SWG30 SERIES

DC/AC single output ring generator

[ 2 YEAR WARRANTY ]

PAGE 172

• 30VA of ringer output power

• Short circuit protection

• Operating temperature up to 70°C

• Internal sine wave reference

• Remote ON/OFF control

Measuring just 4.00 x 4.00 x 0.63 inches, the SWG30 design maximizes

efficiency, typically 80% at full load. Operating from any input voltage in the

range 40 to 60VDC, the SWG30 features indefinite short circuit protection and

overcurrent protection features, and has a high MTBF of 300,000 hours

(calculated in accordance with MIL-HDBK-217F) to ensure reliable operation. A

remote on/off control feature facilitates easy systems integration. The SWG30

ring generator has a typical input current of 780mA, and a maximum output

current of 400mA rms, (260mA peak DC current). The series features line and

load regulation of 1% and at full load the maximum output ripple is typically less

than 5V peak-to-peak. The unit has a wide operating temperature range of 0°C

to +70°C and the black coated copper case material meets flammability

standard UL94V-0. The SWG30 has an isolation voltage of 500VDC and an

internal sine-wave reference oscillator.

INPUT NOISE SPECIFICATIONS

Conducted noise

VDE0871, FCC part 15 (Note 7) Level A

GENERAL SPECIFICATIONS

Efficiency

Resistive load

See table

Isolation voltage

500VDC

Switching frequency

Fixed

120kHz, typical

Case material

Black coated copper

Material flammability

UL94V-0

Weight

230g (8.12oz)

MTBF

Demonstrated

300,000 hours

ENVIRONMENTAL SPECIFICATIONS

Thermal performance

Operating temperature

0°C to +70°C

ambient

Derate 2.5%/°C

(See Note 1)

after 50°C, under

Free air convection

cooled

Non-operating

–40°C to +85°C

Cooling

Free air convection

cooled

Relative humidity

Non-condensing

10% to 95% RH

OUTPUT SPECIFICATIONS

Nominal voltage

75VAC, 85VAC, 95VAC

Voltage accuracy

±3.0%

Load regulation (static)

No load to full load

±1.0%

Line regulation

±1.0%

Load impedance

SWG30-48S75C01

188

Ω

SWG30-48S85C01

284

Ω

SWG30-48S90C01

270

Ω

Capacitive load (See Note 2)

30VA

Output frequency

25Hz, ±2Hz

Maximum output current

See table

Output ripple and noise Full load

5V pk-pk

Output ripple frequency Full load

240kHz, nominal

Total harmonic distortion

5.0% max.

Voltage range

±3V

DC offset

±2V max.

INPUT SPECIFICATIONS

Input voltage range

48VDC nominal

40 to 60VDC

Input current

1.1A max. @ 40VDC

Input filter

Pi network

Input undervoltage

48VDC input model

38VDC max.

(output clipped)

Reference input

Internal sine-wave

impedance

reference oscillator

Remote ON/OFF

(See Note 4)