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| SWG75 SERIES DC/AC single output ring generator * * * * * * * * * Provides 75VA of ringer output power Typical efficiency 78% Short circuit protection Operating temperature up to 70C Internal sine wave reference Remote ON/OFF control Opto-isolated cadencing ON/OFF control Peak output DC biased current capability Stand-offs for optional heatsink mounting The SWG75 ring current generator series of DC/AC inverters offer 75VA of output power with industry standard footprints and configurations. The design is specifically tailored for PABX system applications to ensure ease of implementation in customer applications. These special features include cadencing output ON/OFF, peak output DC biased current capability at off-hook transition. [ 2 YEAR WARRANTY ] SPECIFICATION OUTPUT SPECIFICATIONS Nominal voltage Voltage accuracy Load regulation Line regulation Load impedance Output frequency Maximum output current No load All specifications are typical at nominal input, full load at 25C unless otherwise stated GENERAL SPECIFICATIONS 75VAC 3.0V 2.0% 2.0% 75 82 bells Isolation resistance Switching frequency Case material Material flammability Weight MTBF (Including heatsink) MIL-HDBK-217F @ 25C nominal input voltage Efficiency Isolation voltage Resistive load Input/output Input/remote control Input/output Fixed 75% typ. 500VDC 500VDC 1G 90kHz, typical Aluminium with plastic non-conductive base UL94V-0 450g (15.8oz) 100,000 hours NL to FL resistive Low line to high line Resistive load (See Note 1) Capacitive load (See Note 1) 25Hz 2Hz 2.2A 5V pk-pk 180kHz, nominal 5.0% max. 1.0A 2V max. Relative humidity 36 to 60VDC 3A max. @ 36VDC Pi network 48VDC input model 34VDC max. Internal sine-wave reference oscillator (See Note 4) Opto-isolated control inputs <100ms and start from positive going zero crossing Vibration Altitude Output ripple and noise Switching to 20MHz Output ripple frequency Full load Total harmonic distortion Output current DC offset INPUT SPECIFICATIONS Input voltage range Input current Input filter Input undervoltage (output clipped) Reference input impedance Remote ON/OFF Logic compatibility Response time 48VDC nominal Resistive load ENVIRONMENTAL SPECIFICATIONS Thermal performance Operating temperature See curve (ambient) Non-operating -40C to +85C Non-condensing Operating Non-operating 5Hz to 500Hz 10% to 95% RH 10,000 feet max. 30,000 feet max. 2.4G rms (approx.) PAGE 176 TELEPHONE RING GENERATORS | 75VA DC/AC 75VA DC/AC ring generator INPUT VOLTAGE 48VDC OUTPUT VOLTAGE 75VAC OUTPUT FREQUENCY 25Hz OUTPUT CURRENT (RMS) 1A PEAK OUTPUT DC CURRENT 480mA (2) TYPICAL MODEL NUMBER EFFICIENCY 78% SWG75-48S75C01 (5) Notes 1 2 3 4 5 1 bell = 3k in series 1.2F, 82 bells = 36 in series 98F. Peak output DC current is the DC biased current flowing through the output. Maximum duration is 1 second. Metal case (pin 7) should either be tied to +INPUT (pin 4) or -INPUT (pin 3) directly or through a capacitor (>10nF). Remote pins are inputs of an opto-isolator, with an internal 330 1/4W resistor in series. SWG75-48S75C01/P has the same input and output specifications except the remote control logic is reversed. 