S15-48-12 BTCPOWER [Broadband TelCom Power, Inc.], S15-48-12 Datasheet - Page 10

• Manufacturer Part Number: S15-48-12
• Description: 48Vin 12Vout 1.25A
• Manufacturer: BTCPOWER [Broadband TelCom Power, Inc.]

Technical Specification
S15-48-12
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=10 F tantalum capacitor + 1 F Ceramic
capacitor, time scale: 200 s/div
Tel.: [phone] • Fax: [phone] • www.btcpower.com • Email: [e-mail] PS S15-48-12 Rev4.2 21-1-05
Broadband TelCom Power, Inc. –
1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
48Vin 12Vout 1.25A
Efficiency Curves
Fig 10. Efficiency vs. output current at various Input voltage.
The ambient temperature is 25 C
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.
90
80
70
60
50
90
80
70
60
50
0.25
0.25
0.50
0.50
Output current (A)
Output current (A)
BTCPower
BTCPower
0.75
0.75
1.00
1.00
P 10 of 12
25°C
40°C
55°C
36V
48V
75V
1.25
1.25
T M