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15 Watt Sine Wave Telephone Ring Generator
15REN@86Vrms to 40REN@45Vrms
PCR-SIN15V48F00
PCR-SIN15V48F00 15REN@86Vrms to 40REN@45Vrms SINE WAVE TELEPHONE RING GENERATOR
FEATURES
Support 10-40 standard North American REN Adjustable Output Voltage between 45-100Vrms Overload Control with Constant Output Power Output Short Circuit Protection Digital Frequency Selection Zero Crossing Synchronization Output Signal Input Under/Over Voltage Protection High Output Load Indication Signal Low THD Sine Wave Output Fully Floating Output 90 Days Warranty UL1950, CSA C22.2 No. 950 and EN60950 Approved
TYPICAL APPLICATION 1
Floating Output Configuration
V(+) Vin 100 F
Set Output to 86-100Vrms Set Output to 45-86Vrms
O1
PCR-SIN15
SYNC F0 OAC Inhibit V(-)
Frequency Control
Ring Generator Output O2
APPLICATIONS
PBX, PABX, DLC and Key Systems Rural Telephony Systems Wireless Local Loop Systems Satellite Telephone and VSAT Terminal Integrated Access Devices VoIP Gateways Short/Long Loop Applications Test Equipment
RAOC
DESCRIPTION
The PCR-SIN15V48F00 Ring Generator offers high performance with an advanced overload protection mechanism. Each unit includes an internal crystal oscillator and supports all popular ringing frequencies of 16.7, 20, 25 and 50Hz. The PCR-SIN15V48F00 can continuously support up to 40 standard North American REN loads, providing a low THD sine wave ringing signal. The output ringing signal amplitude defaults to 86Vrms and can be externally adjusted to any value ranging between 45-100Vrms Overload Protection Loads that exceed the number of REN that the unit is set to support according to the preset output voltage, will momentarily clamp the output sine wave, and trigger the ring generator overload protection. This function allows the Ring Generator to provide continuous service to up to 40 North American REN loads. The overload protection constantly monitors the output distortion level, and will automatically reduce the output amplitude in order to maintain a low distortion level of THD5%. The new output amplitude will match the overload, according to the following table: Output Ringing Amplitude 100Vrms 90Vrms 86Vrms 75 Vrms 65 Vrms 55 Vrms 45 Vrms Short Circuit Protection Active Load [1REN = 6930+8F] 10REN 13REN 15REN 20REN 25REN 35REN 40REN >> 40REN
High Load Indication The OHD output terminal provides indication of output High Load when the output power exceeds approximately 11 Watt. At High Load, the OHD terminal will provide an High 5V TTL Logic Level signal referenced to the V(-) terminal. This signal will remain at a High Level until the High Load condition is removed. This indication can be useful in order to keep the ring generator within a certain output voltage specifications by managing the output load. Inhibit Control The Inhibit terminal functions to shut down the output and reduce the unit's current consumption to an idling level. It is operated by 5V TTL logic levels referenced to the V(-) terminal. When this input is disconnected or tied to a TTL low level, the output is enabled. Negatively fed devices, where V(+) connects to the system's GND, and V(-) to negative 48Vdc, may require a few more components to match voltage levels between the telecom system's logic and the Inhibit control. Recommended connection is illustrated on INHIBIT CONTROL FOR NEGATIVE FED CONFIGURATION. An internal synchronization circuitry activates a delay between the inhibit command and shuts off the unit until the sine wave output signal reaches the zero crossing. This assures that the output will always turn on and shut off at zero voltage. Note that the Inhibit control can be used to generate the ringing signal's on/off intervals. Inhibit control eliminates the need for additional external components in cadence implementation. Output Amplitude Control The output amplitude nominal value can be adjusted in the range of 45-100Vrms and defaults to 86Vrms @ 15 North American REN load, when the OAC terminal is left unconnected. Output amplitudes in the range of 86-100Vrms can be set by connecting an external resistor, ROAC, between the OAC terminal and V(-). Output amplitudes in the range of 45-86Vrms can be set by connecting an external resistor, ROAC, between the OAC terminal and V(+). For setting the ROAC value, refer to the OUTPUT AMPLITUDE ADJUSTMENT graphs on page 24. Each output amplitude value is designed to support a certain nominal REN load according to the above table.
