TM
Technical Specification
S15-48-12
48Vin 12Vout 1.25A
Dynamic Response Waveform
Thermal De-Rating Curve
2
1
0
0LFM
100FM(0.5m/s)
200LFM(1m/s)
50
55
60
65
70
75
80
Ambient Temperature(°C)
Fig 14. Maximum output current vs. temperature. Both the
input and output voltages are nominal.
Fig 12. Dynamic response of load step at Vin=48v, Ch1:
output voltage change(100mv/div), Ch2: output current step
of 50%-75%-50% (0.5A/div). Current slew rate:0.1A/ms,
Co=10mF tantalum capacitor + 1mF Ceramic capacitor, time
scale: 1ms/div
Over Current Protection Curve
Output Ripples and Noise Waveform
Fig 15. Output voltage vs current showing current limit point
and converter shut down point
Fig13. Output voltage Ripple & Noise at Vin=48v, Iout=1.25A
Co=10mF tantalum capacitor + 1mF Ceramic capacitor, ch1:
20mV/div, time scale: 1ms/div.
Broadband TelCom Power, Inc. – 1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A. P 11 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. ]
