DATASHEET
HC55185
VoIP Ringing SLIC Family
The RSLIC-VoIP family of
ringing subscriber line
interface circuits (RSLIC)
supports analog Plain Old
Telephone Service (POTS) in
short and medium loop length, wireless and wireline
applications. Ideally suited for remote subscriber units, this
family of products offers flexibility to designers with high
ringing voltage and low power consumption system
requirements.
The RSLIC-VoIP family operates to 100V, which translates
directly to the amount of ringing voltage supplied to the end
subscriber. With the high operating voltage, subscriber loop
lengths can be extended to 500 (i.e., 5,000 feet) and
beyond.
Other key features across the product family include: low
power consumption, ringing using sinusoidal or trapezoidal
waveforms, robust auto-detection mechanisms for when
subscribers go on or off hook, and minimal external discrete
application components. Integrated test access features are
also offered on selected products to support loopback
testing as well as line measurement tests.
There are five product offerings of the HC55185 with each
version providing voltage grades of high battery voltage and
longitudinal balance. The voltage feed amplifier design uses
low fixed loop gains to achieve high analog performance
with low susceptibility to system induced noise.
FN4831
Rev 15.00
February 9, 2012
Features
• Onboard Ringing Generation
• Compatible with Existing HC5518x Devices
• Low Standby Power Consumption (75V, 65mW)
• Reduced Idle Channel Noise
• Programmable Transient Current Limit
• Improved Off Hook Software Interface
• Integrated MTU DC Characteristics
• Low External Component Count
• Silent Polarity Reversal
• Pulse Metering and On Hook Transmission
• Tip Open Ground Start Operation
• Balanced and Unbalanced Ringing
• Thermal Shutdown with Alarm Indicator
• 28 Lead Surface Mount Packaging
• Reduced Footprint Micro Leadframe Packaging
• Dielectric Isolated (DI) High Voltage Design
• QFN Package Option
- Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat
No Leads - Product Outline
- Near Chip Scale Package Footprint; Improves PCB
Efficiency and has a Thinner Profile
• Pb-free (RoHS compliant)
Block Diagram
POL
ILIM
CDC
VBL
VBH
Applications
RINGING
PORT
DC
CONTROL
BATTERY
SWITCH
• Voice Over Internet Protocol (VoIP)
VRS
• Cable Modems
• Voice Over DSL (VoDSL)
TIP
RING
TL
2-WIRE
PORT
TRANSIENT
CURRENT
LIMIT
TRANSMIT
SENSING
4-WIRE
PORT
VRX
VTX
-IN
VFB
• Short Loop Access Platforms
• Remote Subscriber Units
• Terminal Adapters
SW+
SW-
TEST
ACCESS
DETECTOR
LOGIC
CONTROL
LOGIC
F2
F1
F0
Related Literature
•
AN9814,
“HC5518XEVAL Evaluation Board User’s Guide”
•
AN9824,
“SPICE Model Tutorial of the RSLIC18™ AC
Loop”
• Interfacing to DSP CODECs (Contact Factory)
•
TB379
“Thermal Characterization of Packaged
Semiconductor Devices”
•
AN9922,
“Thermal Characterization and Board Level
Modeling of the RSLIC18 in the MLFP Package”
RTD RD E0 DETALM
BSEL SWC
FN4831 Rev 15.00
February 9, 2012
Page 1 of 20
HC55185
Ordering Information
PART NUMBER
(Notes 2, 3)
HC55185AIMZ (Note 1)
HC55185BIMZ (Note 1)
HC55185CIMZ (Note 1)
HC55185DIMZ (Note 1)
PART
MARKING
HC55185 AIMZ
HC55185 BIMZ
HC55185 CIMZ
HC55185 DIMZ
HIGH BATTERY (VBH)
100V
85V
75V
LONGITUDINAL
BALANCE
58dB
53dB
FULL
TEST
TEMP.
RANGE (°C)
-40 to +85
-40 to +85
-40 to +85
-40 to +85
0 to +75
0 to +75
PACKAGE
(Pb-free)
PKG.
DWG. #
28 Ld PLCC N28.45
28 Ld PLCC N28.45
28 Ld PLCC N28.45
28 Ld PLCC N28.45
28 Ld PLCC N28.45
32 Ld QFN
L32.7x7
(Note 4)
HC55185ECMZ (Note 1) HC55185 ECMZ
HC55185ECRZ (Note 1)
HC55185FCMZ (Note 1)
HC55185FCRZ (Note 1)
HC55185GIMZ
HC55185GCMZ
HC55185 ECRZ
HC55185 FCMZ
HC55185 FCRZ
HC55185 GIMZ
HC55185 GCMZ
0 to +85
0 to +85
-40 to +85
28 Ld PLCC N28.45
32 Ld QFN
L32.7x7
(Note 4)
28 Ld PLCC N28.45
28 Ld PLCC N28.45
32 Ld QFN
L32.7x7
(Note 4)
0 to +85
0 to +85
HC55185GCRZ (Note 1) HC55185 GCRZ
NOTES:
1. Add "96" suffix for tape and reel. Please refer to
TB347
for details on reel specifications.
