Technical Specification
SQ100-48-3.3,
SQ100-48-3.3N
SQO100-48-3.3, SQO100-48-3.3N
On/Off Control Power Up/Down
BTCPower
48Vin 3.3Vout 25A
TM
Data Sheet
Figure 12. Turn on timing vs. Input On/Off Pin.
Waveform 2 is output voltage, waveform 4 is negative
On/Off logic signal. At 48v input voltage, 20A output
current with 100uf output capacitance load.
Figure 13. Turn off timing vs. Input On/Off Pin.
Waveform 2 is output voltage, waveform 4 is negative
On/Off logic signal. At 48v input voltage, 20A output
current with 100uf output capacitance load.
Efficiency
100%
95%
90%
Eff. (%)
85%
80%
75%
70%
65%
60%
36
50
75
5
5
5
.5
.5
10
15
20
.5
22
2.
7.
12
Load (A)
Figure 14. Efficiency at nominal output voltage vs.
output current for various Input voltage. The unit
mounted on the 0.06” thick PCB with 300LFM air flow
(1.5/m) from pin 3 to pin 4 and Ta=25°C
Broadband TelCom Power, Inc.
1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
17
25
P
12 of 16
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com • PS SQ100-48-3.3, SQO100-48-3.3 Rev1 4-2-03
BTCPOWER [ BROADBAND TELCOM POWER, INC. ]