Output Short Circuit Protection Loads that excessively exceed 40REN trigger an internal protection that monitors the unit's input current. When the input current threshold is exceeded for approximately 600mSec, the protection automatically shuts off the output. After the output has been off for 5 seconds, normal operation will automatically resume, depending on the existing load conditions.
PowerDsine Ltd. PowerDsine, Inc. PowerDsine Europe
Tel: +972-9-775-5100 * Fax: +972-9-775-5111 * Email: sales@powerdsine.com Tel: +1-631-756-4680 * Fax: +1-631-756-4691 * Email: sales@powerdsineusa.com Tel: +49-6187-900-849 * Fax: +49-6187-292848 * Email: europe@powerdsine.com
OHD
F1
PCR-SIN15V48F00 15REN@86Vrms to 40REN@45Vrms SINE WAVE TELEPHONE RING GENERATOR
Zero Crossing Synchronization Output The SYNC output provides a high TTL level pulse to indicate the AC output voltage zero crossing, relative to the output sine wave. This is useful for prolonging relay life by timing switching with the ringing signal zero crossing. The SYNC signal rises to a high TTL level, referenced to V(-), 2.5mSec prior to the zero crossing and remains at high level for about 5mSec. When the unit is set to a 50Hz ringing frequency, the SYNC signal rises to a high TTL level 2.0mSec prior to the zero crossing and remains at high level for 4mSec. Output DC Biasing The ring generator's output is isolated and floating and can be superimposed on negative or positive DC voltage. When the DC biasing option is utilized (see Typical Application 2), a series protection resistor should be added in to each port (i.e. telephone extension). This resistor should limit the potential DC current through the unit's output stage should the output be shorted. The recommended minimum values for these serial resistors are proportionate to the DC bias. Output DC Bias Series Protection Resistor 12Vdc 47 24Vdc 100 48Vdc 200 75Vdc 350 In the event that high frequency switching noise from the ring generator input reflects on the output via the Talk Battery line, a filter of a 22-100F capacitor and a 10-20 resistor should be added. When the Inhibit terminal is enabled, no AC/DC voltage exists on the Ring Generator's output. Input Voltage Supply The PCR-SIN15V48F00 ring generator features a wide range of input voltage capabilities. These capabilities are achieved by utilizing a sophisticated feed forward topology, which continuously samples the input voltage. The units output amplitude is then regulated for line changes. Low frequency ripple on the input may be interpreted as line changes and reflect on the output. Therefore, it is essential to restrain the input's ripple. Acceptable levels are specified in the PERFORMANCE/FUNCTIONAL SPECIFICATIONS. Connecting an input capacitor, as illustrated in the Typical Applications may reduce high frequency ripple on the input, which originates from the units internal 100kHz switching frequency. Case Shielding The SHIELD terminal is connected to the device's metal case. The terminal may be connected to grounded systems in order to reduce radiated EMI. Output Frequency Control Each PCR-SIN15V48F00 ring generator supports all four popular output frequencies: 16.7, 20, 25 and 50Hz. The frequency selection is controlled by TTL levels, referenced to V(-), or by jumpering the F0 and F1control pins to the V(-), according to the following table: Frequency 16.7Hz 20Hz 25Hz 50Hz F1 "0" or tied to V(-) "1" or disconnected "1" or disconnected "0" or tied to V(-) F0 "1" or disconnected "1" or disconnected "0" or tied to V(-) "0" or tied to V(-)
The F0 and F1 terminals are pulled up to an internal 5V source in reference to the V(-) terminal. For digital frequency control, use either an open collector or an opto-coupler driver. When utilizing digital frequency control or frequency setup jumpers that are connected via long conductors to the ring generator, the addition of two 47nF noise filtering capacitors between F0 and the V(-) and between the F1 and the V(-) terminals is advised. Frequency changes take effect at start-up by power connection or by the Inhibit control. Frequency setup changes while the output is on may disturb normal operation.
