10
OUT
OUT
4264
4264
–10.1
–40.2
–31.5
26.00
MAX
0.70
±3.5
11.8
0.45
–57
–21
57
3
1
UNITS
4264f
mA
mA
ms
kΩ
kΩ
kΩ
%
V
V
V
V
V
V
V
V