Murata EUS20-120-PHCRVC Bus converter Datasheet

Bus Converter
EUS20-120 Model
Features:
9
48 Vin, Isolated, 4:1 Fixed Conversion Ratio
9
250 Watt Output at 48 Vin, 55 C, 200 LFM
9
200 Watt Output at 38 Vin, 55 C, 200 LFM
9
Industry Standard 1/8 Brick Footprint
9
Remote Enable (Primary Side, Positive or Negative)
9
Over-temperature and Over Current Protection
9
Direct Parallel Operation for Higher Power
9
RoHS Compliant
Table 1
Input Characteristics
Input Voltage Operating Range
Input Voltage Absolute Maximum
Notes & Conditions
Min
36
Turn-on Threshold
Turn-off Threshold
Hysteresis Voltage
Turn-on Threshold
Turn-off Threshold
Hysteresis Voltage
Steady-State (26 A out)
Enabled state, no load (48 Vin)
Disabled state (48 Vin)
Note (10)
36
34
Enable – Negative Logic Version
Internal 10 K pull-up to 5 V.
On State range
Off State range
Enable – Positive Logic Version
Internal 100 K pull-down to GND.
On State range
Off State range
Input Undervoltage Lockout
Input Overvoltage Lockout
Maximum Input Current
No-Load Input Current
Disabled Input Current
Input Reflected Ripple Current
Inrush Current Transient
Typ.
48
Max
55
60
37.5
35.5
57
58
Units
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Adc
mA
mA
mA p-p
2
As
-0.1
2.4
0.8
5.0
Vdc
Vdc
2.4
-0.1
5.0
0.8
Vdc
Vdc
2
55
56
2
6.4
98
6
25
0.2
Table 2
Output Characteristics
Notes & Conditions
Min
Typ.
Max
Units
Output Voltage Set Point (Vo=Vin/4 +0/-0.5%)
Output Load Regulation
Output Voltage Total Regulation
Vin = 48.0 V, Io = 0 A
Io = 0 to 20 A
Vin = 36 to 55 V, Io = 0 to 20 A,
Vin = 42 to 53 V, Io = 0 to 23 A,
11.94
11.98
0.7
12.0
Output Ripple Voltage & Noise
20 MHz Bandwidth
Output Current Operating Range
Output Current Share Accuracy
Efficiency
Turn-On Time
Start-up Inhibit Time
Transient Response
20
Percent deviation from ideal (9)
Vin = 48 V, Io = 20 A
Vin present: Enable to 90% Vout
Enabled: Vin applied to 90% Vout
Vdc
V
Vdc
Vdc
mV
p-p
A
%
%
mS
mS
mV
100
2000
μs
μF
8.3
9.7
13.75
13.25
90
0
25% step, 0.1A/μs, ΔVo
Recovery Time
Maximum Output Capacitance
150
< 10
95.5
10
80
160
Technical enquiries email: [email protected], tel: +508 339 3000
1
EUS20-120-6200921520.B01 18/04/08
Murata Power Solutions
BUS CONVERTER
EUS20-120 Model
Table 1
Protection Characteristics
Notes & Conditions 0
Min
Typ.
Max
Units
Output Over-Current Shutdown
Non-Latching
Re-start rate
Non-Latching
24
25
75
125
10
27
A
msec
°C
°C
Over Temperature Shutdown (5)
Over Temperature Restart Hysteresis
130
Table 2
General Specifications
Notes & Conditions 0
Min
Isolation Voltage
Isolation Resistance
Storage Temperature Range
Operating Temperature Range
Thermal Measurement Location Temperature (7)
Material Flammability
MTBF
Input to Output
Input to Output
Non-condensing
Ambient (7)
See mechanical drawing for location
UL 94V-0
Calculated (Bellcore TR-332)
Demonstrated
2.28”L x 0.9”W x 0.48”H (max)
(57.9L x 22.9W x 12.19H mm max)
2250
10
-40
-40
Dimension
Weight
Typ.
Max
Units
125
100
120
Vdc
Mohm
°C
°C
°C
6
2.7
2
x10 Hrs
6
x10 Hrs
30
grams
Table 3
Standards Compliance
Notes & Conditions (6)
UL/CSA 60950
EN60950
Basic Insulation
Certified by TUV
Notes:
Vin = 48Vdc, Ta = 25 °C, Airflow = 200 LFM for all data unless otherwise noted.
Output ripple voltage and noise is specified when measured with a 10uF tantalum and a 1uF ceramic capacitor at the converter output pins.
Transient response is specified without a capacitor at the output of the converter.
Product operates with an external capacitance significantly greater than specified. However, for values higher than 2000uF please contact
C&D representative.
