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DC to DC Converters
Distributed Power Supplies for Systems, Insulation Type
Full Brick Type iFA Series
Power supply systems for infrastructure devices used in communi-
cation networks primarily use brick-type DC to DC converters.
Some parts of these devices require mid output voltage and
power.
We have developed a lineup of full brick types to meet these
requirements.
FEATURES
• Wide input voltage range (DC.36(Partial: 37V) to 75V or DC.18
to 36V)
• Our lineup includes products for outputs of 12V and 28V at
•
•
•
•
•
•
•
420W, 500W and 600W
High efficiency: 90 to 91%
The heat sink can be installed (Depend on an environmental
condition).
Remote ON-OFF function
Output voltage external variable function
Remote sensing function
Parallel operation
Various protective functions
PART NUMBERS AND RATINGS
(5)
Output voltage(V)
12
12
28
28
28
Current(A)
42
50
18
21
15
Part No.
iFA48042A120V
iFA48050A120V
iFA48018A280V
iFA48021A280V
iFA24015A280V
PRODUCT IDENTIFICATION
iFA
(1)
48
(2)
042A
(3)
120V
(4)
-
(1) Type name
iFA: Full brick type
(2) Rated input voltage
(3) Output current
(4) Output voltage
(5) Option code
000: Standard (13 pins for the “Power Good” signal,
Pin length: 3.68mm)
001: 13 pins for the “Power Good” signal,
Pin length: 2.79mm
002: 13 pins for the OVP signal,
Pin length: 3.68mm
003: 13 pins for the OVP signal,
Pin length: 2.79mm
• All specifications are subject to change without notice.
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SPECIFICATIONS AND STANDARDS
Part No.
Rated output voltage and current
∗1
Maximum output power
W
Input conditions
Input voltage Edc
Transient input voltage
Input current
Inrush transient
∗2
Efficiency
Output characteristics
Output voltage Edc
Voltage adjustment range
Maximum output current
Minimum output current
Output voltage initial setting
Overvoltage protection
Overcurrent protection
Line regulation
Load regulation
Voltage
Temperature
stability
regulation
Dynamic response
∗3
Ripple noise Ep-p
Start up time
Auxiliary functions
Overvoltage protection
Overcurrent protection
Power good
Over-temperature protection
Remote ON-OFF
Remote sensing
Parallel operation
Output voltage adjustment
Master slave operation
Standards
Safety standards
Constructions
External dimensions
Weight
Mounting method
Oscillating method
Oscillating frequency
∗1
∗2
iFA48042A120V
12V • 42A
504
36 to 75
[Continuation]
100[100ms]
16max.
1max.
91typ.
12
–40 to +10
42
7.35
±1.8max.
14.6typ.
45typ.
24max.(12typ.)
24max.(12typ.)
100max.(50typ.)
±450typ.
150max.
40typ.
iFA48050A120V
12V • 50A
600
37 to 75
[Continuation]
100[100ms]
18max.
1max.
90typ.
12
–40 to +10
50
0.5
±3max.
13.8 to 15.2
55typ.
24max.(12typ.)
24max.(12typ.)
100max.(50typ.)
±650typ.
200max.
35typ.
iFA24015A280V
28V • 15A
420
18 to 36
[Continuation]
50[100ms]
26.5max.
1max.
90typ.
28
–40 to +10
15
0.15
±3max.
31.9 to 35.5
17typ.
56max.(28typ.)
56max.(28typ.)
300max.(100typ.)
±500typ.
300max.
55typ.
iFA48018A280V
28V • 18A
504
36 to 75
[Continuation]
100[100ms]
16max.
1max.
91typ.
28
–40 to +10
18
3.2
±1.8max.
34.2typ.
20typ.
56max.(28typ.)
56max.(28typ.)
300max.(100typ.)
±450typ.
250max.
55yp.
iFA48021A280V
28V • 21.4A
600
36 to 75
[Continuation]
100[100ms]
20max.
1max.
90.5typ.
28
–40 to +10
21.4
3.75
±1.8max.
34.2typ
24typ.
56max.(28typ.)
56max.(28typ.)
300max.(100typ.)
±450typ.
250max.
55typ.
V
V
A
A
2
S
%
V
%
A
A
%
V
A
mV
mV
mV
mV
mV
ms
Yes(Shut-down type)
Yes(Automatic recovery)
Yes
Yes(Automatic recovery)
Yes
Yes
Impossible
Yes
No
UL60950 and VDE0805 approved. EN60950 approved.
mm
g
12.7×61.0×116.8[H×W×L]
250max.