V(+) 100F PCR-SIN15 O1
V(-)
F0
F1
O2
47nF 47nF
TYPICAL APPLICATION 2
Output AC is superimposed on DC bias - A single 48Vdc power supply is used for the Ring Generator feeding and for the output biasing
Fuse 2A/250V Vin 48Vdc 100 F V(+)
Series Protection Resistors O1 Telephone Ports
PCR-SIN15 V(-)
O2
10-20
22-100 F
Note: A 0.1F ceramic capacitor on each output line from the PCR-SIN15V48F00 Ring Generator prevents the possibility of the high switching frequencies causing interference down the line.
PCR-SIN15V48F00
PCR-SIN15V48F00 15REN@86Vrms to 40REN@45Vrms SINE WAVE TELEPHONE RING GENERATOR
TYPICAL APPLICATION 3
Output AC is superimposed on DC bias - Two DC power supplies are used, one for the Ring Generator feeding and another for the output biasing
Fuse 2A/250V Vin 48Vdc 47 F 47 F 1mHy Common Mode Chock Series Protection Resistors V(+) O1 Telephone Ports
PCR-SIN15 V(-)
O2
Talk Battery DC Bias
Note: A 0.1F ceramic capacitor on each output line from the PCR-SIN15V48F00 Ring Generator prevents the possibility of the high switching frequencies causing interference down the line.
TEST SETUP
A
Vin
Fuse 2A/250V
V(+)
O1 470 200 10
100 F
PCR-SIN15
V
D
47nF
47nF
V(-)
O2 OAC (not connected)
5V
F1 F0 Inhibit OHD SYNC
INHIBIT CONTROL FOR NEGATIVE FED CONFIGURATION
+5V Inhibit Control 47K PNP Transistor Fuse 20K GND Zener Diode 4.7-5.1V 0.1 F 2A/250V V(+) PCR-SIN15 Inhibit V(-) O1
+5V referenced to GND
O2
-48V
SAFETY INSTRUCTIONS
1. For North America, input voltage (nominal 48Vdc, tolerance 36-60Vdc) must be applied by an isolated DC source complying with the earthed SELV or TNV requirements of the UL1950, Third edition. For other countries, input voltage (nominal 48Vdc, tolerance 36-72Vdc) must be supplied by an isolated DC source complying with the earthed SELV or TNV requirements of the latest version of EN60950. DC input must be protected by a UL Listed fuse rated maximum T2A, 250V (slow-blow 2A , 250V fuse). When applicable, protection from excessive voltage on the output should be tested in end-use equipment. For output voltage exceeding 80Vrms, compliance with the ringing signal requirements should be tested in end-use equipment. When the output voltage is set to less than 80Vrms, the ringing signal complies with M.2 requirements of IEC950.
Tel: +972-9-775-5100 * Fax: +972-9-775-5111 * Email: sales@powerdsine.com Tel: +1-631-756-4680 * Fax: +1-631-756-4691 * Email: sales@powerdsineusa.com Tel: +49-6187-900-849 * Fax: +49-6187-292848 * Email: europe@powerdsine.com
2. 3. 4.
PowerDsine Ltd. PowerDsine, Inc. PowerDsine Europe
PCR-SIN15V48F00 15REN@86Vrms to 40REN@45Vrms SINE WAVE TELEPHONE RING GENERATOR
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage Inhibit, F1 and F0 Input Voltage Operating Ambient Temperature (TA) Storage Temperature Lead Temperature (Soldering, 10 sec max.) ............. ............. ............. ............. ............. +85V -0.5V to +5.2V -40C to +85C -55C to +90C +300C
* These are stress ratings. Exposure of the device to any of these conditions may adversely effect long-term reliability. Proper operation other than as specified in the PERFORMANCE / FUNCTIONAL SPECIFICATIONS is not implied.