Thermal shutdown is monitored at the Thermal Measurement Location (TML). See ‘Mechanical Information’ on page 3 for TML location.
See ‘Safety Considerations’ shown on last page.
De-rating curves are conducted in a controlled environment. End application testing is required to ensure the Thermal Measurement
Location temperature is below the maximum specified.
Recommended airflow direction is from pin 1 to pin 3, or 3 to 1 (transverse airflow).
Current share accuracy is optimized when the source and load impedance presented to each converter is equal.
Input Reflected Ripple is specified when measured with a 12uH source inductance.
EUS20-120-6200921520.B01 18/04/08
2
Murata Power Solutions
BUS CONVERTER
EUS20-120 Model
Mechanical Information
Figure 1
Pin Assignment
Table 4
Pin #
Pin Name
Function
1
Vi(+)
Positive Input Voltage
2
En
Input Enable / Disable
3
4
5
Vi(-)
Vo(-)
Vo(+)
Negative Input Voltage
Negative Output Voltage
Positive Output Voltage
Notes & Conditions
Referenced to Vi(-).
Positive Logic: Floating = Enabled
Negative Logic: Floating = Disabled
EUS20-120-6200921520.B01 18/04/08
3
BUS CONVERTER
Murata Power Solutions
EUS20-120 Model
Efficiency Curves
Efficiency (%) vs. Iout (A) and Vin (V)
97%
96%
95%
94%
93%
55Vin
92%
48Vin
42Vin
91%
38Vin
90%
2
4
6
8
10
12
14
16
18
20
22
24
20
22
24
Output Voltage vs. Current
Vo (V) vs. Io (A) and Vin (V)
14
13
12
11
10
9
55 Vin
8
48 Vin
42 Vin
7
38 Vin
6
0
2
4
6
8
10
12
14
16
18
EUS20-120-6200921520.B01 18/04/08
4
BUS CONVERTER
Murata Power Solutions
EUS20-120 Model
Thermal Derating Curves (Transverse) TTML=120C
Airflow from pin 3 to pin 1
Iout (A) vs. Tamb (C) and Air Flow (LFM) at 42 Vin
Iout (A) vs. Tamb (C) and Air Flow (LFM) at 38 Vin
24
22
24
22
20
18
16
14
12
10
8
6
4
2
0
20
18
16
14
12
10
8
6
4
2
0
100 LFM
200 LFM
300 LFM
400 LFM
25
35
45
55
65
75
100 LFM
200 LFM
300 LFM
400 LFM
25
85
35
45
55
65
75
85
Iout (A) vs. Tamb (C) and Air Flow (LFM) at 55 Vin
Iout (A) vs. Tamb (C) and Air Flow (LFM) at 48 Vin
24
24
22
22
20
20
18
18
16
16
14
14
12
12
100 LFM
10
8
6
100 LFM
10
8
200 LFM
200 LFM
6
300 LFM
4
300 LFM
4
400 LFM
2
2
0
400 LFM
0
25
35
45
55
65
75
85
25
35
45
55
65
75
85
Output Power Curves at 200 LFM
as a function of Ambient Temperature and Vin
350
300
250
200
150
100
Vin = 38 VDC
Vin = 42 VDC
Vin = 48 VDC
Vin = 55 VDC
50
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature
EUS20-120-6200921520.B01 18/04/08
5
BUS CONVERTER
Murata Power Solutions
EUS20-120 Model
Turn-on from Vin (Enable On)
Figure 9
Turn-on from Enable (Vin present)
Ch1: Vin; Ch2: Vout
Figure 10
C3: Enable; Ch2: Vout
Vin=48V, Io=20A, Co=1000uF
Output Ripple/Noise
Vin=48V, Io=20A, Co=1000uF
Thermal Image
140.0°C
140
120
SP04: 86.7
SP01: 83.4
100
SP03: 78.0
80
SP02: 77.0
SP05: 91.2
60
40
40.0°C
Figure 11
Vin=48V, Io=20A
Figure 12
Vripple = 114 mVpp
Vi=48 V, Iout=20 A,
200 LFM bottom side
EUS20-120-6200921520.B01 18/04/08
6
Safety Considerations
The EUS series of converters are certified to the standards listed in the ‘Standards Compliance’ section in the table above. If this product is built into information
technology equipment, the installation must comply with the above standard.
An external input fuse (10 A recommended), must be used to meet the above requirements.
The output of the converter [Vo(+)/Vo(-)] is considered to remain within SELV limits when the input to the converter meets SELV or TNV-2 requirements.
The converters and materials meet UL 94V-0 flammability ratings.
Figure 13
Ordering Information
7
EUS20-120-6200921520.B01 18/04/08
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