Data Sheet
February 16, 2009
QSW025A0B Series Power Modules; DC-DC Converters
36 – 75Vdc Input; 12Vdc Output; 25A Output Current
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
Typ
Max
Unit
Output Voltage Set-point
(VIN=VIN,nom, IO=15A, Ta =25°C)
All
VO, set
12
Vdc
Output Voltage
(Over all operating input voltage, resistive load,
and temperature conditions until end of life)
VO
11.4
12.6
Vdc
⎯
Output Regulation
Line (VIN=VIN, min to VIN, max
Load (IO=IO, min to IO, max
)
All
All
All
24
360
⎯
36
mV
mV
mV
⎯
⎯
⎯
)
600
250
Temperature (TA = -40ºC to +85ºC)
Output Ripple and Noise on nominal output
(VIN=VIN, nom and IO=IO, min to IO, max
)
RMS (5Hz to 20MHz bandwidth)
All
33
65
mVrms
⎯
Peak-to-Peak (5Hz to 20MHz bandwidth)
External Capacitance
All
All
100
200
mVpk-pk
⎯
CO, max
Io
0
20,000
μF
⎯
Output Current
All
All
0
25
Adc
Adc
Output Current Limit Inception
IO, lim
30
⎯
⎯
Efficiency
VIN=VIN, nom, TA=25°C
IO=IO, max , VO= VO,set
All
η
95
%
⎯
⎯
⎯
⎯
Switching Frequency (input ripple is ½ fsw
Dynamic Load Response
)
fsw
300
kHz
(dIo/dt=1A/10μs; Vin=Vin,nom; TA=25°C; Tested
with a 10 μF aluminum and a 1.0 μF tantalum
capacitor across the load.)
Load Change from Io= 50% to 75% of Io,max:
Peak Deviation
mVpk
μs
Vpk
ts
550
500
⎯
__
⎯
__
All
Settling Time (Vo<10% peak deviation)
Load Change from Io= 75% to 50% of Io,max:
Peak Deviation
mVpk
μs
Vpk
ts
__
__
550
500
__
Settling Time (Vo<10% peak deviation)
Isolation Specifications
Parameter
Symbol
Ciso
Min
⎯
Typ
1000
⎯
Max
⎯
Unit
pF
Isolation Capacitance
Isolation Resistance
Riso
10
MΩ
⎯
General Specifications
Parameter
Device
Min
Typ
Max
Unit
Calculated Reliability Based upon Telcordia SR-
MTBF
FIT
All
2,651,917
Hours
332 Issue 2: Method I, Case 1, (IO=80%IO, max
,
All
337.1
109/Hours
TA=40°C, Airflow = 200 lfm), 90% confidence
Weight – Open Frame
49 (1.73)
64 (2.24)
g (oz.)
g (oz.)
⎯
⎯
⎯
⎯
Weight – with Baseplate option
LINEAGE POWER
3
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
