Technical Specification
S15-48-12
48Vin 12Vout 1.25A
BTCPower
TM
Dynamic Response
The dynamic response of the unit at load step is
shown in Fig 12. The output load current change
from 50% to 75% and return to 50% at the slew
of 0.1A/µs. The input is 48V and a filter of 10µF
tantalum capacitor and 1µF ceramic capacitor is
used parallel to the output.
Ripple and Noise
The output voltage waveform has been measured
at full load condition, with 10µF tantalum
capacitor plus 1µF Ceramic capacitor closely
parallel to the unit’s output. Fig 13 shows the
output ripple and noise waveform.
Thermal De-rating
For thermal de-rating, output current vs. ambient
temperature and airflow rates has been tested,
and the test results are given in Fig 14.
Ambient temperature varies between 55°C and
90°C with the airflow of 0, 100 and 200LFM (0,
0.5m/s and 1m/s).
Others
Other curve and waveforms presented include
output voltage vs. current curve (Fig 15) and
input current ripple waveform at full load condition
(Fig 16).
Broadband TelCom Power, Inc. –
1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
P 8 of 12
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com PS S15-48-12 Rev4.2 21-1-05
BTCPOWER [ BROADBAND TELCOM POWER, INC. ]
