output specifications nominal voltage 75vac voltage accuracy no load 3.0v load regulation nl to fl resistive 2.0% line regulation low line to high line 2.0% load impedance resistive load (see note 1) 75 w capacitive load (see note 1) 82 bells output frequency 25hz 2hz maximum output current 2.2a output ripple and noise switching to 20mhz 5v pk-pk output ripple frequency full load 180khz, nominal total harmonic resistive load 5.0% max. distortion output current 1.0a dc offset 2v max. input specifications input voltage range 48vdc nominal 36 to 60vdc input current 3a max. @ 36vdc input filter pi network input undervoltage 48vdc input model 34vdc max. (output clipped) reference input internal sine-wave impedance reference oscillator remote on/off logic compatibility (see note 4) opto-isolated control inputs response time <100ms and start from positive going zero crossing swg75 series dc/ac single output ring generator [ 2 year warranty ] ? 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. specification all specifications are typical at nominal input, full load at 25 c unless otherwise stated page 176 general specifications efficiency resistive load 75% typ. isolation voltage input/output 500vdc input/remote control 500vdc isolation resistance input/output 1g switching frequency fixed 90khz, typical case material aluminium with plastic non-conductive base material flammability ul94v-0 weight (including heatsink) 450g (15.8oz) mtbf mil-hdbk-217f 100,000 hours @ 25c nominal input voltage environmental specifications thermal performance operating temperature see curve (ambient) non-operating C40c to +85c relative humidity non-condensing 10% to 95% rh altitude operating 10,000 feet max. non-operating 30,000 feet max. vibration 5hz to 500hz 2.4g rms (approx.)
notes 1 1 bell = 3k w in series 1.2f, 82 bells = 36 w in series 98f. 2 peak output dc current is the dc biased current flowing through the output. maximum duration is 1 second. 3 metal case (pin 7) should either be tied to +input (pin 4) or -input (pin 3) directly or through a capacitor (>10nf). 4 remote pins are inputs of an opto-isolator, with an internal 330 w 1/4w resistor in series. 5 swg75-48s75c01/p has the same input and output specifications except the remote control logic is reversed. all dimensions in inches (mm) 0.375 (9.525) 5.500 (139.700) bottom view 4.300 (109.220) 3.500 (88.900) 1.280 (32.512) 0.030 (0.762) 0.220 (5.613) 0.890 (22.606) 0.625 (15.875) 3.000 (76.200) pin dia. typ. 0.040 (1.016) ic pin 13 pin 14 330r 1/4w t on = 1 cycle max. t off = 1 cycle max. off on internal sine wave reference output remote control t on t off input output output output peak output typical model number (5) voltage voltage frequency current (rms) dc current (2) efficiency 48vdc 75vac 25hz 1a 480ma 78% swg75-48s75c01 protection short circuit protection indefinite short circuit input current 48vdc, 80ma max. overvoltage protection none overcurrent protection 2.2a peak bouncing mode undervoltage protection none 75va dc/ac ring generator telephone ring generators | 75va dc/ac page 177 http://www.artesyn.com model i c output swg75-48s75c01 0ma on 10 to 20ma off swg75-48s75c01/p (5) 0ma off 10 to 20ma on pin connections pin number pin name function 1 no pin ----- 2 no connection no connection 3 - input negative input 4 + input positive input 5 no connection no connection 6 no connection no connection 7fg (3) metal case 8 no connection no connection 9 return output common 10 75v output 11 no connection no connection 12 no connection no connection 13 - remote remote return 14 + remote remote input 6
vin vin 1 1 1 + (1 + r 1 /r 2 ) 2 fcr 1 + 2 fcr 2 2 () fuse +48vin 0v vout return 0v r 1 r 2 c resistive / capacitive loading power factor (see derating curve) power factor = 1 1 + 2 ( ) power factor = 1 2 fcr vin vin fuse 0v -48vin vout return r c capacitive loading power factor (see derating curve) 0v (see note 2 for dc biased current condition) vin vin fuse +48vin 0v vout return capacitive loading power factor (see derating curve) (see note 2 for dc biased current condition) r c 0v +48v -48vin automatic recovery time <2 cycle maximum short circuit occurs here short circuit removed internal sine wave reference output page 178 75va dc/ac ring generator 75va dc/ac | telephone ring generators application notes 1 automatic zero crossing recover after short circuit removed. 2 examples of dc biased operation. 2.1 non-biased operation 2.2 negative dc biased operation. 2.3 positive dc biased operation.
system board heatsink air flow direction application notes continued 3 for optimal thermal performance conforming to derating curve, the module should be installed vertically. thermal derating curves (nominal input condition) 75w 70w 60w 50w 40w 30w 20w 10w 0w 0 c10 c20 c30 c40 c50 c60 c70 c80 c90 c0 c10 c20 c30 c40 c50 c60 c70 c80 c90 c0 c10 c20 c30 c40 c50 c60 c70 c80 c90 c 0 c10 c20 c30 c40 c50 c60 c70 c80 c90 c0 c10 c20 c30 c40 c50 c60 c70 c80 c90 c0 c10 c20 c30 c40 c50 c60 c70 c80 c90 c resistive loading (power factor = 1.0) fan cooling with built-in heatsink ambient temperature ( c) 80 c abcd 75w 70w 60w 50w 40w 30w 20w 10w 0w resistive loading (power factor = 1.0) free air convection ambient temperature ( c) 75 c abc 75va 70va 60va 50va 40va 30va 20va 10va 0va capacitive loading (power factor = 0.8) ambient temperature ( c) 80 c abcd 75va 70va 60va 50va 40va 30va 20va 10va 0va capacitive loading (power factor = 0.5) ambient temperature ( c) 80 c abcd 75va 70va 60va 50va 40va 30va 20va 10va 0va capacitive loading (power factor = 0.8) free air convection ambient temperature ( c) 75 c abc 75va 70va 60va 50va 40va 30va 20va 10va 0va capacitive loading (power factor = 0.5) ambient temperature ( c) 75 c abc d d d free air convection fan cooling with built-in heatsink fan cooling with built-in heatsink fan cooling with built-in heatsink: a = free air convection b = 75 lfpm c = 225 lfpm d = 500 lfpm free air convection a = built-in heatsink b = heatsink of 1c/w c = heatsink of 0.5c/w d = no heatsink 75va dc/ac ring generator telephone ring generators | 75va dc/ac page 179 http://www.artesyn.com data sheet ? artesyn technologies ? 2000 the information and specifications contained in this data sheet are believed to be correct at time of publication. however, ar tesyn technologies accepts no responsibility for consequences arising from printing errors or inaccuracies. specifications are subject to change without notice. no rights under any patent accompa ny the sale of any such product(s) or information contained herein. 6 ds_swg75_20000101.pdf
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