2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is 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-
020.
3. For Moisture Sensitivity Level (MSL), please see device information page for
HC55185.
For more information on MSL please see tech brief
TB363.
4. Reference “Special Considerations for the QFN Package” on page 8.
Device Operating Modes
MODE
Uncommitted
F2 F1 F0 E0 = 1 E0 = 0 Switch Logic HC55185A HC55185B HC55185C HC55185D HC55185E HC55185F HC55185G
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
SHD
SHD
RTD
SHD
RTD
SHD
SHD
n/a
GKD
GKD
RTD
GKD
RTD
GKD
GKD
n/a
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
Enabled
Disabled - off
Low Power Standby 0
Forward Active
0
Unbalanced Ringing 0
Reverse Active
Ringing
Forward Loop Back
Tip Open
Power Denial
0
1
1
1
1
FN4831 Rev 15.00
February 9, 2012
Page 2 of 20
HC55185
Pinouts
HC55185
(28 LD PLCC)
TOP VIEW
RING
BGND
ILIM
V
BH
V
BL
V
BH
RD
V
BL
TIP
HC55185
(32 LD QFN)
TOP VIEW
BGND
RING
TIP
NC
NC
4
SW+
SW-
SWC
F2
F1
F0
E0
5
6
7
8
9
10
11
12
DET
3
2
1
28
27
26
25
24
23
22
21
20
19
RTD
CDC
V
CC
-IN
VFB
VTX
VRX
SW+
SW-
SWC
F2
F1
F0
E0
NC
1
2
3
4
5
6
7
8
32 31 30
29 28
27 26 25
24 ILIM
23 RTD
22 CDC
21 V
CC
20 -IN
19 VFB
18 VTX
17 VRX
13
ALM
14
AGND
15
BSEL
16
TL
17
POL
18
VRS
9
DET
10 11
ALM
AGND
12 13 14 15 16
TL
BSEL
VRS
POL
NC
FN4831 Rev 15.00
February 9, 2012
Page 3 of 20
RD
HC55185
Absolute Maximum Ratings
T
A
= +25°C
Maximum Supply Voltages
V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +7V
V
CC
- V
BH
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110V
Uncommitted Switch Voltage . . . . . . . . . . . . . . . . . . . . . . . . -110V
Maximum Tip/Ring Negative Voltage Pulse (Note 5) . . . . . . VBH -15V
Maximum Tip/Ring Positive Voltage Pulse (Note 5) . . . . . . . . . . . .+8V
ESD (Human Body Model). . . . . . . . . . . . . . . . . . . . . . . . . . . . 500V
Thermal Information
Thermal Resistance (Typical)
JA
(°C/W)
JC
(°C/W)
PLCC (Note 6) . . . . . . . . . . . . . . . . . . .
53
N/A
QFN (Notes 7, 8) . . . . . . . . . . . . . . . . .
25
0.5
Maximum Junction Temperature Plastic . . . . . . . . . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . -65°C to +150°C
Pb-Free Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
For Recommended soldering conditions see Tech Brief
TB389
Operating Conditions
Temperature Range
Commercial (C suffix) . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +85°C
Industrial (I suffix). . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C
Positive Power Supply (V
CC
). . . . . . . . . . . . . . . . . . . . . . . +5V,
5%
Low Battery Power Supply (V
BL
) . . . . . . . . . . . . . -16V to -52V,
5%
High Battery Power Supply (V
BH
)
AIM, CIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
BL
to 100V,
5%
BIM, DIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
BL
to -85V,10%
EIM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
BL
to -75V,10%
Uncommitted Switch (loop back or relay driver) . . . . . +5V to -100V
Die Characteristics
Substrate Potential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
BH
Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bipolar-DI
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTES:
5. Characterized with 2 x 10s, and 10 x 1000s first level lightning surge waveforms (GR-1089-CORE).
6.
JA
is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief
TB379
for details.
7.
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief
TB379.
8. For
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
Unless Otherwise Specified, T
A
= -40°C to +85°C for industrial (I) grade and T
A
= 0°C to +85°C for commercial (C)
grade, V
BL
= -24V, V
BH
= -100V, -85V or -75V, V
CC
= +5V, AGND = BGND = 0V, loop current limit = 25mA. All AC
parameters are specified at 600 2-wire terminating impedance over the frequency band of 300Hz to 3.4kHz.
Protection resistors = 0.
Boldface limits apply over the operating temperature range.
