LT3478/LT3478-1

2

34781f

SW ............................................................................42V

PWM.........................................................................15V

CTRL1, 2.....................................................................6V

Operating Junction Temperature Range

(Notes 2, 3, 4).................................... –40°C to 125°C

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

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

(Note 1)

ELECTRICAL CHARACTERISTICS

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

FE PACKAGE

16-LEAD PLASTIC TSSOP

1

2

3

4

5

6

7

8

TOP VIEW

16

15

14

13

12

11

10

9

17

SW

SW

L

LED

OVPSET

SS

PWM

CTRL2

CTRL1

SHDN

EXPOSED PAD (PIN 17) IS PGND, MUST BE SOLDERED TO PCB.

ORDER PART NUMBER

FE PART MARKING

LT3478EFE

LT3478EFE-1

LT3478IFE

LT3478IFE-1

3478FE

3478FE-1

3478FE

3478FE-1

Order Options Tape and Reel: Add #TR

Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF

Lead Free Part Marking: http://www.linear.com/leadfree/

Consult LTC Marketing for parts specified with wider operating temperature ranges.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Operating Voltage

(Rising)

●

2.4

2.8

V

Operational Input Voltage

2.8

2.8

36

36

V

V

6.1

mA

⎯S⎯H⎯D⎯N = 0V

3

6

µA

(Micropower)

●

0.1

0.4

0.7

V

(Switching)

1.3

1.4

1.5

V

⎯S⎯H⎯D⎯N Pin Current

810

0

12

µA

µA

●

1.213

1.240

1.263

V

0.005

0.015

%/V

8

12

mV

0.18

0.2

0.22

MHz

●

0.88

1.12

MHz