HC5549(1999) Просмотр технического описания (PDF) - Intersil
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Компоненты Описание
производитель
HC5549 Datasheet PDF : 13 Pages
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HC5549
Ordering Information (PLCC Package Only)
PART NUMBER
HC5549CM
HC5549IM
RING
2W
BAT POL DELAY LOOP
48V SW REV DRIVER BACK
•
•
•
•
•
•
•
•
•
•
LB = 53dB
•
•
TEMP.
RANGE oC
0 to 70
-40 to 85
PACKAGE
28 Ld PLCC
28 Ld PLCC
PACKAGE
NO.
N28.45
N28.45
Device Operating Modes
OPERATING MODE
Low Power Standby
F2
F1
F0
E0 = 1
E0 = 0
DESCRIPTION
0
0
0
SHD
GKD MTU compliant standby mode with active loop
detector.
Forward Active
Unused
Reverse Active
Ringing
Unused
Unused
Power Denial
0
0
1
SHD
GKD Forward battery loop feed.
0
1
0
n/a
n/a
Reserved internal test mode.
0
1
1
SHD
GKD Reverse battery loop feed.
1
0
0
RTD
RTD Enabler internal ring trip detector.
1
0
1
n/a
n/a
Reserved internal test mode.
1
1
0
n/a
n/a
Reserved internal test mode.
1
1
1
n/a
n/a
Device shutdown.
Pinouts
HC5549 (PLCC)
TOP VIEW
4 3 2 1 28 27 26
SW+ 5
25 RTD
SW- 6
24 CDC
SWC 7
23 VCC
F2 8
22 -IN
F1 9
21 VFB
F0 10
20 VTX
E0 11
19 VRX
12 13 14 15 16 17 18
4-81
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