HC55180 Datasheet, PDF (16/19 Pages) Intersil Corporation – Extended Reach Ringing SLIC Family

HC55180, HC55181, HC55182, HC55183, HC55184
Basic Application Circuits
C_PS1
C_PS3
R_P1
R_P2
C_RT
R_RT
R_SH
R_IL
V_CC
C_DC
C_POL
VCC VBL VBH
VRX
TIP
U_{1 VRS}
HC55180
RING
VTX
RTD
RD
ILIM
CDC
POL
-IN
VFB
E0
F0
F1
F2
DET
ALM
C_RX
C_RS
C_TX
R_S
C_FB
AGND
BGND
FIGURE 14. HC55180 BASIC APPLICATION CIRCUIT
TABLE 2. BASIC APPLICATION CIRCUIT COMPONENT LIST
COMPONENT
VALUE
TOLERANCE
RATING
U1 - Ringing SLIC
HC5518x
N/A
N/A
R_RT
R_SH
R_IL
R_S
C_RX, C_RS, C_TX, C_RT, C_POL, C_FB
C_DC
C_PS1
C_PS2, C_PS3
D₁
R_P1, R_P2
20kΩ
1%
0.1W
49.9kΩ
1%
0.1W
71.5kΩ
1%
0.1W
210kΩ
1%
0.1W
0.47µF
20%
10V
4.7µF
20%
10V
0.1µF
20%
>100V
0.1µF
20%
100V
1N400X type with breakdown > 100V.
Protection resistor values are application dependent and will be determined by protection re-
quirements. Standard applications will use ≥ 35Ω per side.
Design Parameters: Ring Trip Threshold = 90mA_PEAK, Switch Hook Threshold = 12mA, Loop Current Limit = 24.6mA, Synthesize Device Im-
pedance = 210kΩ/400 = 525Ω, with 39Ω protection resistors, impedance across Tip and Ring terminals = 603Ω. Where applicable, these compo-
nent values apply to the Basic Application Circuits for the HC55180, HC55181, HC55182, HC55183 and HC55184. Pins not shown in the Basic
Application Circuit are no connect (NC) pins.
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