S15-48-12 Datasheet, PDF (10/12 Pages) Broadband TelCom Power, Inc. – 48Vin 12Vout 1.25A

Technical Specification
S15-48-12
48Vin 12Vout 1.25A
BTCPower ^{T M}
Turn-On Transient Waveforms
Fig 9. Startup under positive logic control at Vin=48v, Iout
=3A. Ch2: ON/OFF signal (1V/div) , Ch1: Output voltage
(2V/div), Co=10µF tantalum capacitor + 1µF Ceramic
capacitor, time scale: 200µs/div
Efficiency Curves
90
80
70
60
50
0.25
36V
48V
75V
0.50 0.75 1.00
Output current (A)
1.25
Fig 10. Efficiency vs. output current at various Input voltage.
The ambient temperature is 25°C
90
80
70
60
50
0.25
25°C
40°C
55°C
0.50 0.75 1.00
Output current (A)
1.25
Fig 11. Efficiency at nominal input (48V) vs. load at different
ambient temperatures of 25°C, 40°C, 55°C without air flow,
the input voltage is 48V.
Broadband TelCom Power, Inc. – 1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A. P 10 of 12
Tel.: [phone] • Fax: [phone] • www.btcpower.com • Email: [e-mail] PS S15-48-12 Rev4.2 21-1-05