0.890 (22.606) 1.280 (32.512) PIN DIA. TYP. 0.040 (1.016) 5.500 (139.700) 4.300 (109.220) 0.030 (0.762) 0.220 (5.613) 0.625 (15.875) PROTECTION Short circuit protection Short circuit input current Overvoltage protection Overcurrent protection Undervoltage protection Indefinite 48VDC, 80mA max. None 2.2A peak bouncing mode None ALL DIMENSIONS IN INCHES (mm) 3.500 (88.900) 3.000 (76.200) BOTTOM VIEW 0.375 (9.525) PIN CONNECTIONS PIN NUMBER 1 2 3 4 5 6 7 8 9 10 11 12 13 14 PIN NAME No Pin No Connection - Input + Input No Connection No Connection FG (3) FUNCTION ----No Connection Negative Input Positive Input No Connection No Connection Metal Case No Connection Output Common Output No Connection No Connection Remote Return Remote Input On Remote Off Control T on T off T on = 1 cycle max. T off = 1 cycle max. Output Internal sine wave reference Ic Pin 14 330R 1/4W Pin 13 6 No Connection Return 75V No Connection No Connection - Remote + Remote MODEL SWG75-48S75C01 I C OUTPUT ON OFF OFF ON 0mA 10 to 20mA SWG75-48S75C01/P (5) 0mA 10 to 20mA http://www.artesyn.com PAGE 177 75VA DC/AC | TELEPHONE RING GENERATORS 75VA DC/AC ring generator Application notes 1 Automatic zero crossing recover after short circuit removed. Internal sine wave reference Short circuit removed Short circuit occurs here Automatic recovery time <2 cycle maximum Output 2 Examples of DC biased operation. 2.1 Non-biased operation fuse +48Vin Vin Vout Resistive / capacitive loading power factor 0V 0V Vin Return 1 Power Factor = R2 C (See derating curve) R1 1+ ( 2fCR1 + 1 (1 + R1/R2 ) 2fCR2 ) 2 2.2 Negative DC Biased operation. 0V -48Vin R Capacitive loading power factor (See derating curve) Fuse 0V Vin Vout C (See Note 2 for DC biased current condition) -48Vin Vin Return 1 Power factor = 1+ ( 1 2fCR ) 2 2.3 Positive DC biased operation. Fuse +48Vin Vin Vout 0V Vin Return +48V 0V Capacitive loading power factor R (See derating curve) C (See Note 2 for DC biased current condition) PAGE 178 TELEPHONE RING GENERATORS | 75VA DC/AC 75VA DC/AC ring generator Application notes continued 3 For optimal thermal performance conforming to derating curve, the module should be installed vertically. System board Heatsink Air flow direction Thermal derating curves (nominal input condition) Free air convection a b c d = = = = Built-in heatsink Heatsink of 1C/W Heatsink of 0.5C/W No heatsink Fan cooling with built-in heatsink: a b c d = = = = Free air convection 75 LFPM 225 LFPM 500 LFPM RESISTIVE LOADING (power factor = 1.0) 75W 70W 60W 50W 40W 30W 20W 10W 0W 80C 0C 10C 20C 30C 40C 50C 60C 70C 80C 90C FAN COOLING WITH BUILT-IN HEATSINK a b cd 75VA 70VA 60VA 50VA 40VA 30VA 20VA 10VA 0VA CAPACITIVE LOADING (power factor = 0.8) a CAPACITIVE LOADING (power factor = 0.5) b c d 75VA 70VA 60VA 50VA a b c d FAN COOLING WITH BUILT-IN HEATSINK 40VA 30VA 20VA 80C 10VA 0VA FAN COOLING WITH BUILT-IN HEATSINK 6 80C 0C 10C 20C 30C 40C 50C 60C 70C 80C 90C 0C 10C 20C 30C 40C 50C 60C 70C 80C 90C AMBIENT TEMPERATURE (C) AMBIENT TEMPERATURE (C) AMBIENT TEMPERATURE (C) 75W 70W 60W 50W 40W 30W 20W 10W 0W RESISTIVE LOADING (power factor = 1.0) d a b c 75VA 70VA 60VA 50VA CAPACITIVE LOADING (power factor = 0.8) a d b c 75VA 70VA 60VA 50VA CAPACITIVE LOADING (power factor = 0.5) a b c d FREE AIR CONVECTION FREE AIR CONVECTION 40VA 30VA 20VA 75C 10VA 0VA FREE AIR CONVECTION 40VA 30VA 20VA 75C 10VA 0VA 75C 0C 10C 20C 30C 40C 50C 60C 70C 80C 90C 0C 10C 20C 30C 40C 50C 60C 70C 80C 90C 0C 10C 20C 30C 40C 50C 60C 70C 80C 90C AMBIENT TEMPERATURE (C) AMBIENT TEMPERATURE (C) AMBIENT TEMPERATURE (C) DS_SWG75_20000101.PDF Data Sheet (c) Artesyn Technologies(R) 2000 The information and specifications contained in this data sheet are believed to be correct at time of publication. However, Artesyn Technologies accepts no responsibility for consequences arising from printing errors or inaccuracies. Specifications are subject to change without notice. No rights under any patent accompany the sale of any such product(s) or information contained herein. http://www.artesyn.com PAGE 179 |
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