Mounted from the terminal side (soldered).
Fixed frequency
200typ.
350typ.
kHz
155typ.
175typ.
175typ.
Verify the rated current (maximum output current) because this involves derating.
Applies only to the primary surge. The power supply does not have an input fuse, so make sure to install an external fuse when using this product.
∗3
Load step from 50 to 75% of Io max. with at least one 10µF ceramic capacitor and one 470µF low ESR aluminum or tantalum capacitor across the output
terminals.
• All specifications are subject to change without notice.
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SHAPES AND DIMENSIONS
Bottom view
5.08
3.81
7.62
12.70
8.89
6.35
7.62
22.86
106.68
114.3
3.68±0.50
M3×0.5
Threaded inserts
4 places
ø1.02
6 pins
116.8
5.1
1
2
3
4
10
9
8
7
6
5
121314 15 1617
29.21
25.40
15.24
50.80
29.21
ø2.03
8 pins
Top view
61.0
TERMINAL DESIGNATIONS AND FUNCTIONS
Top view
5.1
106.68
5.1
5.1
12.8
35.56
35.56
50.80
58.4
29.21
25.40
5.08
15.24
12.70
6.35
3.81
7.62
8.89
7.62
Dimensions in mm
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
On/Off(+)
On/Off(–)
+Vin
–Vin
–Vout
–Vout
–Vout
+Vout
+Vout
+Vout
Not Present
AUX OUT
PWR GOOD
CB
TRIM
+SENSE
–SENSE
The output can be turned on/off externally.
The output can be turned on/off externally.
DC input terminal (+)
DC input terminal (–)
DC output terminal (–)
DC output terminal (–)
DC output terminal (–)
DC output terminal (+)
DC output terminal (+)
DC output terminal (+)
Not present
Auxiliary power terminal for external signal
Output for converter operation alarm
Terminal for output current balancing
The output voltage can be varied by an external resistor.
Remote sensing terminal (+)
Remote sensing terminal (–)
• All specifications are subject to change without notice.
002-02 / 20040525 / ea33_br_ifa.fm
22.86
29.21
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OUTPUT POWER-AMBIENT TEMPERATURE (DERATING)
MAXIMUM OUTPUT CURRENT vs. AMBIENT TEMPERATURE(Ta)
iFA48042A120V
iFA48021A280V
Wind direction: Best orientaion, Vin=48V
Wind direction: Best orientaion, Vin=48V
50
25
40
Output current (A)
Output current (A)
20
30
15
20
10
200LFM
400LFM
35
45
10
25
35
45
55
65
75
85
Temperature (˚C)
95
105
115
5
25
55
65
75
Temperature (˚C)
85
95
NC
0.5m/s(100LFM)
1.0m/s(200LFM)
2.0m/s(400LFM)
3.0m/s(600LFM)
Max. IMS < 200LFM
Max. IMS > 200LFM
(Please inquire for other models.)
iFA24015A280V
Wind direction: Best orientaion, Vin=24V
16
15
13
12
11
10
9
8
7
6
5
30
40
50
60
70 80 90 100 110 120 130
Temperature (˚C)
3.0m/s(600LFM)
Max. IMS 1m/s
Max. IMS 1m/s
Tc TEMPERATURE MEASUREMENT POINT AND WIND
DIRECTION
NC: Natural cooling=0.3m/s(60LFM)
72.6
Thermal measurement
location
Best orientation
airflow
Dimensions in mm
25.4
14
Output current (A)
Worst orientation
airflow
NC
0.5m/s(100LFM)
1.0m/s(200LFM)
2.0m/s(400LFM)
COMMON SPECIFICATIONS
Temperature and humidity
Operating(°C)
Temperature range
Storage(°C)
Operating(%)RH
Humidity range
Storage(%)RH
Vibration and shock
5 to 50Hz
Vibration
50 to 500Hz
Acceleration
Shock
Pulse duration
Withstand voltage
Withstand voltage
Input terminal to output terminal
–40 to +110[Temperature at the measurement point in the above drawing]
–55 to +125[Ambient temperature of the power supply]
10 to 85[Without dewing]
Acceleration: 0.5G
Acceleration: 1.5G
50G[Half sine wave, 3 directions]
6ms
DC.1.5kV[1min, Normal temperature, normal humidity, cutout current 10mA]
• All specifications are subject to change without notice.
002-02 / 20040525 / ea33_br_ifa.fm
Output
Input
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