PERFORMANCE / FUNCTIONAL SPECIFICATIONS
Typical at: TA = +25C, Vin = 48Vdc, Load=470 resistive, Cin = 100F, OAC not connected, according to Test Setup schematics. Parameters Conditions Min Typ Max Supply 72.0 48.0 36.0 Supply Voltage (Vin) 1.0 Supply Voltage Ripple 100-120Hz, 36.0Vin72.0, @ Pout=15VA Current Consumption 4 Device Inhibited 60 70 No Load 750 Full Load Load=470, @ Vinmin=36V 1.4 Peak Current Load470, @ Vinmin=36V Input Under Voltage Protection 28.0 36.0 Input Over Voltage Protection 72.0 85.0 Efficiency Pout = 15W 75 80 Output 0 Power Continuous Loading 16 0.5 Power Factor Output Voltage OAC not connected ROAC between OAC & V(+)/V(-) Output Frequency Frequency Accuracy THD Inhibit Control Input Disable Voltage VIH Enable Voltage VIL Iin Source Iin Sink F0, F1 Control Input VIH VIL Iin Source Inhibit Control Timing Time to Turn-On Time to Turn-Off Overload Protection Response Time to Turn-Off Time to Turn-On General Insulation Switching Frequency Environment Relative Humidity Ambient Temperature (TA) Reliability Calculated MTBF OHD, Sync Output VOH VOL VOL Pout=10VA 80 See graphs on OUTPUT AMPLITUDE ADJUSTMENT According to F0, F1 setting 36.0Vin72.0Vdc, 0Pout15W, -40C TA +85C 40.0Vin72.0Vdc, 0Pout15W, -40C TA +85C Referenced to the V(-) Terminal 3.5 -0.5 VIL = 0V VIH = 5V Referenced to the V(-) Terminal 3.5 -0.5 VIL = 0V 40 86 45-100 16.7, 20, 25, 50 3 5 5 0 5.2 1.0 700 700 5.2 1.0 700 50 35 600 5 800 92 Vrms Vrms Hz % % Vdc Vdc A A Vdc Vdc A ms ms ms s M kHz 93 +50 to +85 % C C Hours 5.3 0.8 1.2 Vdc Vdc Vdc Units Vdc Vp-p mA mA mA A Vdc Vdc % VA |cos |
Output Overloaded Load reverts to Normal; 0Pout15VA 500Vdc Input to Output
200
40 96
Non-Condensing, Per IEC 68-2-56 Without Derating Derated from +50C by 0.3W/C Continuous Operation@40C Ambient Temperature Calculation method: Relex Bellcore Software Ver5.30 Referenced to V(-) Terminal Output Source Current 2mA Output Sink Current 2mA Output Sink Current 5mA
-40
4,000,000 4.2 0 0
PCR-SIN15V48F00
PCR-SIN15V48F00 15REN@86Vrms to 40REN@45Vrms SINE WAVE TELEPHONE RING GENERATOR
OUTPUT AMPLITUDE ADJUSTMENT
Raoc for Vout= 86-100 Vrms @ Pout= 10 VA
300
Raoc for Vout=45-86Vrms @ Pout=10VA
800 700
250
600
Roac [K ]
200
Roac [K ]
500 400 300 200
150
100
50
100 0
90 91 92 93 94 95 96 97 98 99 100 101
0
45
50
55
60
65
70
75
80
85
Vout [Vrms]
Vout [Vrms]
ROAC connected between the OAC and the V(-) terminals
ROAC connected between the OAC and the V(+) terminals
MECHANICAL DETAILS
DIMENSIONS
mm A B C D E F G H J K L 63.500.40 63.500.40 12.70 Max 35.560.25 40.640.25 35.560.25 Inch 2.500"0.016" 2.500"0.016" 0.500" Max 1.400"0.01"
Case made of Aluminium sheet 5052-H32 PER QQ-A-250/8 1.0mm
Ventilation Holes C
Side View
H
L
Terminals 0.035 0.0006" DIA (0.90.15mm) Recommended PCB drill DIA 0.05" (1.2mm) A F
G
Bottom View
1.6000"0.01" 1.400"0.01"
J
SHIELD V(+) OAC Inhibit O1 O1
0.640.10 SQ 0.025"0.004 SQ 3.000.30 5.080.25 13.970.50 1.000.15 0.117"0.012" B 0.200"0.01" 0.550"0.02" 0.039"0.005" D
F1 F0 OHD SYNC V(-) O2 O2
D
K
PCR-SIN15V48F00 V14 0900 PowerDsine Ltd. PowerDsine, Inc. PowerDsine Europe Tel: +972-9-775-5100 * Fax: +972-9-775-5111 * Email: sales@powerdsine.com Tel: +1-631-756-4680 * Fax: +1-631-756-4691 * Email: sales@powerdsineusa.com Tel: +49-6187-900-849 * Fax: +49-6187-292848 * Email: europe@powerdsine.com

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