Data Sheet
ESTW025A0F Series Eighth-Brick Power Modules
36–75Vdc Input; 3.3Vdc Output; 25A Output
October 11, 2011
Electrical Specifications (continued)
Parameter
Device Symbol
Min
Typ
Max
Unit
Nominal Output Voltage Set-point
VIN=VIN, nom, IO=IO, max, TA=25°C)
All
All
VO, set
VO
3.250
3.200
3.300
3.350
3.400
Vdc
Vdc
Output Voltage
(Over all operating input voltage, resistive load, and
temperature conditions until end of life)
Output Regulation
Line (VIN=VIN, min to VIN, max
Load (IO=IO, min to IO, max
Temperature (Tref=TA, min to TA, max
)
All
All
All
±0.1
10
% VO, set
±0.2
)
mV
% VO, set
)
Output Ripple and Noise on nominal output
(Co=1uF,ceramic+10uF,tantalum, VIN=VIN, nom ,IO= IO,
max , TA=TA, min to TA, max
)
RMS (5Hz to 20MHz bandwidth)
All
All
All
All
8
20
75
mVrms
mVpk-pk
μF
0
Peak-to-Peak (5Hz to 20MHz bandwidth)
External Capacitance 1
40
CO, max
Io
IO, lim
20,000
25.0
Output Current
0
Adc
Output Current Limit Inception (Hiccup Mode )
All
All
26.3
29
32.5
Adc
(VO= 90% of VO, set
)
Output Short-Circuit Current (VO≤250mV)
( Hiccup Mode)
IO, s/c
1.6
Arms
Efficiency
VIN= VIN, nom, TA=25°C, IO=IO, max , VO= VO,set
VIN= VIN, nom, TA=25°C, IO=10A, VO= VO,set
VIN= VIN, nom, TA=25°C, IO=5A , VO= VO,set
All
All
All
η
η
η
91.0
91.0
85.5
92.0
92.0
87.0
%
%
%
Switching Frequency
All
fsw
355
kHz
Dynamic Load Response
(Co=1uF,ceramic+220uF,tantalum, dIo/dt=0.1A/s;
VIN = 48V; TA=25°C)
Load Change from Io= 50% to 75% or 25% to 50% of
Io,max
Peak Deviation
All
All
Vpk
ts
127
200
mV
Settling Time (Vo<10% peak deviation)
s
1.
See Note 2 under Feature Specifications.
Isolation Specifications
Parameter
Device Symbol
Min
Typ
1000
30
Max
Unit
pF
Isolation Capacitance
All
All
All
Ciso
Riso
All
Isolation Resistance
MΩ
Vdc
I/O Isolation Voltage (100% factory Hi-pot tested)
2250
General Specifications
Parameter
Device
Symbol
Min
Typ
Max
Unit
Calculated Reliability based upon Telcordia SR-332
Issue 2: Method I Case 3 (IO=80%IO, max, TA=40°C,
airflow = 200 lfm, 90% confidence)
All
FIT
229.4
109/Hours
All
MTBF
4,359,904
Hours
g(oz)
g(oz)
Weight (Open Frame)
Weight (with Heatplate)
All
All
22 (0.78)
35 (1.23)
LINEAGE POWER
3
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
