Efficiency Curve (Ta=25
C)
Vin=36V
Vin=48V
Vin=75V
Io [A]
40
45
50
55
60
65
70
75
80
85
0
0.5
1
1.5
2
2.5
3
3.5
Loss Curve (Ta=25
C)
Vin=36V
Vin=48V
Vin=75V
Io [A]
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0
0.5
1
1.5
2
2.5
3
3.5
Over Current (Ta=25
C)
Io [A]
0
0.5
1.0
1.5
2.0
0
1
2
3
4
5
3.5A 3.55A
3.85A
Load Regulation (Ta=25
C)
Io [A]
0
1.9
1.85
+5%
-3%
1.8
1.75
1.7
0
1
2
3
4
5
Vin=36V
59mV
Vin=48V
EFF
[%]
Loss
[W]
Vo
[V]
Vo
[V]
Vin=75V(1.33V)
=48V(1.29V)
=36V(1.28V)
Vin=75V
EPH1R 8030
[
1
]
Electrical Specification
Output Side Ta
-
40 ~ 85
C Vi 36 ~75 V
Unit
Output
Conditions
Characteristics
Max.
Typ.
Min.
V
1.89
1.8
1.71
Ta = 25
C Io = 0~3 A Vi = 48 V
Output Voltage Initial Setting
Vo
mV
10
Io = 3 A Vi = 36~75 V
Line Regulation
mV
50
Io = 0~3 A Vi = 48 V
Load Regulation
A
3
0
Output Current
Io
W
6
Po Max
A
3.1
Output Over Current Limit
V
2.52
2.16
Output Over Voltage Protection
V
1.62
Output Low Voltage Protection
mV
P
P
100
30
20 Hz~5 MHz
0.6 Hz ~50 MHz
Io = Io Max.
Output Ripple & Noise
Voac
dB V
80
[
2
]
Efficiency & Power Dissipation
Unit
Max.
Typ.
Min.
Conditions
Characteristics
%
80
Io = 3 A Vi = 48 V
Efficiency
W
1.4
Io = 3 A Vi = 48 V
Power Dissipation
Pd
Control
Circuit
ALM
SW
Vin
36
~
75V
Fuse
Vin-
Vin+
REMOTE
START out
START in
PEC in
PEC out
OPPS
TEST
+
-
Drive
Load
Vout -
Vout +
DC/DC converter
Power on by swich
DC/DC CONVERTER
* Please connect from PECin PIN, STARTin PIN, OPPS PIN to Vin-PIN in Natural Convection.
* TEST PIN is always open.
* We recommend to insert fuses (2A) Vin-lines for EPH series.
Application 1 [Single operation]
Control
Circuit
ALM
SW
Vin
36
~ 75V
Fuse
Vin-
Vin+
REMOTE
START out
START in
PEC in
PEC out
OPPS
TEST
+
-
Drive
Vout-
Vout+
Control
Circuit
ALM
Fuse
Vin-
Vin+
REMOTE
START out
START in
PEC in
PEC out
OPPS
TEST
Drive
Vout-
Vout+
DC/DC converter
Power on by swich
DC/DC CONVERTER 1
Load
DC/DC CONVERTER 2
* Please connect parallel for REMOTE and ALARM signals.
* Please connect loop line for PEC and START.
* Please connect from OPPS PIN to Vin-PIN in Natural Convection.
* TEST PIN is always open.
* Please insert necessarily fuses (250V 2A) Vin-lines for EPH series.
Application 2 [Parallel operation]
Package
322.6
315.0
135.9
32.0
12.19
C3
44.0
6
P44.0=264.0
10.16
3
P32.0=96.0
Notes : 1. The shape of the tray complies with JEDEC standards.
2. Product carrying capacity : 28 pcs./tray
3. Heat resistant temperature : 150
C max. (high heat resistance type)
4. The following markings must be indicated on the handle :
1) Company name : Shindengen 2) Package name : MSOP-143) Heat resistant temperature4) Material
Modular lead : 220
C max.
300
250
200
150
100
50
0
0
40
80
120
160
200
240
280
300
(Seconds)
(
C)
220
C min.
Within 40 seconds
Within 5 seconds
1) The atmospheric temperature of the modular lead should be 220
C for no more than 5 seconds.
2) Refer to the graph above for an example of a recommended profile.
3) Precautions Concerning Heating Method
Since allowing the PWB to stand at a high temperature for an extended period of time may have a detrimental effect on reliability,
it is necessary to perform soldering as quickly as possible to prevent the temperature of the PWB from rising excessively.
In addition, since areas of local temperature rise may occur when using a halogen lamp or infrared heater, avoid irradiating the
surface of the PWB directly.
Temperature Profile
PDF 
ZIP