LTC4263-1 datasheet(2/20 Pages) LINER

Part #	LTC4263-1

Description	High Power Single PSE Controller with Internal Switch

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTC4263-1

2

42631fa

ELECTRICAL CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS

Supply Voltages

VSS – VDD48 ........................................... 0.3V to –80V

VDD5........................................VSS – 0.3V to VSS + 6V

Pin Voltages and Currents

LEGACY, MIDSPAN, SD, OSC ..VSS – 0.3V to VSS +6V

LED.......................................VSS – 0.3V to VSS + 80V

OUT, ACOUT............................................ (See Note 3)

Operating Ambient Temperature Range

LTC4263CDE-1............................................ 0°C to 70°C

LTC4263IDE-1 ......................................... –40°C to 85°C

Junction Temperature (Note 4) ............................. 125°C

Storage Temperature Range................... –65°C to 150°C

Lead Temperature (Soldering, 10 sec) .................. 300°C

(Note 1, Note 2)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Power Supplies

VSUPPLY

Supply Voltage

VDD48 – VSS

30W Output Power

l

33

48

56

66

V

VUVLO_OFF

UVLO Turn-Off Voltage

VDD48 – VSS Decreasing

l

29

31

33

V

VUVLO_HYS

UVLO Hysteresis

l

0.1

1

V

VOVLO_OFF

OVLO Turn-Off Voltage

VDD48 – VSS Increasing

l

66

70

74

V

VOVLO_HYS

OVLO Hysteresis

l

0.2

2

V

VDD5

VDD5 Supply Voltage

Driven Externally

l

4.5

5

5.5

V

VDD5 Internal Supply

Driven Internally

l

4.3

4.4

4.5

V

IDD48

VDD48 Supply Current

VDD5 – VSS = 5V

Internal VDD5

l

1

2

4

mA

IDD5

VDD5 Supply Current

VDD5 – VSS = 5V

l

12

mA

The

l denotes the speciﬁcations which apply over the full operating

temperature range, otherwise speciﬁcations are at TA = 25°C. VDD48 – VSS = 48V and VDD5 not driven externally. All voltages are

relative to VSS unless otherwise noted. (Note 2, Note 5)

PIN CONFIGURATION

1

2

3

4

5

6

7

14

13

12

11

10

9

8

15

VDD5

VSS

SD

VDD48

OUT

ACOUT

LED

LEGACY

MIDSPAN

VSS

OSC

TOP VIEW

DE14 PACKAGE

14-LEAD (4mm

3mm) PLASTIC DFN

TJMAX = 125°C, θJA = 43°C/W, θJC = 4.3°C/W

EXPOSED PAD (PIN 15) IS VSS, MUST BE SOLDERED TO PCB

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC4263CDE-1#PBF

LTC4263IDE-1#PBF

LTC4263CDE-1#TRPBF

LTC4263IDE-1#TRPBF

42631

14-Lead (4mm

× 3mm) Plastic DFN

14-Lead (4mm

× 3mm) Plastic DFN

0°C to 70°C

–40°C to 85°C

Consult LTC Marketing for parts speciﬁed with wider operating temperature ranges. *The temperature grade is identiﬁed by a label on the shipping container.

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/

ORDER INFORMATION

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