2

FN4539.3

Pinout

HC5549 (PLCC)

TOP VIEW

Ordering Information (PLCC Package Only)

PART NUMBER

48V

BAT

SW

POL

REV

RING

DELAY

DRIVER

2W

LOOP

BACK

LB = 53dB

TEMP.

RANGE °C

PACKAGE

PKG.

DWG. #

HC5549CM

••

•

•

•

•

0 to 70

28 Ld PLCC

N28.45

HC5549CMZ (Note)

••

•

•

•

•

0 to 70

28 Ld PLCC (Pb-free) N28.45

HC5549IM

••

•

•

•

•

-40 to 85

28 Ld PLCC

N28.45

NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination

finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at

Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020C.

Device Operating Modes

OPERATING MODE

F2

F1

F0

E0 = 1

E0 = 0

DESCRIPTION

Low Power Standby

0

0

0

SHD

GKD

MTU compliant standby mode with active loop

detector.

Forward Active

0

0

1

SHD

GKD

Forward battery loop feed.

Unused

0

1

0

n/a

n/a

Reserved internal test mode.

Reverse Active

0

1

1

SHD

GKD

Reverse battery loop feed.

Ringing

1

0

0

RTD

RTD

Enabler internal ring trip detector.

Unused

1

0

1

n/a

n/a

Reserved internal test mode.

Unused

1

1

0

n/a

n/a

Reserved internal test mode.

Power Denial

1

1

1

n/a

n/a

Device shutdown.

RTD

CDC

VRX

-IN

VFB

VTX

SW-

E0

SW+

SWC

F2

F1

F0

5

6

7

8

9

10

11

12 13

14 15 16 17 18

1

2

3

4

19

20

21

22

23

24

25

26

27

28

HC5549