I
NTEGRATED
C
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D
IVISION
Features
•
Meets wetting (sealing) current requirements per
ITU G.992.3 Annex 14.1 Region A
•
Integrated bridge rectifier for polarity correction
•
Uses inexpensive optocoupler for DC sealing current
monitoring
•
Electronic inductor, breakover, and latch circuits
•
Current limiting and excess power protection circuits
•
ADSL/VDSL compatible with low-pass filter network
•
MLT and SARTS compatible
•
Compatible with portable test sets
•
Small SOIC or DFN Package
•
DFN package 60 percent smaller than SOIC
•
Flammability rating UL 94 V-0
Broadband ADSL/VDSL
DC Termination IC
Description
The CPC1466 is a DC Termination IC for broadband
ADSL/VDSL applications. The high-voltage,
monolithic device provides a termination for DC
wetting (sealing) current in customer premises
equipment (CPE) to eliminate phone line corrosion on
DSL twisted-pair copper lines without telephone voice
services (i.e. only broadband services).
Internally, a bridge rectifier provides a
polarity-insensitive DC termination for DSL loop
sealing current. The IC includes an electronic inductor,
break-over and latch circuits, current limit and excess
power protection. A sealing current detect output
provides the means to monitor the loop for the
presence of sealing current.
The CPC1466 is manufactured in IXYS Integrated
Circuits’ high voltage BCDMOS process that is used
extensively in telephony applications worldwide.
CPC1466
Applications
•
•
•
•
•
ADSL/VDSL broadband modems
Router and bridge customer premises equipment
Leased line equipment
Mechanized Loop Test (MLT) networks
Switched Access Remote Test System (SARTS)
networks
Ordering Information
Part Number Description
DC Termination IC, 16-pin SOIC in tubes,
47/tube
DC Termination IC, 16-pin SOIC tape and reel,
CPC1466DTR
1000/reel
DC Termination IC, 16-pin DFN in tubes,
CPC1466M
52/tube
DC Termination IC, 16-pin DFN tape and reel,
CPC1466MTR
1000/reel
CPC1466D
Figure 1. CPC1466 Block Diagram
1
2
3
4
5
6
7
8
PR+
NC
TIP
NC
NC
RING
NC
PR-
Bridge
Rectifier
TC
16
15
14
13
12
11
10
9
Electronic
Inductor,
Breakover,
Latch, and
Opto Driver
NC
NC
RS
NC
PD
NC
Current Limit
and Excess
Power Protection
COM
DS-CPC1466-R03
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NTEGRATED
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CPC1466
1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Package Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4.1 DC Characteristics, Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4.2 AC Characteristics, Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4.3 Transition Characteristics, Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5 Sealing Current Monitor Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5.1 LED Trigger Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Surge Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Bridge Rectifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 State Transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4.1 Activation - On-State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4.2 Deactivation - Off-State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5 Photo-Diode (PD) Output Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6 On-State Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6.1 Typical Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6.2 Over-Voltage Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. Manufacturing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Mechanical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.1 CPC1466M 16-Pin DFN Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.2 CPC1466MTR 16-Pin DFN Tape & Reel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.3 CPC1466D 16-Pin SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4 CPC1466DTR 16-Pin SOIC Tape & Reel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
3
3
3
4
4
4
4
8
8
10
10
10
10
10
10
10
11
11
11
11
12
13
13
13
14
14
2
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NTEGRATED
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IVISION
1. Specifications
1.1 Package Pinout
1.2 Pin Description
Pin
1
PR+
NC
TIP
NC
NC
RING
NC
PR-
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
TC
NC
NC
RS
NC
PD
NC
COM
CPC1466
Name
PR+
NC
TIP
NC
NC
NC
PR-
COM
NC
PD
NC
RS
NC
NC
TC
Description
Protection resistor positive side
No connection
Tip Lead
No connection
No connection
No connection
Protection resistor negative side
Common
No connection
Photo-diode (LED input current)
No connection
Current limiting resistor
No connection
No connection
Timing capacitor
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
RING Ring lead
1.3 Absolute Maximum Ratings
Parameter
Maximum Voltage
(T to R, R to T)*
Power dissipation
Operating temperature
Operating relative humidity
Storage temperature
Minimum Maximum Unit
-
-
-40
5
-40
300
1
+85
95
+125
V
W
°C
%
°C
Electrical absolute maximum ratings are at 25C.