TEST CONDITIONS
MIN
(Note 14)
TYP
MAX
(Note 14) UNITS
PARAMETER
RINGING PARAMETERS
VRS Input Impedance (Note 9)
Differential Ringing Gain (Note 10)
450
Balanced Ringing, VRS to 2-Wire, R
LOAD
=
Unbalanced Ringing, VRS to 2-Wire, R
LOAD
=
78
-
80
40
-
82
k
V/V
V/V
Centering Voltage Accuracy
Tip, Referenced to V
BH
/2 + 0.5 (Note 13)
Ring, Referenced to V
BH
/2 + 0.5
-
-
-
± 2.5
± 2.5
67
33.5
-
-
-
V
V
V
RMS
V
RMS
Open Circuit Ringing Voltage
Balanced Ringing, VRS Input = 0.840V
RMS
Unbalanced Ringing, VRS Input = 0.840V
RMS
Ringing Voltage Total Distortion
4-Wire to 2-Wire Ringing Off Isolation
2-Wire to 4-Wire Transmit Isolation
AC TRANSMISSION PARAMETERS
Receive Input Impedance (Note 9)
Transmit Output Impedance (Note 9)
4-Wire Port Overload Level (Note 9)
R
L
= 1.3 k, V
T-R
= |V
BH
| -5
Active Mode, Referenced to VRS Input
Ringing Mode Referenced to the Differential
Ringing Amplitude
-
-
-
-
90
80
4.0
-
-
%
dB
dB
160
-
THD = 1%
3.1
-
-
3.5
-
1
-
k
V
PEAK
FN4831 Rev 15.00
February 9, 2012
Page 4 of 20
HC55185
Electrical Specifications
Unless Otherwise Specified, T
A
= -40°C to +85°C for industrial (I) grade and T
A
= 0°C to +85°C for commercial (C)
grade, V
BL
= -24V, V
BH
= -100V, -85V or -75V, V
CC
= +5V, AGND = BGND = 0V, loop current limit = 25mA. All AC
parameters are specified at 600 2-wire terminating impedance over the frequency band of 300Hz to 3.4kHz.
Protection resistors = 0.
Boldface limits apply over the operating temperature range. (Continued)
TEST CONDITIONS
THD = 1%
300Hz
1kHz
3.4kHz
2-Wire Longitudinal Balance (Note 11)
Forward Active, Grade A and B
Forward Active, Grade C, D and E
4-Wire Longitudinal Balance (Note 11)
Forward Active, Grade A and B
Forward Active, Grade C, D and E
2-Wire to 4-Wire Level Linearity
4-Wire to 2-Wire Level Linearity
Referenced to -10dBm
Longitudinal Current Capability Per Wire (Note 9)
+3 to -40dBm, 1kHz
-40 to -50dBm, 1kHz
-50 to -55dBm, 1kHz
Test for False Detect
Test for False Detect, Low Power Standby
4-Wire to 2-Wire Insertion Loss
2-Wire to 4-Wire Insertion Loss
4-Wire to 4-Wire Insertion Loss
Forward Active Idle Channel Noise
2-Wire C-Message, T = +25°C
4-Wire C-Message, T = +25°C
Reverse Active Idle Channel Noise
2-Wire C-Message, T = +25°C
4-Wire C-Message, T = +25°C
DC PARAMETERS
Off Hook Loop Current Limit
Programming Accuracy
Programming Range
Off Hook Transient Current Limit
Programming Accuracy
Programming Range
Loop Current During Low Power Standby
Open Circuit Voltage (|Tip - Ring|)
Forward Polarity Only
V
BL
= -16V
V
BL
= -24V
V
BH
> -60V
Low Power Standby, Open Circuit Voltage
(Tip - Ring)
Absolute Open Circuit Voltage
TEST ACCESS FUNCTIONS
Switch On Voltage
Loopback Max Battery
LOOP DETECTORS AND SUPERVISORY FUNCTIONS
Switch Hook Programming Range
5
-
15
mA
I
OL
= 45mA; All modes except Power Denial
-
-
0.30
-
0.60
52
V
V
V
BL
= -48V
V
BH
> -60V
V
RG
in LPS and FA; V
TG
in RA; V
BH
> -60V
-8.5
15
-10
40
18
-
14
43
-
43
-
-
-
-
-
-
8.0
15.5
49
44.5
51.5
-53
+8.5
45
+10
100
26
-
17
-
-
-
-56
%
mA
%
mA
mA
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
MIN
(Note 14)
3.1
-
-
-
58
53
58
53
-
-
-
20
10
-0.20
-6.22
-6.22
-
-
-
-
TYP
3.5
24
40
21
62
59
67
64
±0.025
±0.050
±0.100
-
-
0.00
-6.02
-6.02
10
4
11
5
MAX
(Note 14) UNITS
-
-
1
PARAMETER
2-Wire Port Overload Level (Note 9)
2-Wire Return Loss
V
PEAK
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
mA
RMS
mA
RMS
dB
dB
dB
dBrnC
dBrnC
dBrnC
dBrnC
-
-
-
-
-
-
-
-
-
-
-
+0.20
-5.82
-5.82
13
7
14
8
FN4831 Rev 15.00
February 9, 2012
Page 5 of 20
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