HC55185ECM Intersil, HC55185ECM Datasheet - Page 17

• Manufacturer Part Number: HC55185ECM
• Manufacturer: Intersil

Specifications of HC55185ECM

• Number Of Channels: 1
• On-hook Transmission: Yes
• Polarity Reversal: Yes
• On-chip Ring Relay Driver: Yes
• Longitudinal Balanced: 64
• Operating Supply Voltage (typ): 5/-18/-24/-28V
• Operating Temp Range: 0C to 85C
• Package Type: PLCC
• Loop Current Limit: 45mA
• Operating Temperature Classification: Commercial
• Pin Count: 28
• Mounting: Surface Mount
• Operating Current: 10.3mA
• Operating Supply Voltage (max): 5.25/-52V
• Operating Supply Voltage (min): 4.75/-16V
• Lead Free Status / RoHS Status: Not Compliant

Basic Application Circuit
V
CC
FIGURE 15. HC55185 BASIC APPLICATION CIRCUIT
R
R
P2
P1
C
C
R
R
C
PS3
R
R
C
RT
RT
SH
POL
IL
TL
DC
C
PS2
C
PS1
TIP
RING
SW+
SW-
RTD
RD
ILIM
CDC
POL
TL
AGND
VCC VBL VBH
HC55185
U
17
1
BGND
BSEL
SWC
ALM
VRX
VRS
VFB
DET
VTX
-IN
E0
F0
F1
F2
D
1
R
S
C
C
C
C
RX
RS
FB
TX
HC55185
U1 - Ringing SLIC
R
R
R
R
R
C
C
C
C
D
R
Standard applications will use ≥ 49Ω per side. Protection resistor
values are application dependent and will be determined by
protection requirements.
Design Parameters: Ring Trip Threshold = 76mA
Hook Threshold = 12mA, Loop Current Limit = 24.6mA, Synthesize
Device Impedance = (3*66.5kΩ)/400 = 498.8Ω, with 49.9Ω
protection resistors, impedance across Tip and Ring
terminals = 599Ω. Transient current limit = 95mA.
TL
RT
SH
IL
S
RX
DC
PS1
PS2
1
P1
TABLE 4. BASIC APPLICATION CIRCUIT COMPONENT
, R
, C
, C
, C
P2
COMPONENT
RS
FB
PS3
, C
LIST
TX
, C
RT
, C
POL
1N400X type with breakdown > 100V.
HC55185
VALUE
18.7kΩ
23.7kΩ
49.9kΩ
71.5kΩ
66.5kΩ
0.47μF
4.7μF
0.1μF
0.1μF
TOL
20%
20%
20%
20%
N/A
1%
1%
1%
1%
1%
PEAK
December 18, 2006
, Switch
RATING
>100V
FN4831.14
0.1W
0.1W
0.1W
0.1W
0.1W
100V
N/A
10V
10V