Absolute maximum ratings are stress ratings. Stresses in
excess of these ratings can cause permanent damage to
the device. Functional operation of the device at conditions
beyond those indicated in the operational sections of this
data sheet is not implied.
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NTEGRATED
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1.4 Electrical Characteristics
CPC1466
Unless otherwise specified, minimum and maximum values are guaranteed by production testing requirements.
Typical values are characteristic of the device and are the result of engineering evaluations. In addition, typical values
are provided for informational purposes only and are not part of the testing requirements.
All electrical specifications are provided for T
A
=25C
1.4.1 DC Characteristics, Normal Operation
For operational templates:
(see Figure 2 on page 5)
and
(see Figure 3 on page 5).
Parameter
Activate/Non-activate Voltage
Breakover current
DC Voltage drop
DC leakage current
Hold/Release current
Minimum on current
V
OFF
= 20 V
Active State
V
ON
< 54 V
54 V
V
ON
100 V for 2 seconds,
source resistance 200
to 4 k
V
ON
> 100 V
Maximum on current
V
ON
70 V
V
ON
> 70 V
Photodiode drive current
Active State
Off State
-
Active State, 1 mA
I
SL
20 mA
Conditions
Symbol
V
AN
I
BO
V
ON
I
LKG
I
H/R
I
MIN1
I
MIN2
I
MIN3
I
MAX1
I
MAX2
I
PD
Minimum
30.0
-
-
-
0.1
20
9.0
0
-
-
0.2
Typical
35.0
0.5
12.5
1.5
0.5
38
45
0.1
38.4
-
0.3
Maximum
39.0
1
15
5
1.0
-
-
-
70
V
ON
----------
-
1k
Unit
V
mA
V
A
mA
mA
mA
mA
mA
mA
mA
10
1.4.2 AC Characteristics, Normal Operation
For test conditions:
(see Figure 4 on page 6).
Parameter
AC impedance
Linearity distortion
Conditions
200 Hz to 50 kHz
f= 200 Hz to 40 kHz, I
SL
= 1 mA to
20 mA, V
APP
12 V
PP
Symbol
Z
MT
D
Minimum
10
40
Typical
38
70
Maximum
-
Unit
k
dB
-
1.4.3 Transition Characteristics, Normal Operation
For activation/deactivation test conditions:
(see Figure 5 on page 7).
Parameter
Activate time
Deactivate time
4
Conditions
(see Figure 6 on page 7)
(see Figure 7 on page 7)
Symbol
t1
t2
Minimum
3.0
3.0
Typical
13
-
Maximum
50
100
Unit
ms
ms
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Figure 2. I-V Requirements Template, 0 V to 50 V
CPC1466
1A
100 mA
V
ON
10 mA
On State
I
MIN1
V
AN
Transition
Region
I
HR
I
BO
I
MAX1
Current
1 mA
100
µ
A
10
µ
A
1
µ
A
0
0
10
20
30
Off State
I
LKG
Transition
Region
40
50
Absolute Voltage (V)
Figure 3. I-V Requirements Template, 0 V to 250 V
1A
I
MAX1
100 mA
10 mA
54 V, 9 mA
I
MIN1
I
MIN2
70 V, 70 mA
I
MAX2
Current
1 mA
100
µ
A
10
µ
A
1
µ
A
100 V, 0 mA
0
0
50
100
150
200
250
Absolute Voltage (V)
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