LTC4249

2

Rev. 0

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PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

Input Voltages

IN1, IN2.................................................. –0.3V to 72V

EN1, EN2 (Note 5)................................. –0.3V to 5.5V

Output Voltages

OUT1, OUT2........................................... –0.3V to 72V

RDY1, RDY2.......................................... –0.3V to 5.5V

IMON1, IMON2...................................... –0.3V to 2.7V

(Notes 1, 2, 3, 4)

17

GND

12

11

10

9

1

2

3

4

16 15 14 13

5

6

7

8

EN1

IMON1

IMON2

EN2

RDY1

GND

RDY2

TOP VIEW

LQFN PACKAGE

16-LEAD (3mm × 3mm × 0.95mm)

EXPOSED PAD (PIN 17) IS GND, CONNECT TO PCB THERMAL PLANE

21

GND

15

14

13

12

2

3

4

5

20

17

7

10

EN1

IMON1

IMON2

EN2

RDY1

GND

RDY2

TOP VIEW

LQFN PACKAGE

20(12)-LEAD (3mm × 4mm × 0.95mm)

EXPOSED PAD (PIN 21) IS GND, CONNECT TO PCB THERMAL PLANE.

INCREASED SPACING TO IN AND OUT FOR HIGH VOLTAGE CLEARANCE

ORDER INFORMATION

TRAY

PART MARKING

PACKAGE DESCRIPTION

FAULT RESPONSE

TEMPERATURE RANGE

LTC4249AV-1#PBF

LHMZ

16-Lead (3mm × 3mm × 0.95mm) LQFN Package

Latch Off

–40°C to 125°C

LTC4249AV2-1#PBF

4249

20(12)-Lead (3mm × 4mm × 0.95mm) LQFN Package

Latch Off

–40°C to 125°C

Contact the factory for parts specified with wider operating temperature ranges.

Input Currents

IN1, IN2...................................................................3A

Output Currents

OUT1, OUT2..........................................................–3A

RDY1, RDY2 ......................................................10mA

IMON1, IMON2...................................................–1mA

Operating Junction Temperature Range

LTC4249A .......................................... –40°C to 125°C

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