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CPC5712U

P1-P3P4-P6P7-P9P10-P11
I
NTEGRATED
C
IRCUITS
D
IVISION
DS-CPC5712-R02 www.ixysic.com 1
CPC5712
Voltage Monitor with Detectors
e
3
Pb
Features
• CPC5712 Outputs:
• Two Independent Programmable Level Detectors
with Programmable Hysteresis
• Fixed-Level Polarity Detector with Hysteresis
• Differential Linear Output
• Minimum External Components
• Excellent Common-Mode Rejection Ratio
(CMRR) >
55dB
• Application circuits meet isolation requirements of
worldwide telephony standards
• Worldwide telephone network compatibility
• Single Supply Operation, 3.0V to 5.5V
• High differential input impedance
• Very low common-mode input impedance
• Fixed Gain
• TTL Compatible CMOS Logic Level outputs
• Small SOP 16-Pin package
Applications
• VoIP Gateways, IP-PBX, xDSL
• TIP/RING Monitoring
• Line-In-Use Detection
• Polarity Detection for Caller ID, Enhanced 911
• Battery Detection, PSTN Check
• Non-telephony voltage level detection applications
• Instrumentation
• Industrial Controls
Description
The CPC5712 is a special purpose Voltage Monitor
with Detectors integrated circuit that is used in various
high-voltage telephony applications such as VoIP
gateways and IP-PBXs. The device monitors the
TIP/RING potential through a high-impedance divider
(resistor isolation) to derive two programmable signal
level detects, polarity information, and a scaled
representation of the phone line voltages. In use, the
resistor divider and the high input impedance of the
CPC5712 make the circuit practically undetectable on
the line.
The two voltage-level detects are programmed with
external resistors, which gives the designer complete
freedom with respect to line voltage detection levels.
The level settings also have programmable hysteresis
to prevent false triggering conditions. Detection of
these levels allows the user to determine the condition
of the line.
This device can also be used in non-telephony
applications such as instrumentation and industrial
controls, especially when a low-level differential level
needs to be detected in the presence of a large
common-mode voltage.
Ordering Information
CPC5712 With Support Components
Part Description
CPC5712U 16-Pin SOP (100/Tube)
CPC5712UTR 16-Pin SOP (2000/Reel)
DET1
DET2
POLARITY
+
-
IN+
IN-
OUT+
TIP
RING
OUT -
OUT+
V
CC
10 1312119
1
14
7
8
4
5
6
3
2
R
DIFF
R1 R5R4R3R2
V
REF
V
L1
V
H1
V
L2
V
H2
G = 5
CPC5712
V+
Voltage Level Detect 2
Voltage Level Detect 1
Polarity Output
+ Analog Output
- Analog Output
R
IN2
R
IN1
GND
1516
I
NTEGRATED
C
IRCUITS
D
IVISION
2 www.ixysic.com R02
CPC5712
1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Package Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Pin Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.5 Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.6 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Line Side Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Monitor Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.4 Detector Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.5 Detector Threshold Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.6 Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3. Design Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Line Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 Differential Input Resistor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3 Voltage Detector Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3.1 Calculate Resistor Values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3.2 Verify Resistor Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.4 High Voltage Detection Designs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4. Manufacturing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.1 Moisture Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.2 ESD Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.3 Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.4 Board Wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.5 CPC5712U 16-Pin SOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.6 CPC5712UTR Tape and Reel Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
I
NTEGRATED
C
IRCUITS
D
IVISION
CPC5712
R02 www.ixysic.com 3
1. Specifications
1.1 Package Pinout 1.2 Pin Description
1.3 Absolute Maximum Ratings
1.4 ESD Rating
V
CC
CPC5712 Pinout
DET2
DET1
POLARITY
OUT+
OUT-
IN+
IN-
GND
Not Used
Not Used
V
H2
V
L2
V
L1
V
H1
V
REF
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Pin Name Description
1
V
CC
Supply Voltage
2 DET2 Output, Detector 2
3 DET1 Output, Detector 1
4 POLARITY Output, represents polarity of input signal
5 OUT+ Output, amplifier non-inverting
6 OUT- Output, amplifier inverting
7 IN+ Input, amplifier non-inverting
8 IN- Input, amplifier inverting
9
V
REF
Output, Reference used to set threshold levels
10
V
L1
Input, sets DET1 low voltage detection
threshold
11
V
H1
Input, sets DET1 high voltage detection
threshold
12
V
L2
Input, sets DET2 low voltage detection
threshold
13
V
H2
Input, sets DET2 high voltage detection
threshold
14 Not Used Do not use, connect to ground
15 Not Used Do not use, connect to ground
16 GND Ground
Parameter Min Max Unit
V
CC
-0.3 6.0 V
Storage temperature -40 +125 °C
Power dissipation - 50 mW
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.
ESD Rating (Human Body Model)
4000 V
P1-P3P4-P6P7-P9P10-P11

CPC5712U

Mfr. #:
Buy CPC5712U
Manufacturer:
IXYS Integrated Circuits
Description:
Supervisory Circuits Phone Line Monitor
Lifecycle:
New from this manufacturer.
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