Technical Specification
S15-48-12
48Vin 12Vout 1.25A
BTCPower
TM
Electrical Specifications
Ta=25°C, Vin=48V unless otherwise noted.
PARAMETER
Absolute maximum rating
Input voltage
Operating case temperature
Storage temperature
Humidity
Input characteristics
Operating input voltage range
Turn on voltage threshold
Turn off voltage threshold
Transient withstand
Maximum input current
Off converter input current
Output characteristics
Output voltage set point
Output voltage line regulation
Output voltage load regulation
Output voltage total regulation
Output voltage overall drift rate
Output voltage ripple and noise
Output over power protection
Over-voltage protection
Over-temperature protection
Temperature coefficient
Capacitive Load
Output dynamic characteristics
Startup time
Transient recovery time
NOTES
MIN
0
-40
-55
TYP
MAX
80
100
125
95
UNIT
V
°C
°C
%
V
V
V
V
A
mA
V
%
%
%
%
mV(pk-pk)
%
36
48
35
75
34
100
0.5
31
Transient duration: 100ms
100% load , 36Vin
48Vin
11.7
36~75 Vin
10%-100%Load
±1
±2
50
120
N/A
N/A
12
20Mz bandwidth, 100% Load, 48Vin
100
12.3
±0.3
±0.5
±2
±3
100
140
0
5% to 95% of the output voltage
25% load change
50
±0.04
10,000
100
800
2
89
2000
1100
1100
%/°C
µF
ms
µs
%Vo
%
VDC
VDC
VDC
MΩ
pF
KHz
V
V
V
V
%
Hrs
g(oz)
Transient peak deviation
25% load change
Efficiency (see efficiency curve)
100% load efficiency
48 Vin
Isolation characteristics
Isolation voltage (primary to secondary ) 1minute
Isolation voltage (primary to case)
1minute
Isolation voltage (secondary to case)
1minute
Isolation resistance
500VDC, Primary to secondary
Isolation capacitance
Primary to secondary
Feature Characteristics
Switching frequency
ON/OFF control (Positive logic)
S15-48-12
Converter On
Converter Off
ON/OFF control (Negative logic)
Converter On
S15-48-12N
Converter Off
Output voltage trim range
Percentage of normal output
Calculated MTBF
Bellcore @ 50°C
Weight
10
1000
225
3
-1
-1
3
-8
1,100,000
20.7(0.7)
250
275
7
1.2
1.2
7
+10
Broadband TelCom Power, Inc. –
1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
P 3 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. ]
