50, 75,100,150, 200,240 WATT
DC-DC Converters,
EP SERIES
MODEL SELECTION
Model Name
EPB-24SC48-A
EPC-24SC48-A
EPD-24SC48-A
EPE-24SC48-A
EPO-24SC48-A
EPP-24SC48-A
36~75Vdc Input
Vout
(Vdc)
24
24
24
24
24
24
Vin
(Vdc)
36-75
36-75
36-75
36-75
36-75
36-75
Io
(Amps)
2.1
3.1
4.2
6.3
8.3
10
Watts
50
75
100
150
200
240
FEATURES
High Power Density - Up to 98W/in
3
Constant Frequency - 370kHz
-40 to +100oC Operation
105oC Over Temperature
High Efficiency
Low Output Noise
Industry-Standard Pinout
Metal Baseplate
2:1 Input Voltage Range
Size: 60.70mm x 57.91mm x 13.30mm
(2.39in. x 2.28in. x 0.52in.)
Thermal Protection(except 50W and 75W)
Over Voltage Protection
Current Limit/Short Circuit Protection
Adjustable Output Voltage: 60% to 110% of V
0,set
Remote Sense
Logic ON/OFF
Safety Agency Approval
SPECIAL FEATURES
Long Lead(0.23in)-LL
Negative Logic Control-Neg.
(Remote Control For C-T)
Threaded hole standoff-Td
SPECIFICATION
ABSOLUTE MAXIMUM RATINGS:
Exceeding absolute maximum ratings may cause permanent damage and reduce reliability
PARAMETER
Input Voltage
Transient Input Voltage
Input/Output Isolation
Operating Case Temperature
Storage Temperature
-40
-40
MIN
MAX
80
100
1500
100
110
UNITS
Vdc
Vdc
Vdc
o
o
CONDITIONS
Continuous
100 msec max.
C
C
INPUT SPECIFICATIONS:
PARAMETER
Operation Input Voltage (V
i
)
Maximum Input Current (I
i
,
max
):
EPB-24SC48-A
EPC-24SC48-A
EPD-24SC48-A
EPE-24SC48-A
EPO-24SC48-A
EPP-24SC48-A
MIN
36
TYP
48
MAX
75
UNITS
V
CONDITIONS
2.1
2.5
3.5
4.0
6.5
8.5
1.0
A
A
A
A
A
A
A
2
t
mAp-p
V
i
= 0Vdc to 75Vdc
I
o
= I
o,max
Inrush Transient
Input Reflected-Ropple Current:
Peak to Peak
Input Ripple Rejection
5
60
5Hz~20MHz, 12uH
Source Inpedance
@ 120Hz
dB
ETA-USA Tel: 408-778-2793 Fax: 408-779-2753 e-mail: sales@eta-usa.com
1
50, 75,100,150, 200,240 WATT
DC-DC Converters,
EP SERIES
OUTPUT SPECIFICATIONS:
PARAMETER
Output Voltage Set Point (V
o,set
)
Line Regulation
Load Regulation
Temperature Drift
Total Regulation
Output Ripple and Noise Voltage:
RMS
Peak to Peak
External Load Capacitance
Output Current(
I
o
):
EPB-24SC48-A
EPC-24SC48-A
EPD-24SC48-A
EPE-24SC48-A
EPO-24SC48-A
EPP-24SC48-A
36~75Vdc Input
CONDITIONS
T
c
=25
o
C,
V
i
=48V,
I
o
= I
o
,max
V
i
=36V to 75V
I
o
=0.5A to
I
o,max
Tc=-40
o
C to 100
o
C
V
%
%
mV
%
5Hz to 20MHz
MIN
23.55
TYP
24.00
0.01
0.05
50
MAX
24.45
0.1
0.2
300
1.5
UNITS
150
0
400
3,300
mVrms
mV
p-p
uF
Electrolytic capacitor
0.15
0.15
0.15
0.15
0.15
0.15
2.4
3.6
4.8
7.3
9.2
11.0
2.1
3.1
4.2
6.3
8.4
10.0
A
A
A
A
A
A
At
I
o
<
I
o,min
,the modules
may exceed output ripple
specifications
Output Current limit::
EPB-24SC48-A
EPC-24SC48-A
EPD-24SC48-A
EPE-24SC48-A
EPO-24SC48-A
EPP-24SC48-A
3.0
4.3
5.5
8.2
10.9
13.0
170
A
A
A
A
A
A
%I
o,max
kHz
V
o
=90% of V
o,set
Vo=250mV
Output Short Circuit Current
Switching Frequency
Efficiency:
EPB-24SC48-A
EPC-24SC48-A
EPD-24SC48-A
EPE-24SC48-A
EPO-24SC48-A
EPP-24SC48-A
1
370
84
85
86
86
85
84
86
87
88
88
87
86
%
%
%
%
%
%
Tc=70
o
C V
i
=48V
I
o
=I
o,max
25%-50%-75% load
Dynamic Response:
Peak Deviation
Settling Time
3
300
%V
o,set
s
0.1A/
s
Tc=25
o
C V
i
=48V
CONTROL SPECIFICATIONS:
PARAMETER
MIN
TYP
MAX
UNITS
CONDITIONS
Logic On/Off:
Logic Low: Ion/off
Von/off
Logic High:Ion/off
Von/of
Turn-On Time
8
1
1.2
50
15
25
mA
V
A
V
ms
Von/off=0V
Ion/off<1mA
Von/off=15V
Ion/off=0.0
A
I
o
= 80% of I
o,max
V
o
with +/- 1% V
o,set
Output Remote Sense Range
Output Voltage Trim Range
Over Voltage Protection
Over Temperature Protection
60
26.5
105
1.2
110
31.2
V
%V
o,set
V
o
Auto recovery
Auto recovery (except to
50W and 75W )
C
ETA-USA Tel: 408-778-2793 Fax: 408-779-2753 e-mail: sales@eta-usa.com
2
50, 75,100,150, 200,240 WATT
DC-DC Converters,
EP SERIES
ISOLATION SPECIFICATIONS:
PARAMETER
Input to Output
Input to Case
Output to Case
Input to Output Capacity
Isolation Resistance
10
MIN
TYP
1500
1500
500
2000
MAX
UNITS
Vdc
Vdc
Vdc
pF
Mohm
CONDITIONS
36~75Vdc Input
GENERAL SPECIFICATIONS:
PARAMETER
MTBF
Weight
Size
MIN
TYP
1.3
118
2.39x2.28x0.52
MAX
UNITS
Mhrs
g
in
3
CONDITIONS
Tc=40
o
C,I
o
=80% of
I
o,max
TRIM CIRCUIT
+Out
+Sense
Trim
-Sense
-Out
+Outo
+Sense
OUTLINE DRAWING
57.91
(2.28)
4.83(0.19)
R
trim-down
Load
48.26
(1.90)
INNER HOLE
M3 X 0.5
THRU (4X)
Trim
-Sense
-Out
R
trim-up
Load
-IN
-OUT
10.16
(0.40)(4X)
-S
T
CASE
60.70
(2.39)
15.24
(0.60)
ON/OFF
50.80
7.62
(2.00)
(0.30)(2X)
Trim-Down
Rtrim-down= ((100/ %)-2) Kohms
Trim-Up
12.57
(0.50)
+S
+IN
+OUT
Rtrim-up=
(
Vo(100+ %) 100+2 %
-
1.225 %
%
)
Kohms
DIA. 1.00 (0.04) PIN
(7X)
4.95(0.20)
11.51
(0.45)
DIA. 2.03 (0.08) PIN
(2X)
% = Desired Output Voltage Change
Vo = Output Voltage
Rtrim-up= External Resistor Value to Increase Vo
Rtrim-down= External Resistor Value to Decrease Vo
13.30(0.52)
19.20(0.75)
9.73(0.38)
ALUMINUM HEATSINK
SURFACE
ETA-USA Tel: 408-778-2793 Fax: 408-779-2753 e-mail: sales@eta-usa.com
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